June 2009 Human-Factors Taxonomy preface



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                  1. Reduce Enemy Equipment Effectiveness

1.3.3.6.2.2.2.2.2.1 Conduct Jamming

1.3.3.6.2.2.2.2.2.2 Counter Target Acquisition Systems

1.3.3.6.2.2.2.2.2.3 Employ Disabling Agents


            1. Air Defense BOSs

              1. Process Air Targets

                1. Select Air Target to Attack

                2. Select System for Air Targets

                  1. Determine System Capability for Air Engagement

                  2. Determine System Availability for Air Engagement

                  3. Select System for Air Engagement

                3. Develop Order to Fire at Air Targets

              2. Attack Air Targets

                1. Conduct Lethal Engagement of Air Targets

                  1. Employ Air-to-Air Weapons

                  2. Employ Surface-to-Air Weapons

1.3.3.6.2.3.2.1.2.1 Employ Air Defense Artillery

1.3.3.6.2.3.2.1.2.2 Employ Other Unit Fires



                1. Command and Control BOSs

                2. Acquire and Communicate Information and Maintain Status

                3. Communicate Information

                  1. Receive and Transmit Mission

                  2. Receive and Transmit Enemy Information

                  3. Receive and Transmit Terrain and Weather Information

                4. Manage Means of Communicating Information

                5. Maintain Information and Force Status

                  1. Store Information

                  2. Display Information

                  3. Publish and Reproduce Information

                  4. Manage Information Distribution

              1. Assess Situation

                1. Review Current Situation

                  1. Analyze Mission

                  2. Fuse Information (data fusion)

                  3. Evaluate Incoming Information

                2. Project Future Requirements

                3. Decide on Need for Action or Change

              2. Determine Actions

                1. Issue Planning Guidance

                2. Develop Courses of Action

                3. Analyze Courses of Action

                4. Compare Courses of Action

                5. Select or Modify Course of Action

              3. Direct and Lead Subordinate Forces

                1. Prepare Plans or Orders

                  1. Develop and Complete Plans or Orders

                  2. Coordinate Support

                  3. Approve Orders

                2. Issue Orders

                3. Provide Command Presence

            1. Intelligence BOSs

              1. Collect Information

                1. Collect Information on Situation

                  1. Collect Threat Information

                  2. Collect Physical Environment Information

                  3. Collect Social/Political/Economic Environment Information

                2. Collect Information on Targets

                  1. Search for Targets

                  2. Detect Targets

                  3. Locate Targets

                  4. Identify Targets

                  5. Conduct Post-Attack Target Damage Assessment

              2. Process Information

                1. Evaluate Threat Information

                  1. Review Holdings

                  2. Consider Enemy Doctrine

                2. Evaluate Physical Environment Information

                  1. Review Holdings

                  2. Consider Status

                  3. Develop Impacts

                3. Evaluate Social/Political/Economic Environment

                4. Integrate Intelligence Information

                  1. Develop Enemy Intentions

                  2. Develop Targeting Information

              3. Prepare Intelligence Reports

                1. Prepare Reports on Target Development

                2. Prepare Reports on Enemy Intentions

                3. Prepare Reports on Battlefield Area

                4. Prepare Reports on Enemy Situation

            2. Mobility and Survivability BOSs

              1. Provide Mobility

                1. Overcome Obstacles

                  1. Breach Obstacles

1.3.3.6.2.6.1.1.1.1 Breach Minefields

1.3.3.6.2.6.1.1.1.2 Breach All Other Obstacles



                  1. Reduce/Clear Obstacles

                  2. Cross Gaps

                1. Enhance Movement

                  1. Construct/Repair Combat Roads and Trails

                  2. Construct/Repair Forward Airfields and Landing Zones

                2. Facilitate Movement on Routes

              1. Provide Countermobility

                1. Secure/Select Location of Obstacles

                2. Emplace Obstacles

                  1. Emplace Mines

                  2. Prepare/Emplace Constructed Obstacles

                  3. Emplace Demolition Obstacles

                  4. Emplace Chemical Obstacles

                3. Mark Obstacles

                4. Detonate Mines/Explosives

              2. Enhance Survivability

                1. Provide Battlefield Hazard Protection

                  1. Protect Individuals and Systems

1.3.3.6.2.6.3.1.1.1 Employ Electronic Countermeasures

1.3.3.6.2.6.3.1.1.2 Prepare Fighting Positions

1.3.3.6.2.6.3.1.1.3 Prepare Protective Positions

1.3.3.6.2.6.3.1.1.4 Employ Protective Equipment



                  1. Remove Battlefield Hazards

1.3.3.6.2.6.3.1.2.1 Decontaminate Personnel and Systems

1.3.3.6.2.6.3.1.2.2 Provide Explosive Ordnance Disposal (EOD) Support



                1. Employ Operations Security

                  1. Employ Signal Security (SIGSEC)

1.3.3.6.2.6.3.2.1.1 Employ Communications Security

1.3.3.6.2.6.3.2.1.1.1 Employ Physical Security Measures

1.3.3.6.2.6.3.2.1.1.2 Maintain Emission Security

1.3.3.6.2.6.3.2.1.2 Maintain Other Electronic Security



                  1. Employ Concealment Techniques

1.3.3.6.2.6.3.2.2.1 Employ Camouflage

1.3.3.6.2.6.3.2.2.2 Employ Noise, Light, and Physical Evidence Controls



                  1. 1.3.3.6.2.6.3.2.2.3 Employ Smoke/Obscurants

                1. Conduct Deception in Support of Tactical Operations

                  1. Employ Physical Deception

                  2. Employ Electronic Deception

1.3.3.6.2.6.3.3.2.1 Employ Initiative Electronic Deception

1.3.3.6.2.6.3.3.2.2 Employ Simulative Electronic Deception

1.3.3.6.2.6.3.3.2.3 Employ Manipulative Electronic Deception


            1. Combat Service Support BOSs

              1. Arm Weapons

              2. Fuel Vehicles

              3. Repair Equipment

                1. Distribute Equipment

                2. Repair/Maintain Equipment

                  1. Perform Preventive Maintenance of Equipment

                  2. Recover Equipment

                  3. Diagnose Equipment

                  4. Substitute Equipment

                  5. Exchange Equipment

                  6. Repair Equipment

                  7. Return Equipment

              4. Man the Force

                1. Distribute Support Services and Supplies

                2. Provide Field Services

                  1. Provide Clothing Exchange and Bath

                  2. Provide Graves Registration

                  3. Salvage

                  4. Provide Laundry and Renovation

                  5. Provide Bakery

                  6. Feed Personnel

                3. Provide Personnel Service Support

                  1. Provide Personnel Administrative Services

1.3.3.6.2.7.4.3.1.1 Maintain Personnel Strength

1.3.3.6.2.7.4.3.1.1.1 Provide Strength Management

1.3.3.6.2.7.4.3.1.1.2 Conduct Replacement Operations

1.3.3.6.2.7.4.3.1.1.3 Perform Casualty Reporting Operations

1.3.3.6.2.7.4.3.1.2 Provide Career Management Support

1.3.3.6.2.7.4.3.1.2.1 Provide Officer Accessions Support

1.3.3.6.2.7.4.3.1.2.2 Provide Promotions and Reductions Support

1.3.3.6.2.7.4.3.1.2.3 Control Personnel Evaluation Reports

1.3.3.6.2.7.4.3.1.2.4 Provide Awards and Decorations Support

1.3.3.6.2.7.4.3.1.2.5 Record Personnel Information

1.3.3.6.2.7.4.3.1.3 Provide Soldier Support Activities

1.3.3.6.2.7.4.3.1.3.1 Conduct Postal Operations

1.3.3.6.2.7.4.3.1.3.2 Provide Morale, Welfare, and Recreation Activities

1.3.3.6.2.7.4.3.1.3.3 Provide Band Support



                  1. Provide Finance Services

1.3.3.6.2.7.4.3.2.1 Provide Commercial Accounts Services

1.3.3.6.2.7.4.3.2.2 Perform Pay Services

1.3.3.6.2.7.4.3.2.3 Perform Disbursing Services

1.3.3.6.2.7.4.3.2.4 Perform Accounting Services

1.3.3.6.2.7.4.3.2.5 Provide Travel Pay


                  1. Provide Resource Management

                  2. Perform Chaplain Activities

1.3.3.6.2.7.4.3.4.1 Provide Religious Support

1.3.3.6.2.7.4.3.4.2 Provide Pastoral Care and Counseling

1.3.3.6.2.7.4.3.4.3 Advise on Moral and Ethical Issues


                  1. Provide Public Affairs Services

1.3.3.6.2.7.4.3.5.1 Provide Command Information

1.3.3.6.2.7.4.3.5.2 Advise/Assist in Community Relations

1.3.3.6.2.7.4.3.5.3 Provide Public Information


                  1. Provide Legal Service Support

1.3.3.6.2.7.4.3.6.1 Interpret Administrative/Contract Law

1.3.3.6.2.7.4.3.6.2 Administer Criminal Law

1.3.3.6.2.7.4.3.6.3 Conduct Claims

1.3.3.6.2.7.4.3.6.4 Provide Legal Assistance

1.3.3.6.2.7.4.3.6.5 Interpret International/Operational Law


                1. Provide Health Services

                  1. Provide Medical Treatment

                  2. Evacuate Casualties

                  3. Provide Preventive Medicine

