Requirements Diagrams are used to graphically depict hierarchies of Stakeholder Needs, Requirements and Test Cases and show traceability to other model elements. Stakeholder Needs, Requirements, and Verification Test Cases are created and managed in Cradle’s powerful Requirement Management (RM) module and cross reference linked to the SysML modeling elements.
Requirements are usually displayed in table format rather than the Requirements Diagram because of the large number of requirements. In the following example, traceability from Stakeholder Needs to Stakeholder REQs to System REQs is shown. Traceability between the System Requirements and Verification/Test Cases is also shown in the Cradle Traceability Tables.