A Practical Guide to SysML, 2nd Edition

13.3 Representing a Text Requirement in the Model

A requirement that is captured in text is represented in SysML using the «requirement» model element. Once captured, it can be related to other requirements and to other model elements through a specific set of relationships. Each requirement includes predefined properties for a unique identifier and for a text string.

Figure 13.2 is an example of a text-based requirement called Operating Environment as represented in SysML. It is distinguished by the keyword «requirement» and will always contain, as a minimum, a name and properties for id and text. This same information can be displayed in a tabular format that is described later in this chapter.

FIGURE 13.2 Example of a requirement as depicted ...