                  4. Provide Veterinary Services

                2. Distribute Cargo, Equipment, and Personnel

                  1. Provide Transport Services

1.3.3.6.2.7.4.5.1.1 Conduct Terminal Operations

1.3.3.6.2.7.4.5.1.1.1 Receive Requirements

1.3.3.6.2.7.4.5.1.1.2 Unload Cargo, Equipment, and Personnel

1.3.3.6.2.7.4.5.1.1.3 Load Cargo, Equipment, and Personnel

1.3.3.6.2.7.4.5.1.1.4 Provide Terminal Services


                  1. Move/Evacuate Cargo, Equipment, and Personnel

1.3.3.6.2.7.4.5.2.1 Move by Surface

1.3.3.6.2.7.4.5.2.2 Move by Air



                1. Supply the Force

                  1. Request Supplies

                  2. Receive Supplies

                  3. Produce Supplies

                  4. Procure Supplies

                  5. Store Supplies

                  6. Protect Supplies

                  7. Relocate Supplies

                  8. Issue Supplies

              1. Provide Sustainment Engineering

                1. Perform Rear-Area Restoration

                2. Perform Logistics Operations Center Sustainment

                3. Provide Engineer Construction Support

                4. Provide Engineer Construction Material

              2. Provide Military Police Support

                1. Perform Enemy Prisoner of War Operations

                2. Conduct Law and Order Operations

          1. Operational Activities

            1. Perform Operational Movements and Maneuvers

              1. Conduct Operational Movement

                1. Formulate Request for Strategic Deployment of Joint/Combined Forces to Theater of Operations

                2. Conduct Intra-Theater Operations Deployment of Forces

              1. Conduct Operational Maneuver

                1. Transition to and from Tactical Battle Formations

                2. Posture Forces for Operational Formations

                3. Conduct Operations in Depth

              2. Provide Operational Mobility

                1. Overcome Operationally Significant Obstacles

                2. Enhance Movement of Operational Forces

              3. Provide Operational Countermobility

                1. Select Location for Operational Forces

                2. Emplace Operational Systems of Obstacles

              4. Control Operationally Significant Area

            1. Direct Operational Fires

              1. Process Operational Targets

                1. Select Operational Targets for Attack

                2. Allocate Joint/Combined Operational Fires Resources

              2. Attack Operational Targets

                1. Conduct Lethal Attack on Operational Targets

                  1. Conduct Attack With Surface/Subsurface-Based Operational Fires

                  2. Conduct Aerospace Operational Fires Attack

                1. Conduct Nonlethal Attack on Operational Targets

                  1. Reduce Enemy Operational Force Effectiveness

                  2. Reduce Enemy Critical Facilities Effectiveness

                  3. Integrate Operational Fires

            1. Provide Operational Protection

              1. Provide Operational Air Defense

                1. Process Operational Air Defense Targets

                  1. Allocate Targets for Attack

                  2. Integrate Joint/Combined Operational Air Defense Forces

                2. Provide Airspace Control

                  1. Employ Positive Control Measures

                  2. Employ Procedural Control Measures

                3. Attack Enemy Air Defense Targets

                  1. Conduct Lethal Attack on Operational Air Defense Targets

                  2. Conduct Nonlethal Attack on Operational Air Defense Targets

              2. Provide Protection for Operational Forces and Means

                1. Prepare Operationally Significant Fortifications

                2. Remove Operationally Significant Hazards

                3. Protect Use of Electromagnetic Spectrum

              3. Employ Operations Security

                1. Employ Signal Security (SIGSEC)

                2. Employ Concealment Techniques

              4. Conduct Deception in Support of Campaigns and Major Operations

                1. Protect Details of Campaigns and Major Operations

                2. Spread Misinformation Regarding Conduct of Operations

                3. Assess Effect of Operational Deception Plan

              5. Provide Security for Operational Forces and Means

            2. Provide Operational Command and Control

              1. Acquire and Communicate Operational Level Information and Maintain Status

                1. Communicate Operational Information

                2. Manage Means of Communicating Operational Information

                3. Maintain Operational Information and Force Status

                4. Monitor Strategic Situation

              2. Assess Operational Situation

                1. Review Current Situation

                2. Project Future Campaigns or Major Operations

                3. Decide on Need for Action or Change

              3. Determine Operational Actions

                1. Issue Planning Guidance

                2. Develop Courses of Action

                3. Analyze Courses of Action

                4. Compare Courses of Action

                5. Select or Modify Courses of Action

                6. Finalize Commander’s Concept and Intent

              4. Direct and Lead Subordinate Operational Forces

              5. Prepare Initial Campaign or Major Operational Plans and Orders

                  1. Develop and Complete Operational Plans and Orders

                  2. Coordinate Service Components, Theater Army, and Other Support

                  3. Approve Plans and Orders

                1. Issue Plans and Orders

                2. Provide Operational Command Presence

                3. Synchronize Operations

              6. Employ Command, Control, and Communications (C3)

            3. Provide Operational Intelligence

              1. Collect Operational Information

                1. Collect Information on Operational Situation and Hazards

                2. Collect Information on Operational Targets

              2. Process Operational Information

                1. Evaluate Operational Threat Information

                2. Analyze Area of Operations

                3. Integrate Operational Intelligence

                  1. Develop Enemy Operational Intentions

                  2. Develop Operational Target Information

                4. Develop Indications and Warnings

                5. Identify Friendly Vulnerables

              3. Prepare Operational Intelligence Reports

            4. Provide Operational Support

              1. Arm Weapons

              2. Fuel Vehicles

              3. Repair/Maintain Equipment

              4. Man the Force

                1. Provide Field, Personnel, and Health Services

                2. Reconstitute Forces

                3. Train Units and Personnel

                4. Conduct Theater of Operations Reception Operations

              5. Distribute Cargo, Equipment, and Personnel

                1. Provide Movement Services

                2. Supply Operational Forces

              6. Maintain Sustainment Base(s)

                1. Recommend Number and Location of Sustaining Base(s)

                2. Provide Sustainment Engineering

                3. Provide Law Enforcement and Prisoner Control

              7. Conduct Civil Affairs

              8. Evacuate Noncombatants from Theater of Operations

        1. Conflict

          1. Level of Conflict

            1. High-Intensity Conflict

            2. Mid-Intensity Conflict

            3. Low-Intensity Conflict

        2. Peacetime Competition

        3. Humanitarian Support

        4. Anti Terrorism

        5. Counterdrug Activities

      1. Defense Readiness Condition (DEFCON)

        1. DEFCON (5)

        2. DEFCON (4)

        3. DEFCON (3)

        4. DEFCON (2)

        5. DEFCON (1)

    1. Operator Environment

      1. Facility Description

        1. Facility Units

        2. User Categories

        3. Furnishing Allocations

        4. Facility Management Plan

        5. Alteration Expectancies

        6. User Activity Descriptions

        7. Environmental Control

      2. User Activity Support

        1. Furnishings and Hardware Design Criteria

        2. Furnishings, Hardware, and User Placement

        3. Ambient Environmental Criteria

        4. Convenience, Safety, and Security

      3. Surfaces

        1. User Effects Possibilities

        2. Color, Texture, and Pattern

        3. Durability and Maintainability

      4. Circulation

        1. Information Flow

        2. User Flow

        3. Equipment and Material Flow

        4. Movement Priorities

        5. Circulation Pattern Summary

      5. Spatial Configurations and Arrangements

        1. Space Requirements

        2. Unit Adjacencies

        3. Candidate Spatial Configurations and Arrangements

      6. Location

        1. Area and Regional Integration

        2. Facility Orientations and Adjacencies

        3. Transportation Interface

      7. Vibration (subsonic or sonic)

        1. Duration of Vibration

          1. Continuous Vibration [seconds]

          2. Impulsive Vibration [seconds]

          3. Intermittent Vibration [seconds]

        2. Frequency of Vibration

          1. Constant Frequency of Vibration [hertz]

