Model-Based Systems Engineering with GENESYS

Entities Used for Requirements Capture

Component (System)

documents (documented by)

Document

built from (built in)

refined by (refines)

documents (documented by)

augmented by (augments)

Requirement

ExternalFile

refined by (refines)

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The Requirements Capture Approach

• GOAL: Source requirements in single, verifiable statements. (Need to break-up composite requirement statements.) • Record source requirement statement in the Description attribute of a REQUIREMENT. • Obtain traceability between source document and first level REQUIREMENT with documents/documented by relationship pair. • Obtain traceability between parent REQUIREMENT and child REQUIREMENT with the refines/refined by relationship pair.

documentedby

Source Document

System

documents

X

Parent Requirements

refinedby

refinedby

Child Requirements

refinedby

Leaf node Requirements trace to other entities

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