MBSE with CORE 100821

Concerns and Risks: Key Aspects of the Metamodel

refined by (refines)

Document

documents (documented by)

refined by (refines)

Requirement

generates (generated by)

causes (caused by)

Color Code

Requirement Element

Functional Element

Physical Element

Interface Element

Risk

Concern

Verification Element

Other Element

Concern and Risk elements may also be related to Components , Functions , et al.

183

Understanding Concerns

• During capture and analysis, problems will be identified • Unclear or incomplete requirements • Over- or under-specified requirements • Contradictory requirements • Requirement for unlikely system performance • Capture these problems using the Concern class • Trace to the source • Reference the analysis • Map to the solution • Critical aspect of your design history

A Concern identifies a problem (as well as its resolution) with key elements in a system design or specification

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MBSE with CORE