          2. Variable Frequency of Vibration [hertz]

        3. Intensity of Vibration

          1. Constant Intensity of Vibration [dB relative to 1 picowatt]

          2. Variable Intensity of Vibration [dB relative to 1 picowatt]

      8. Acceleration

        1. Positive Force (g)

          1. Linear Acceleration [meters per second per second; gx, gy, g2]

          2. Angular Acceleration [radians per second per second; groll, gpitch, guaw ]

      9. Noise (audible vibration)

        1. Duration of Noise

          1. Continuous Noise [seconds]

          2. Impulsive Noise [seconds]

          3. Intermittent Noise [seconds]

        2. Frequency of Noise

          1. Constant Frequency of Noise [hertz]

          2. Variable Frequency of Noise [hertz]

        3. Intensity of Noise

          1. Constant Intensity of Noise [dBA]

          2. Variable Intensity of Noise [dBA]

        4. Noise Medium

          1. Atmospheric Noise [dBA]

          2. Communications Noise [dBA]

          3. Hydrospheric Noise [dBA]

        5. Frequency Range of Noise

          1. Sonic Noise [hertz]

          2. Ultrasonic Noise [hertz]

        6. Reduced/Zero Force [meters per second per second]

      10. Man-Made Lighting

        1. Type of Lighting

          1. Fluorescent Lighting

          2. Incandescent Lighting

            1. White Light

            2. Blue Light

            3. Red Light

          3. Solid-State Lighting

          4. Gas-Discharge Lighting (e.g., mercury-vapor)

        2. Attributes of Lighting

          1. Luminance [lux]

          2. Heat Produced [degrees Celsius temperature increase]

          3. Transmittance

            1. Light Emitting Sources

              1. Diffuse Light Sources

              2. Direct Light Sources

            2. Reflected Light Sources

          4. Light Quality

            1. Chromaticity

              1. C.I.E. Coordinates

              2. Chromaticity Shifts

                1. Variations in Current/Voltage

                2. Device Life

              3. Perceived Colors

                1. Photopic Vision

                2. Scotopic Vision

                3. Apparent Color Hue Changes

              4. Wavelengths

              5. Polarization

      11. Dynamic Pressure [pascals]

        1. Dynamic Pressure [pascals]

        2. Static Pressure [pascals]

      12. Altitude [meters above sea level]

        1. Reduced Oxygen [parts per million]

        2. Partial Pressure [parts per million]

  1. Mission

    1. Scenario/Conditions (Same as Environment, Item 1)

      1. Function

        1. Job

          1. Duty

            1. Task

              1. Subtask

                1. Task Element

                  1. Type of Task Element

2.1.1.1.1.1.1.1.1.1 Communication Element

2.1.1.1.1.1.1.1.1.1.1 Type (Function) of Communication

2.1.1.1.1.1.1.1.1.1.1.1 Administration

2.1.1.1.1.1.1.1.1.1.1.2 Advice

2.1.1.1.1.1.1.1.1.1.1.3 Answering

2.1.1.1.1.1.1.1.1.1.1.4 Comprehension

2.1.1.1.1.1.1.1.1.1.1.5 Consultation

2.1.1.1.1.1.1.1.1.1.1.6 Coordination

2.1.1.1.1.1.1.1.1.1.1.7 Direction

2.1.1.1.1.1.1.1.1.1.1.8 Indicating

2.1.1.1.1.1.1.1.1.1.1.9 Informing

2.1.1.1.1.1.1.1.1.1.1.10 Instruction

2.1.1.1.1.1.1.1.1.1.1.11 Investigation

2.1.1.1.1.1.1.1.1.1.1.12 Negotiation

2.1.1.1.1.1.1.1.1.1.1.13 Reception

2.1.1.1.1.1.1.1.1.1.1.14 Requesting

2.1.1.1.1.1.1.1.1.1.1.15 Speaking (job- or public-related)

2.1.1.1.1.1.1.1.1.1.1.16 Supervision

2.1.1.1.1.1.1.1.1.1.1.17 Transmission

2.1.1.1.1.1.1.1.1.1.2 Attributes of Communication

2.1.1.1.1.1.1.1.1.1.1.2.1 Oral Communication

2.1.1.1.1.1.1.1.1.1.1.2.2 Written Communication

2.1.1.1.1.1.1.1.1.1.3 Mediation Element

2.1.2.1.1.1.1.1.1.1.3.1. Type (Function) of Mediation



2.1.2.1.1.1.1.1.1.1.3.2 Information Processing

            1. Categorization

            2. Calculation (mathematical operators)

            3. Coding

            4. Computation (logical operators)

            5. Interpolation

            6. Itemization

            7. Learning

            8. Tabulation

            9. Translation

          1. Problem Solving and Decision Making [time in seconds, number of errors]

            1. Analysis

            2. Deduction

            3. Induction

            4. Calculation (mathematical operators)

            5. Comparison

              1. Ordering

            6. Computation (logical operators)

            7. Estimation

            8. Integration

            9. Planning

            10. Selection

              1. Selecting From Known Alternatives

              2. Selecting From Unknown Alternatives

              3. Selecting From Unspecified Alternatives

            11. Supervision

            12. Prediction of Occurrence of an Event

          2. Recollection

            1. Recollection of Facts

            2. Recollection of Principles

            3. Recollection of Procedures

            4. Timesharing

        1. Attributes of Mediation

          1. Complexity

          2. Difficulty

      1. Motor Processes Element

        1. Type (Function) of Motor Process

          1. Complex Continuous Processes

            1. Adjustment

            2. Alignment

            3. Insertion of Object

            4. Regulation

            5. Removal of Object

            6. Synchronization

            7. Tracking

              1. Visual Tracking Only

              2. Visual Tracking Plus Position Plotting

            8. Typing Message on Keyboard

            9. Writing

          2. Compound Processes

          3. Reflex Processes

            1. Intersegmental Processes

            2. Segmental Processes

            3. Suprasegmental Processes

          4. Simple Discrete Processes

            1. Activation

            2. Closing

            3. Connection

            4. Disconnection

            5. Joining

            6. Moving

              1. Lifting Object

              2. Dropping Object

              3. Swimming

              4. Controlling Vehicle

              5. Running

              6. Walking

            7. Pressing

            8. Setting

            9. Turning Single Rotary Control

        2. Attributes of Motor Process

          1. Ballistic Task

          2. Continuous Task

          3. Coordinated Task

          4. Fine Task

          5. Gross Task

          6. Repetitive Task

          7. Serial Task

          8. Static Task

      2. Perceptual Processes Element

        1. Searching For and Receiving Information

          1. Detection

            1. Detection of Nonverbal Cues

              1. Detection of Movement

            2. Detection of Verbal Cues

          2. Inspection

          3. Observation

          4. Reading

          5. Reception

          6. Scanning

          7. Surveying

        2. Identification of Objects, Actions, Events

          1. Discrimination

            1. Discrimination of Auditory Cues

              1. Discrimination of Nonverbal Cues

              2. Discrimination of Verbal Cues

            2. Discrimination of Kinetic Cues

            3. Discrimination of Tactile Cues

            4. Discrimination of Visual Cues

          2. Identification

            1. Identification of Nonverbal Cues

            2. Identification of Verbal Cues

          3. Recognition

            1. Recognition of Nonverbal Cues

            2. Recognition of Verbal Cues

    1. Attributes of Task Element

      1. Amount of Labor Required for Task Element

      2. Complexity of Task Element

      3. Degree of Response Chaining for Task Element

      4. Difficulty of Task Element

      5. Knowledge of Results of Task Element

      6. Output of Task Element

      7. Pacing of Task Element

      8. Precision of Task Element

      9. Repetitiveness of Task Element

      10. Skill Demands of Task Element

      11. Simultaneity of Responses for Task Element

      12. Task Autonomy

      13. Task Allocation

      14. Task Payoff Matrix

    2. Constraints/Limitations

      1. Time Constraints [minutes]

      2. Space Constraints [meters]

      3. Support Constraints

      4. Weapon Deployment Constraints (conventional, nuclear, chemical)

  1. Human

    1. Physical State

      1. Physical Dimensions (NASA TN-1024 Dimensions)

        1. Body Size

          1. Lengths

          2. Girths

          3. Functional Measures

        2. Body Weight

        3. Body Proportions

        4. Centers of Mass

        5. Body Build

      2. Physical Capabilities

        1. Strength

          1. Isometric

          2. Isotonic

          3. Isokinetic

          4. Isoinertial

        2. Endurance

          1. Duration

          2. Repetition

          3. Recovery

        3. Muscular Fatigue

        4. Fitness

        5. Mobility

        6. Posture

        7. Work Capacity

        8. Coordination

        9. Fatigability

          1. Physical Neural Impedance

          2. Mental Fatigability

            1. Neuropsychiatric Fatalities

          3. Sleep Deprivation

        10. Feet

          1. Foot Agility

          2. Foot Dominance (left or right)

          3. Foot Lift Strength [kilograms]

        11. Hands

          1. Hand Dominance (left or right)

          2. Hand Flexibility

          3. Grip Strength [kilograms]

        12. Voice

        13. Legs

          1. Leg Endurance

          2. Leg Lift Strength [kilograms]

        14. Arms

