Part 4 Product Definition
16. Product Function
Global Functions Local Functions Description Methods
17. Mechanical Construction
Aesthetics Dimensions Structural Composition Physically Disabled User Requirements User Interface Ergonomics Accessibility Mounting Connectivity Rapid Prototyping
18. Environmental Requirements
Environmental Stages Threats General Robustness Climatic General Environment
19. Energy
Replenishment Consumption Supply Variations
20. Communication Requirements
Communication Applications Physical Network Connection Network Access And Control Communication Service Levels
