Model-Based Systems Engineering with GENESYS

Approaches to Assigning Constraint Requirements

Each level of Component Hierarchy has separate Requirements

Relate each Requirement to all applicable Components and only refine a Requirement when budgeting

specifies (specified by)

Requirement (Originating)

Requirement (Originating)

Component (System)

refined by (refines)

specifies (specified by)

built from (built in)

specifies (specified by)

Requirement (Derived)

Component (System)

Component (Segment)

refined by (refines)

built from (built in)

refined by (refines)

built from (built in)

specifies (specified by)

specifies (specified by)

Requirement (Derived)

Component (Subsystem)

Requirement (Derived)

Component (CI)

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Identifying Environmental Characteristics

• Anything that affects the system operation • Clouds (affect radar beams) • Noise • Lightning • Temperature and humidity • Electronic interference • Fungus • Vibration • May be represented as Components of Type “Environment,” with constraint Requirements assigned as required.

System must detect and respond to the dynamic entities, some may be alleviated by packaging.

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