          1. Arm Endurance

          2. Arm Length [meters]

      3. Gender Differences

        1. Anthropometry

        2. Strength and Endurance

        3. Physiological Responses

      4. Commercial Workplace Design

        1. Office

        2. Maintenance

        3. Factory

        4. Construction

        5. Vehicles

        6. Tool Use

        7. Manual Materials Handling

      5. Military Workplace Design

        1. Design Accommodation Polices

        2. Physical Selection Standards

        3. Combat Environments

      6. Athletics

        1. Performance

        2. Training

      7. Physically Disabled

        1. Muscular

        2. Skeletal

        3. Hearing Loss

        4. Vision Impairment

      8. Environmental Effects

        1. Acceleration

        2. Vibration

        3. Comfort

        4. Temperature

        5. Altitude and Pressure

      9. Physical Surrogates

        1. Manikins

        2. Computer Models

          1. Anthropometrics Models

          2. Biomechanical Models

          3. Ergonomic Models

      10. Physiology

        1. Body Surface Area [square meters]

        2. Effective Surface Area for Evaporation [square meters]

        3. Average Skin Temperature [degrees Celsius]

        4. Water Vapor Pressure at Skin [kilopascals]

        5. Body Core Temperature [degrees Celsius]

        6. Body Needs

          1. Fluid Intake [milliliters per hour]

          2. Eating [joules]

          3. Elimination [milliliters urine and kilograms feces per day]

        7. Heart Rate [beats per minute]

        8. Blood Pressure

          1. Diastolic Pressure [kilopascals]

          2. Systolic Pressure [kilopascals]

        9. Respiration

          1. Hyperventilation

          2. Respiratory Burden

          3. Maximum Expiration Rate [cubic meters per second]

    2. Mental State

      1. Attention Span [seconds]

      2. Memory

        1. Long-Term Memory

          1. Training

            1. Type of Training

            2. Amount of Training

            3. Skill Level of Training

            4. Frequency of Training

            5. Recency of Training

        2. Short-Term Memory

          1. Number of Items Stored in Memory

      3. Personality Traits

        1. Perceived Probability of Success

        2. Leadership Traits

          1. Intelligence

          2. Self-confidence

          3. Initiative

          4. Self-knowledge

          5. Integrity

          6. Responsibility

          7. Courage

          8. Decisiveness

          9. Personality Characteristics

        3. Courage/Cowardice

        4. Machismo

        5. Will to Live

        6. Tenacity

      4. Emotions

        1. Fear

        2. Anger

        3. Frustration

        4. Hate

        5. Altruism

        6. Sadness/Grief

        7. Anxiety

        8. Patriotism

        9. Willingness to Fight

        10. Motivation

          1. Incentive

          2. Need

            1. Physiological Needs

            2. Safety

            3. Security

            4. Affiliation

            5. Esteem

            6. Self-actualization

          3. Reward Potential

            1. Perceived Value

            2. Likelihood of Qualifying

            3. Likelihood of Receipt After Qualifying

        11. Level of Responsibility

      5. Experience

        1. Success Under Duress

        2. Success with Naiveté’

        3. Understanding of Task

        4. Birth Order

        5. Combat Experience [years]

      6. Cognition

        1. Reading Level

        2. Armed Services Vocational Aptitude Test (ASVAT)

        3. Learning Skills

          1. Conditional Learning Ability

          2. Associative Learning Ability

      7. Intelligence

      8. Abilities

        1. Decision making

          1. Flexibility of Closure

        2. Detection

          1. Perceptual Speed

          2. Response Orientation

        3. Fine Manipulation

          1. Manual Dexterity

          2. Finger Dexterity

        4. Gross Manipulation

          1. Multi-limb Coordination

          2. Speed of Arm Movement

          3. Rate Control

          4. Arm Steadiness

          5. Wrist/Finger Speed

          6. Aiming

        5. Numeric Manipulation

        6. Probability Estimation

        7. Recognition

        8. Team Coordination

        9. Time Estimation

        10. Time Sharing

          1. Selective Attention

        11. Tracking

        12. Communication

        13. Space Estimation

      9. Work Schedule

        1. Days on Duty [number]

        2. Duty Hours (start and end) [times of day]

        3. Rest Periods

          1. Duration [minutes]

          2. Frequency [number per duty day]

        4. Rotation of Task

    3. Senses

      1. Type of Sense

        1. Audition

          1. Biaural Hearing

          2. Binaural Hearing

          3. Monaural Hearing

          4. Tone Perception

        2. Olfaction

        3. Taction

        4. Vision

          1. Visual Accommodation

          2. Visual Acuity

          3. Binocular Vision

          4. Color Perception

            1. Chromatic Adaptation

            2. Purkinje Shift

          5. Visual Convergence

          6. Monocular Vision

        5. Gustation

        6. Vestibular Balance

      2. Attributes of Senses

        1. Sensory Parameters

          1. Sensory Thresholds

          2. Sensory Response Spectra

          3. Sensory Discrimination

          4. Sensory Habituation

        2. Sensory Degradation

          1. Sensory Fatigue

          2. Sensory Stress

          3. Sensory Overload

          4. Sensory Conflict

    4. Health

      1. Effects of Drugs Used (prescription or over-the-counter)

        1. Type of Drug

        2. Drug Attributes

          1. Drug Dosage

          2. Number of Days Since Drug Last Taken

          3. Number of Days Drug Taken

      2. Fatigue State

      3. Injury

        1. Rash

        2. Hypothermia

          1. Frostbite

        3. Hyperthermia

          1. Sunburn

        4. Wounds

          1. Blisters

          2. Burns

          3. Hemorrhage

          4. Cuts

          5. Eye Injury

          6. Fracture

          7. Sprain

        5. Allergic Reaction

        6. Temporary Deafness

      4. Sickness

        1. Disease

          1. Dysentery

          2. Diarrhea

          3. Influenza

          4. Malaria

          5. Respiratory Infection (general)

          6. Trench foot

          7. Yellow Fever

        2. Dehydration [liters]

          1. Dehydration Resulting from Diarrhea

          2. Membrane Dehydration

          3. Perspiration

          4. Respiratory Water Loss

          5. Skin Dehydration

        3. Nausea

        4. Pain

        5. Environmental Stressor Effects

          1. Motion Sickness

          2. Radiation Sickness

      5. Mental Illness

        1. Illusion

        2. Hallucination

        3. Depression

        4. Battle Fatigue

      6. Poor Nutrition

      7. Fitness

        1. Dynamic Flexibility

        2. Dynamic Strength

        3. Equilibrium

        4. Explosive Strength

        5. Extent of Flexibility

        6. Gross Body Coordination

        7. Stamina

        8. Static Strength

        9. Trunk Strength

    5. Demographics

      1. Age [years]

      2. Gender

        1. Female

        2. Male

      3. Handedness

        1. Left

        2. Right

        3. Ambidextrous

      4. Birthplace [country/state/province]

      5. Father’s Birthplace [country/state/province]

      6. Mother’s Birthplace [country/state/province]

      7. Ethnic Group

        1. Black

        2. Caucasian

        3. Hispanic

        4. Oriental

  2. System

    1. Machine

      1. Vehicle

        1. Aircraft

          1. Fixed Wing (MIL-STD-203)

          2. Rotary Wing (MIL-STD-250)

          3. Airship

        2. Motorized Ground Vehicle

          1. Car

          2. Halftrack

          3. Jeep

          4. Tank

          5. Truck

          6. Other Armored Vehicles

            1. Wheeled Vehicle

            2. Tracked Vehicle

        3. Ship

          1. Surface Ship

          2. Hovercraft

          3. Hydrofoil

          4. Submarine

        4. Spacecraft

        5. Maintenance Status of Vehicle

        6. Operability of Vehicle

      2. Frame

        1. Structure (JTCG)

        2. Control System (JTCG)

          1. Hydraulic Control

          2. Electronic Control

          3. Automatic Control

        3. Fluid Power/Pneumatic (JTCG)

        4. Armor (JTCG)

        5. Electrical Power/Distribution (JTCG)

        6. Propulsion Unit - Propulsion/Power (JTCG)

      3. Engine

        1. Fuel (JTCG)

        2. Power Trains (JTCG)

      4. Communications (MIL-STD-881)

      5. Navigation/Guidance (MIL-STD-881)

      6. Armament

        1. Fire Control

        2. Weapons Delivery Equipment

        3. Auxiliary Armament/Weapons Delivery Equipment

      7. Auxiliary Equipment (MIL-STD-881)

        1. Penetration Aids

        2. Reconnaissance Equipment

        3. Central Integrated Checkout

      8. Avionics/Sensors (JTCG)

        1. Radar

        2. Sonar

        3. Electro-optical

        4. Antisubmarine Warfare

        5. Damage Suppression

          1. Active

            1. Ballistically Resistant

            2. Ballistically Tolerant

            3. Component Elimination

