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Chapter 13. Modeling Text-Based Requirem... > 13.2 Requirement Diagram

13.2 Requirement Diagram

Requirements captured in SysML can be depicted on a requirement diagram, which is particularly useful in graphically depicting hierarchies of specifications or requirements. Because this diagram can depict large numbers of relationships to a single requirement, it is useful for representing the traceability of a single requirement to examine how that requirement is satisfied, verified, refined, and to examine its derived relationships with other requirements. The requirement diagram header is depicted as follows:

req [model element type] model element name [diagram name]

The requirement diagram can represent a package or a requirement, as indicated by the model element type in square brackets. The model element name is the name of the package or requirement containing the requirements, and the diagram name is user defined and often describes the purpose of the diagram. Figure 13.1 shows a generic example of a requirement diagram that contains some of the most common symbols.


  

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