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SysML Distilled: A Brief Guide to the Systems Modeling Language by Lenny Delligatti

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Chapter 11. Requirements Diagrams

Another essential kind of SysML diagram is the requirements diagram. Modelers typically use six kinds of relationships to establish traceability among requirements as well as traceability from requirements to structures and behaviors in the system model. You can use several notations on requirements diagrams to express these relationships, and each has strengths and weaknesses.

A system’s requirements inform every other aspect of its design. The requirements diagram is the primary medium in SysML for conveying this kind of information to your stakeholders.

11.1. Purpose

Text-based requirements (and the requirements specifications that contain them) have traditionally been staples in systems engineering. This ...

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