            4. Component Shielding

          2. Passive

            1. Ballistic Resistance

            2. Damage Tolerance

            3. Delayed Failure

            4. Fail-Safe Response

            5. Five and Explosive Suppression

            6. Leakage Suppression

          3. Signature

            1. Aural

            2. Infrared

            3. Radar

            4. Visual

      9. Crew System

        1. Crew Escape (DH2-2; DH2-8)

          1. Escape (DH2-2; DH2-8)

            1. In-flight (DH2-2; DH208)

              1. Assisted (DH2-2; DH2-8)

                1. Ejection Seat (DH2-8)

                2. Extraction (DH2-8)

                3. Module (DH2-8)

              2. Unassisted (DH-2; DH2-8)

                1. Manual Bailout (DH2-8)

            2. Surface (DH2-8)

              1. Land (DH2-8)

                1. Rope Slides (DH2-2)

                2. Pole Slides (DH2-2)

                3. Evacuation Slides (DH2-2)

              2. Water (DH2-8)

                1. Ditching Assists (DH2-2)

                2. Life boats

          2. Descent (DH2-8)

            1. Free (DH2-8)

              1. Parachute (DH2-8)

            2. Discretionary (DH2-8)

              1. Balloon (DH2-8)

            3. Controlled (DH2-8)

              1. Rotary Wing (DH2-8)

              2. Fixed Wing (DH2-8)

              3. Flexible Wing (DH2-8)

              4. Controllable Parachute (DH2-8)

        2. Crew Station (JTCG)

          1. Control Device

            1. Type

              1. Rotary Control

                1. Knobs (potentiometer or valve)

                2. Wheel

                  1. Steering

                  2. Thumb

                3. Hand Crank

              2. Linear Controls

                1. Pushbuttons

                2. Toggle Switch

                3. Rocker Switch

                4. Pedals

                5. Levers

                6. Rotary Selector Switch

              3. Joystick-type Controls

                1. Control Stick

                  1. Movable

                  2. Pressure Sensitive

                2. Joystick

              4. Trackball Control

              5. Touch-Sensitive Control

                1. Keyboard

                  1. Membrane

                  2. Button

                2. Touch Panel (capacitive or other nonmembrane)

                3. Touch Screen

              6. Sound-Actuated Control

                1. Voice-Activated Control

              7. Virtual Control

              8. Motion-Actuated Control

                1. Mouse

                2. Eye Tracker

              9. Dead-Man Controls

              10. Light Pen

            2. Actuation

              1. Actuation Force

              2. Angular Range of Control [degrees-linear, rotational, or conical]

              3. Direction of Actuation

              4. Design to Prevent Inadvertent Actuation

                1. Control Separation Distance

                2. Guards

                3. Covers

          2. 4.1.9.2..12.4.4 Multiple Actuation Steps

              1. Number of Control Positions

              2. Detents

              3. Actuation Feedback

                1. Tactile

                2. Visual

                3. Aural

              4. Discrete/Continuous

            1. Size/Shape

              1. Standardized Shapes

              2. Nonstandard Shapes

            2. Location

            3. Color

            4. Labeling

            5. Implementation Strategy

              1. Backup Required

              2. By Consent

              3. Dual/Blended Input

              4. Management by Exception

              5. Manual

              6. Override Required

            6. Control Position Feedback

              1. Tactile

              2. Visual

              3. Aural

            7. Mode of Operation

              1. Continuous Action

              2. Dual Action

              3. Single Action

            8. Response Time

              1. Initial

              2. Update Rate

            9. Type of Control Damping

              1. Aural

              2. Tactile

              3. Visual

          3. Control Panel

          4. Type of Display Device

            1. Auditory

              1. Electromechanical Display

                1. Bell

                2. Buzzer

                3. Horn

                4. Siren

            2. Visual

              1. Cathode Ray Tube

                1. Raster

                2. Stroke

                3. Hybrid

                4. Etched/Permanent

                5. Virtual

              2. Electronic Display

                1. Electronic Tone/Signal

                2. Recorded Signal Direction

              3. Indicator Light (transilluminated)

                1. Lighted Pushbutton Display

                2. Multiple-Status Illuminated Pushbutton

                3. Single-Status Illuminated Pushbutton

              4. Light-Emitting Diode (LED)

              5. Liquid-Crystal Display (LCD)

              6. Mechanical Display (non-pointer gauge)

              7. Projection Device

              8. Random-Access Digital Readout

                1. Back-Lighted Belt Display

                2. Cold-Cathode (e.g., vacuum fluorescent) Tube

                3. Edge-Lighted Plate

                4. LED Display

                5. Liquid-Crystal Readout (LCR)

                6. Projection Readout

              9. Mechanical Scalar Display

                1. Fixed-Pointer, Moving-Scale Display

                2. Moving-Pointer, Fixed-Scale Display

              10. Sequential-Access Digital Readout

                1. Electromechanical Drum Counter

                2. Flag Counter

              11. Status Display

                1. Large-Screen Display

                2. Map Display

                3. Matrix Board

                4. Plot Board

                5. Projected Display

              12. Hard-Copy Readout Device

                1. Plotter

                2. Printer

                3. Recorder

            3. Attributes of Display

              1. Display Size

                1. Display Diameter [centimeters]

                2. Display Height [centimeters]

                3. Display Width [centimeters]

                4. Effective Display Surface Dimensions

                5. Number of Screens

              2. Display Viewing Condition

                1. Collimation of Display

                2. Distance of Display from Operator [centimeters]

                3. Magnification of Display

                4. Display Ocular Design

                  1. Binocular Display

                  2. Dichoptic Display

                  3. Monocular Left-Eye Display

                  4. Monocular Right-Eye Display

                5. Display Resolution

                6. Display Visual Angle / Field of View [degrees]

                  1. Parallax

                7. Display Color

                8. Timing

                  1. Quickening

                  2. Real Time

                  3. Slowing

                9. Flicker

                  1. Display Media Characteristics

                10. Hues/wavelengths

                11. Luminance Rise Time

                12. Luminance Buildup

                13. Emission Characteristics

                  1. Display Refresh Rate

                  2. Information Update Rate

                  3. Interlacing Characteristics

                  4. Color Saturation

                  5. Distortion

                  6. Granularity

                  7. Acutance

                  8. Duration

                  9. After Images

                14. Readability Enhancements

                  1. Glare Screens

                  2. Glare Shields

                  3. Light Absorbing Material

                  4. Dichroic Filters

                  5. Optical Coatings

                  6. Wavelength Filters

                15. Display Accuracy

                  1. Markings Accuracy

                  2. Interpolation Accuracy

                  3. Scale Linearity

                  4. Numbering Scheme

                  5. Scale-to-Redline Distance

                  6. Scale Factor

                  7. Number of Graduation Marks

                16. Implementation Strategy

                  1. Assistant

                  2. Associate

                  3. Autonomous

                  4. Memory Jogger

                  5. Prompter/Plodder

            4. Alphanumeric

              1. Front Style

              2. Symbol Height

              3. Height-to-Width Ratio

              4. Stroke Width

              5. Spacing

                1. Nominal Distance

                2. Equal Spacing

                3. Proportional Spacing

              6. Justification

                1. Left

                2. Right

                3. Block

                4. Centered

            5. Pictorial

              1. Dimensional Correspondence

                1. Equal (one-to-one, e.g., 1D as 1D, 2D as 2D, etc.)

                2. Expanded (e.g., 1D information presented as 2D)

                3. Condensed (e.g., 2D information presented as 1D)

            6. Auditory Displays

              1. Signal Type

                1. Simple Tones

                2. Complex/Multiple Tones

                3. Speech

              2. Pitch Frequency(ies)

              3. Signal Intensity

              4. Signal Repeat Rate

              5. Audibility

                1. Alerting Capability

                2. Discriminability

                3. Compatibility

                4. Masking/Localization Techniques

            7. Content

              1. Format

                1. Screen Layout and Structuring

                2. Highlighting

                3. Data/Information Presentation

                  1. Format Complexity

                  2. Data/Information Quantity

                  3. Data/Information Relevancy

                4. Interframe Considerations

                5. Grouping

              2. Messages

              3. Labeling

              4. Abbreviations

              5. Scaling

              6. Coding

                1. Shape Coding

                2. Color/Shade Coding

                3. Display Rate Coding

            8. Display Dynamics

              1. Prompting and Structuring

              2. Timing

                1. Real Time

                2. Quickening

                3. Slowing

              3. Response Time

                1. Initial Response Time

                2. Update Rate

            9. Legibility

              1. Contrast

                1. Object Color Contrast/Extent

                  1. Hue

                  2. Saturation

                  3. Brightness

                2. Background Color Contrast/Extent

                  1. Hue

                  2. Saturation

                  3. Brightness

              2. Point Spread/Blurring

              3. Symbol Resolution

              4. Symbol Spacing

              5. Display Filter Characteristics

                1. Polarization

                2. Reflectivity/Glare

            10. Clutter

            11. Display Size

              1. Physical Dimensions

              2. Effective Display Surface

              3. Number of Screens/Windows

              4. Scene Magnification Factor

            12. Fatigue Inducements

              1. Flicker

              2. Radiant Energy

              3. Luminance Rise Time

              4. Luminance Decay Time

              5. Luminance Buildup

              6. Display Update Rate

              7. Interlacing

              8. Color Saturation

              9. Distortion

              10. Viewing Distance

              11. Viewing Duration

            13. Information

              1. Scales

                1. Linear

                2. Logarithmic/Exponential

              2. Parallax

              3. Markings Accuracy

              4. Interpolation/Extrapolation Accuracy

                1. Numbering Scheme

          5. 4.1..9.2.3.12.4.2 Scale-to-Redline Distance

                1. Scale Factor

                2. Number of Graduation Marks

            1. Color/Shade Specification

              1. Actual

                1. Initial (new)

                2. Degradation Over Time

              2. Subjective

                1. User Name

                2. Purkinje Shift

                3. Chromatic Adaptation

          6. Control/Display Interaction

            1. Control Implementation Strategies

              1. Manual Controls (crew initiation, no system modification)

              2. Dual/Blended Input Controls (crew initiated, system modified, i.e., fly-by-wire FCS)

              3. By Consent Controls (system initiated, crew consent required to execute)

              4. Override Required Controls (system initiated, crew override optional to execute)

              5. Management-by-Exception Controls (system autonomous, crew override)

              6. Backup/Secondary Controls

            2. Display Implementation Strategies

              1. Memory Jogger Display (data only)

              2. Prompter/Prodder Display (prompt crew)

              3. Assistance Display (format tailored by crew)

              4. Associate Display (format tailored by system)

            3. Control/Display Relationships

              1. Control Movement/Display Movement

              2. Control Position/Display Position

              3. Control Input/Display Output Delay

        3. Passenger/Cargo Stations (JTCG)

          1. Same categories as 4.1.9.2

        4. Aeromedical Evacuation (DH2-2)

    2. Weapon

      1. Type of Weapon

        1. Small-Caliber Gun

        2. Large-Caliber Gun

        3. Missiles/Rockets

        4. Bombs

        5. Torpedoes

      2. Attributes of Weapon

        1. Fire Power (payload)

        2. Firing Characteristics

          1. Rate

          2. Reload Capability

          3. Visual Indication

            1. Flame

            2. Flash

        3. Guidance

          1. Accuracy

          2. Backup Guidance Modes

        4. Lethality

          1. Aspect/Range Limitations

            1. Launcher Limitations

            2. Terrain Masking

            3. Threat Force Distribution

            4. Tracking Accuracy

          2. Range

          3. Tracking Algorithms

          4. Tracking Rate

        5. Maintenance Downtime

        6. Resupply Time

        7. Tracking Mechanism

          1. Type of Tracking Mechanism

            1. Electro-optical

            2. Infrared

            3. Radar

          2. Attributes of Tracking Mechanism

        8. Weapon/Vehicle Interaction

    3. Computer

      1. Processing Capability

      2. Portability

      3. Operating Limits

      4. Software

        1. Software Usability

          1. Aspects Affecting Adaptivity of System

            1. Common User Errors

            2. User Characteristics

            3. User Performance

            4. User Goals

            5. Environment

          2. Methods of Adaptation Onset

            1. On-Request Onset

            2. Prompted Onset

            3. Automatic Onset

      5. Human-Computer Interface

      6. Information Transfer Capabilities

        1. Direct Connection

        2. Modem/Telephone

        3. Satellite

        4. Radio

    4. Farm

    5. Factory

    6. Hospital

    7. Household

    8. Office

    9. Attributes

      1. Mobility

      2. Range

      3. Payload

      4. Support Requirements

      5. Damage Suppression

        1. Vulnerability (MIL-STD-2069)

          1. Signature

            1. Aural/Acoustic

            2. Infrared

            3. Radar

            4. Electro-optical

            5. Visual

        2. Survivability (MIL-STD-2069)

        3. Failure modes

      6. Maintenance Requirements

      7. Operability Requirements

        1. Operator Training Level

    10. Stimulus

      1. Type of Stimulus

        1. Auditory Stimulus

          1. Complex Sounds (Not Speech)

          2. Speech

            1. Spoken Words, Including Inflection

          3. Tones

        2. Kinesthetic Stimulus

        3. Visual Stimulus

          1. Alphanumeric Presentation

          2. Graph

          3. Gestures and Hand Signals

          4. Pictorial Stimulus

            1. Dimensional Condensation

            2. Dimensional Expansion

            3. One-to-One Dimensional Correspondence

              1. Holography

              2. Stereoscopy

        4. Tactile Stimulus

      2. Attributes of Stimulus

        1. Background of Stimulus

          1. Complexity of Stimulus

          2. Contrast of Stimulus

            1. Color Contrast

              1. Perceived Symbol Hue

              2. Perceived Background Hue

              3. Perceived Symbol Saturation

              4. Perceived Symbol Brightness

              5. Perceived Background Brightness

            2. Simultaneous Contrast

            3. Point Spread Function/Blurring

            4. Symbol Resolution

            5. Symbol Spacing

            6. Display Filtering Characteristics

          3. Clutter

            1. Identification

            2. Reduction

        2. Characteristics of Stimulus

          1. Alphanumeric Presentation

            1. Font Style

            2. Height-to-Width Ratio

            3. Justification

              1. Block Justified

              2. Centered

              3. Left Justified

              4. Right Justified

            4. Spacing

              1. Equal Spacing

              2. Nominal Distance

              3. Proportional Spacing

            5. Stroke Width

          2. Changing/Moving Stimulus

          3. Coded Stimulus

            1. Shape

          4. Conspicuity of Stimulus

          5. Raw Stimulus

          6. Relevancy

          7. Static Stimulus

          8. Color of Stimulus

          9. Size/Amplitude of Stimulus

        3. Duration of Stimulus [minutes]

          1. Continuous Event

          2. Intermittent Event

            1. Probability of Occurrence of Event [percent]

            2. Rate of Occurrence of Event [hertz]

          3. Single Occurrence of Event [time of day]

        4. Information Presented by Stimulus

          1. Content of Stimulus

          2. Qualitative Description of Stimulus

          3. Quantitative Description of Stimulus

            1. Order (Sequency)

            2. Timing

          4. Directly Viewed Event

          5. Displayed Material

          6. Written Material

          7. Stacking

            1. On-line Interaction

            2. Stack Access

            3. Stack Information Content

            4. Stack Level

        5. Location of Stimulus on Display

          1. Center Position

          2. Lower-Left Position

          3. Lower-Middle Position

          4. Lower-Right Position

          5. Middle-Left Position

          6. Middle-Right Position

          7. Upper-Left Position

          8. Upper-Middle Position

          9. Upper-Right Position

          10. Predictability of Location

        6. Number of Stimuli

          1. Multiple Stimuli

          2. Single Stimulus

        7. Range of Values of Stimulus

        8. Relative Movement of Stimulus

          1. Observer and Target at Rest

          2. Observer and Target in Motion

          3. Observer in Motion, Target at Rest

          4. Observer at Rest, Target in Motion

        9. Position of Observer Relative to Stimulus

          1. Horizontal Range of Stimulus [kilometers]

          2. Offset Distance of Stimulus [kilometers]

          3. Position of Stimulus

            1. Air-to-Air Combat

            2. Air-to-Ground Combat

            3. At a Display

            4. Ground-to-Air Combat

            5. Ground-to-Ground Combat

        10. Size/Amplitude of Stimulus

        11. Discrimination Ability for Stimulus

    11. System Characteristics

      1. General System Variables

        1. Requirements and Constraints Imposed on System

        2. Resources Required by System

        3. Nature of System’s Internal Processes

        4. Nature, Number, and Specificity of System Goals

        5. Structural and Organizational Characteristics of System

          1. Size of System

          2. Number of Subsystems and Units

          3. Communication Channels

          4. Hierarchical Levels

          5. Amount of Feedback

        6. Degree of System Automation and Interactive Computerization

        7. Nature of Environment in Which System Functions

        8. System Attributes

          1. Complexity of System

          2. Determinacy of System

          3. Flexibility of System

          4. Reliability of System

          5. Sensitivity of System

          6. Vulnerability of System

        9. Number and Type of System Interdependencies

        10. Nature of System’s Terminal Output(s)

      2. General Behavioral Variables

        1. Number of Personnel Involved and How Arranged

          1. Individuals

          2. Team

        2. Personnel Aptitude for Tasks Performed

        3. Amount and Appropriateness of Training

        4. Amount of Personnel Experience/Skills

        5. Number and Type of Interdependencies Within Team

        6. Motivational Variables

          1. Reward

          2. Punishment

        7. Requirements and Constraints Imposed on Personnel

        8. Physical Environment for Personnel Performance

        9. Factors Leading to Performance Deterioration

          1. Fatigue

          2. Stress

      3. System Variables in Detail

        1. System Type

          1. Communication System

            1. Radio System (broadcast radio stations and networks)

            2. Television System (broadcast and cable TV stations, head ends, and networks)

            3. Telephone System (switching facilities and networks)

            4. Publishing System (e.g., newspaper)

          2. Environmental Facility

            1. Park

            2. Beach

          3. Entertainment Facility

            1. Theatre

            2. Fair

            3. Museum

          4. Habitation Facility

            1. Hotel, Motel, or Barrack

            2. Office Building

            3. School, College, or University

          5. Health Provider Facility

            1. Hospital

            2. Clinic or Medical Center

          6. Information Collection/Assessment Facility (e.g., Combat Information Center)

          7. Judicial Facility (e.g., law court)

          8. Legislative Facility (i.e., law making)

          9. Management Organization

            1. Company Directors

            2. Stock Exchange Governors

            3. Brokers

          10. Marketing Organization

            1. Sales Organization

            2. Advertising Organization

          11. Military Organizational Group

            1. Theater Army

            2. Corps

            3. Division

            4. Brigade

            5. Battalion

            6. Company

            7. Platoon

            8. Squad

          12. Production Facility

            1. Factory

            2. Steel Mill

            3. Mining Operation

            4. Fishing Operation (fleets, hatcheries, fish farms)

            5. Farm, Orchard, or Winery

          13. Product Distribution Facility

            1. Supermarket

            2. Department Store

          14. Product Maintenance Facility (e.g., repair shop)

          15. Protection Facility

            1. Police Station

            2. Fire House

          16. Support Facility

            1. Warehouse

            2. Word Processing Center

          17. Training Facility

            1. School

            2. University or College

          18. Transportation Facility

            1. Truck or Rail Terminal

            2. Harbor

            3. Airport

          19. Weapon System (e.g., fighter plane)

          20. Welfare Facility

            1. Juvenile Home

            2. Welfare Agency

        2. System Functions

          1. Analysis

            1. Commercial Information Processing

            2. Problem Solving

          2. Combat Information Processing

          3. Communication

          4. Computation

            1. Money Handling

            2. Information Handling

          5. Control (e.g., law enforcement)

          6. Dispatching

            1. Personnel Dispatching (e.g., police, service)

            2. Object Dispatching (e.g., taxi)

          7. Entertainment

            1. Acting

            2. Singing

            3. Dancing

          8. Fabrication

            1. Building Construction

            2. Construction

          9. Housing

            1. Human Housing

            2. Animal Housing (e.g., stable, barn)

          10. House holding

            1. Food Preparation

            2. Cleaning

          11. Inspection (as in quality control)

          12. Maintenance

            1. Preventive Maintenance

            2. Corrective Maintenance

          13. Management (as in organization)

          14. Processing

            1. Product Processing

            2. Document Processing

            3. Information Processing

          15. Food Processing

            1. Produce Processing

            2. Mineral Processing

            3. Animal Processing

          16. Rescuing (as in firefighting)

          17. Selling/Distributing (e.g., products)

          18. Service Providing (e.g., secretarial)

          19. Studying

            1. Scientific/Engineering Research

            2. Conduct of Research

          20. Teaching / Training

          21. Transporting

            1. Transporting of Humans

            2. Transporting of Products

        3. System Structure

          1. System Size

            1. Large System

            2. Small System

            3. Intermediate System

          2. Number of Units and Subsystems

          3. Number of Personnel in System

          4. System Organization

            1. Vertical Organization

            2. Lateral Organization

            3. Centralized Organization

            4. Decentralized Organization

              1. Communications Channels

                1. Number of Communications Channels

                2. Type of Communications Channels (internal/external to system)

              2. Organization Attributes

                1. Complexity of Organization

                2. Determinacy of Organization

                3. Flexibility of Organization

                4. Reliability of Organization

                5. Sensitivity of Organization

                6. Vulnerability of Organization

              3. Method of System Control

                1. Autocratic Control

                2. Democratic Control

                3. Oligarchic Control

              4. Number of System Hierarchical Levels

              5. System Goals

                1. Single Goal

                2. Multiple Goals

                3. Specific Goal(s)

                4. General Goal(s)

              6. Internal Processes of System

                1. Repetitive Processes

                2. Nonrepetitive Processes

                3. Fixed/Proceduralized Processes

                4. Flexible/Nonproceduralized Processes

                5. Automated Processes

                6. Semi-automated Processes

                7. Mostly Manual Processes

                8. Computerized Processes

              7. System Operations

                1. Continuous Operations

                2. Intermittent Operations

                3. Short Operations

                4. Long Operations

                5. Operations Performed Prior to Mission

                6. Operations Performed Subsequent to Mission

                7. Operations Performed Early in Mission

                8. Operations Performed Late in Mission

              8. Unit/Subsystem Role

                1. Performance of Primary Mission

                2. Provision of System Support

              9. Unit/Subsystem Boundaries (division of responsibility)

                1. Well-Defined Boundaries

                2. Weakly Defined Boundaries

        4. 4.11.3.3.4.4.10 Unit/Subsystem Dependency (ability to function regardless of other units or subsystem performance)

                1. Completely Dependent Unit/Subsystem

                2. Partially Dependent Unit/Subsystem

                3. Wholly Independent Unit/Subsystem

        5. System Outputs

          1. System Output Type

            1. Fabricated Products

            2. Raw Materials

              1. Food

              2. Minerals

            3. Repaired Devices

            4. Geographic Movement (as in transportation)

            5. Communications

              1. Messages

              2. Books

              3. Newspapers

              4. Entertainment Products

            6. Weapons Delivery Products

              1. Bombs

              2. Rifle Fire

            7. Decisions

              1. Legislation

              2. Buying Stocks

            8. Entertainment

              1. Music

              2. Television

              3. Plays

              4. Operas, Operettas

            9. Services

              1. Selling

              2. Word Processing

              3. Medical Treatment

            10. Training Outputs (e.g., skills)

          2. System Output Number

            1. Single Output

            2. Multiple Outputs

            3. Fixed Output(s)

            4. Variable Output(s)

          3. System Output Frequency

            1. Continuous Output

            2. Intermittent Output

            3. Infrequent Output

          4. System Output Characteristics

            1. Visible Output

            2. Invisible Output

            3. Abstract Output

            4. Concrete Output

          5. System Output Source

            1. Equipment

            2. Personnel

            3. Equipment and Personnel Interactively

            4. Equipment and Personnel Non-interactively

          6. System Output Effects

            1. Change in Other Systems and/or Environment

            2. Change in Own System

            3. Increase/Decrease in Inventory of Objects

            4. Increase/Decrease in Inventory of Personnel (as in combat)

            5. Change in Personnel Condition (as in training)

            6. Change in Function (e.g., repair of equipment)

            7. User Response (e.g., pleasure)

            8. Change in Information Availability

            9. No Effect on Output

            10. Effect on Output Unknown

        6. System Environment

          1. Type of System Environment

            1. Physical Environment

              1. Air

              2. Water

              3. Temperature

              4. Noise

            2. Psychological Environment (e.g., degree of cooperation in team)

          2. Physical Locus of Environment

            1. Locus Within Own System (e.g., space available)

            2. Locus Outside Own System

              1. Locus in Air

              2. Locus in Climate

              3. Locus in Ocean

          3. Personnel Perception of Environment

            1. Number of Other Systems in Environment

            2. Environment Threatening/Nonthreatening

            3. Environmental Stability

              1. Environment Changing Rapidly

              2. Environment Changing Slowly

          4. Environmental Effect Consequences

            1. Effect Known Well, Known Slightly, Unknown

            2. No or Almost No Effect

            3. Slight to Moderate Effect

            4. Great Effect

        7. System Inputs

          1. Type of Input

            1. Physical Input

              1. Written Message

              2. Illuminated Display

            2. Behavioral Input (e.g., direct verbal order)

            3. Combined Physical/Behavioral Input (e.g., verbal message over facsimile machine)

          2. Frequency of Input

            1. Continuous Input

            2. Intermittent/Variable Input

            3. One-Time Input (nonrecurring)

          3. Input Characteristics

            1. Repetitive Input

            2. Nonrepetitive Input

            3. Formal Regular Input (e.g., alphanumeric clear text)

            4. Informal Irregular Input (e.g., radar pattern)

            5. Input Meaning Unequivocal (requiring no analysis)

            6. Input Ambiguous (requiring analysis and interpretation)

            7. Strong Input

            8. Weak Input (only slightly above threshold)

          4. Source of Input

            1. Multiple Sources of Input (requiring coordination)

            2. Single Source of Input

            3. Input Within Own System (as in command from bridge)

            4. Input Within Another System (e.g., message from base)

            5. Input From Environment (e.g., clouds indicating approaching storm)

        8. System Communication

          1. Communication Type

            1. Communication Provides Information

            2. Communication Requests Information or Direction

            3. Communication Commands

            4. Communication Asks Question

            5. Communication Coordinates Team Activity

          2. Communication Frequency

            1. Continuous Communication

            2. Variable Frequent Communication

            3. Variable Infrequent Communication

          3. Source/Direction of Communication

            1. Communication Within Own System (any level)

            2. Communication to/from Another System

            3. Communication Up the Hierarchy

            4. Communication Down the Hierarchy

            5. Lateral Communication (one unit to another on the same level)

        9. System Feedback

          1. Feedback Type

            1. Oral Feedback

            2. Visual Feedback

            3. Written Feedback

          2. Feedback Reference (concerns performance by or relative to)

            1. Individual Reference

            2. Team Reference

            3. Subsystem Reference

            4. Unit Reference

            5. Own System Reference

            6. Other System Reference

            7. Physical Environment

            8. Perceived External Environment

          3. Feedback Attributes

            1. Specific Feedback

            2. General Feedback

            3. Rewarding Feedback

            4. Neutral Feedback (information only)

            5. Negative Feedback

            6. Immediate Feedback

            7. Delayed Feedback

          4. Feedback Frequency

            1. Continuous Feedback

            2. Intermittent Feedback

            3. Very Infrequent Feedback

    12. System Response

      1. Number of Output Units

      2. Duration for Which an Output Must Be Maintained

      3. Number of Elements per Output Unit

      4. Workload

      5. Difficulty of Goal Attainment

      6. Precision of Responses

      7. Response Rate

      8. Simultaneity of Responses

      9. Degree of Muscular Effort Involved

      10. Number of Procedural Steps

      11. Dependency of Procedural Steps

      12. Adherence to Procedures

      13. Procedural Complexity

      14. Variability of Stimulus Location

      15. Stimulus or Stimulus-Complex Duration

      16. Regularity of Stimulus Occurrence

      17. Operator Control of Stimulus

      18. Operator Control of Response

      19. Reaction-Time/Feedback-Lag Relationship

      20. Feedback

      21. Decision Making

      22. End-User Involvement During System Design

      23. Measure of Performance

        1. Response Time

        2. Response Accuracy

    13. System Failure Modes

      1. Assumptions

      2. Boundary Conditions

      3. Ground Rules

      4. Recovery Procedures

      5. Severity Classification

        1. Error Management

        2. Input Sequences

        3. System Configuration

        4. User Adjusted Values

        5. User Input

  3. Equipment

    1. Personal Systems/Life Support (DH2-8)

      1. Oxygen Systems

        1. Primary (DH2-8)

        2. Emergency (DH2-8)

        3. Portable (DH2-8)

      2. Environmental Control (JTCG)

        1. Air Conditioning (DH2-8)

        2. Pressurization (DH2-8)

        3. Anti-G (DH2-8)

      3. Accommodations (DH2-8)

        1. Ejection Seat Cushions/Coverings (DH2-8)

        2. Non-ejection Seat Cushions/Coverings (DH2-8)

        3. Restraint (DH2-8)

        4. Rest Facilities (DH2-8)

        5. Rest Facilities (DH2-8)

        6. Communication Services (DH2-8)

        7. Physical Characteristics

          1. Functional Reach

            1. Reach Zone 1

            2. Reach Zone 2

            3. Reach Zone 3

            4. Fingertip Reach

            5. Grip Reach

            6. Leg Reach

      4. Visual Fields

            1. Field of Vision

            2. Field of Regard

            3. Instantaneous Field of View

              1. Foveal Vision

              2. Stereo Vision

              3. Fixation Vision

              4. Peripheral Vision

          1. Vision Zones

            1. Primary

            2. Secondary

          2. Design Points

            1. Design Eye Point

            2. Eye Position Box

            3. Vision Plot

          3. External Vision

          4. Internal Vision

            1. Requirements

              1. Displays

              2. Control Settings

              3. Annunciators

                1. Warning

                2. Caution

                3. Advisory

            2. Obstructions

              1. Personal Equipment

              2. Body Parts

              3. Controls

              4. Protrusions/Panel

        1. Personal Services (DH2-8)

      5. Armor (JTCG)

        1. Personal Armor (DH2-8)

        2. Seat (DH2-8)

        3. Thermal Radiation Protection (DH2-8)

      6. Sustenance and Relief (DH2-8)

        1. Food Storage (DH2-8)

        2. Galley Services (DH2-8)

        3. Relief Facilities (DH2-8)

        4. Lavatory Facilities (DH2-8)

      7. Clothing and Accessories (DH2-8)

        1. Headgear (DH2-8)

        2. Footgear (DH2-8)

        3. Hand gear (DH2-8)

        4. Body Covering (DH2-8)

        5. Specialized Clothing (DH2-8)

          1. Type of Clothing

            1. Shorts

            2. Fatigues

              1. Desert Camouflage Clothing

              2. Desert Tan Clothing

              3. Tropical Camouflage Clothing

              4. Tropical Fatigues

              5. Utility Fatigues

            3. Protective Suit

              1. Aviator’s Suit

              2. Firefighter’s Suit

              3. Fuel Handler’s Suit

            4. Mission Oriented Protection Procedure (MOPP)

              1. MOPP I

              2. MOPP II

              3. MOPP III

              4. MOPP IV

            5. Footwear

            6. Head Gear

              1. Night Visor Goggles

              2. Tinted Visors/Hoods

                1. Chemical Defense Equipment Filtered Wavelengths

                2. Laser Protection Equipment Filtered Wavelengths

                3. Sun Visor Filtered Wavelengths

            7. Hand wear

          2. Attributes of Clothing

            1. Clothing Weight [kilograms]

            2. Backpack Weight [kilograms]

            3. Total Insulation Including Air Layer and Intrinsic Clothing

            4. Permeability Index

        6. Personal Accessories (DH2-8)

        7. Night Vision Goggles

      8. Fire Protection and Prevention (DH2-8)

        1. Fire Resistant Fuel Systems (DH2-8)

        2. Fire Resistant Crew Station (DH2-8)

        3. Fire Resistant Clothing (DH2-8)

    2. Requirements

    3. Logistics

    4. Input/Output

    5. Seat

      1. Seat-Back Angle

      2. Vertical Seat Height

      3. Vertical Height of the Seat Reference Point Loci Above the Heel Rest Line

      4. Neutral Seat Referent Point

      5. Seat Reference Point Locus of Seat Adjustment

        1. Horizontal Adjustment

        2. Vertical Adjustment

      6. Heel Rest and Heel Rest Line

  4. Social Factors

    1. Culture

      1. Population

        1. Group Identity

        2. Ethnic Mix

        3. Gender Mix

      2. Language

        1. Communication Within Organization

        2. Communication Outside Organization

      3. Psychology

        1. Cohesion

          1. Coordination

          2. Involvement

          3. Planning

          4. Communication

          5. Movement

          6. Concealment

          7. Shared Tasks

          8. Perseverance

        2. Leadership

        3. Morale / Group Climate

        4. Dominance

        5. Resistance

        6. Friction

        7. Uncertainty

      4. Religion

        1. Buddhist

        2. Catholic

        3. Hindu

        4. Jewish

        5. Moslem

        6. Protestant

        7. Other

    2. Politics

      1. Government

        1. Democracy

        2. Dictatorship

        3. Monarchy

        4. Socialism

    3. Economics

      1. Science and Technology

      2. Industry

    4. Resources

      1. Manpower

        1. Team Training

        2. Operating Procedures

          1. Task Allocation

          2. Doctrine

            1. Procedures

            2. Techniques

            3. Tactics

          3. Instruction

          4. Cross Training

        3. Personnel Rotation

        4. Dispersion

        5. Defensive Posture

      2. Material

        1. Availability of Material

        2. Shared Material

        3. Durability of Material

        4. Reconstitutability of Material

      3. Data

      4. Documentation

    5. Group Characteristics

      1. Group Size

      2. Group Cohesiveness

        1. Encouraging Attitude

        2. Gatekeeping Attitude

        3. Harmonizing Attitude

        4. Compromising Attitude

        5. Standard Setting for Attitude

        6. Testing Attitude

      3. Intra- and Inter-group Competition and Cooperation

      4. Group Communication Type

      5. Standard Communication Net

        1. Linear Net

        2. Circular Net

        3. Wheel Net

        4. Star Net

        5. Honeycomb Structure

        6. Hierarchical Net

        7. Multi-Connection Net

      6. Homogeneity/Heterogeneity in Personality and Attitudes

      7. Homogeneity/Heterogeneity in Ability

      8. Power Distribution Within the Group

      9. Group Training

      10. Roles

        1. Task-oriented Roles

          1. Seeking Information or Opinion

          2. Giving Information or Opinion

          3. Clarification

          4. Summarization

          5. Consensus Testing

          6. Elaboration

          7. Initiation

      11. Type of Authority

        1. Physical Intimidation

        2. Legal Status

        3. Organizational Position

        4. Control of Information

        5. Knowledge of Subject

        6. Personality Characteristics

      12. Decision making

        1. Autocratic Attitude

        2. Blackball Attitude

        3. Majority-Rule Attitude

        4. Consensus Attitude

    6. Confinement

    7. Isolation

    8. Customs

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