SysML, UAF, UML, and UPDM Profiles > SysML profile > Requirements > Requirements in a Modeler pane > Setting up the default prefix and number of digits to use for new requirements (SysML)
  
Setting up the default prefix and number of digits to use for new requirements (SysML)
This topic sets the default prefix and names for new Requirements and new Requirement Extensions (Design Constraints, Extended Requirements, Functional Requirements, Interface Requirements, Performance Requirements and Physical Requirements).
To set up the default prefix and number of digits to use for new requirements:
1. Apply the «SysMLRequirementsModel» stereotype to the model:
a. Open the model's Property Pages.
b. Click the items tab.
c. In the Show Associated list, select Stereotypes.
d. Click the Link button.
e. In the Links Editor, select the check box associated with the «SysMLRequirementsModel» stereotype.
f. Click OK.
2. Open the model's Property Pages.
3. Click the SysMLRequirementsModel tab.
4. Set the tagged value of the requirementIdPrefix tag definition to the default prefix you want to use for the names of new Requirements that are created in the model.
5. Set the tagged value of the requirementIdDigits tag definition to the default number of digits you want to use for the names of new Requirements that are created in the model.
For example, if the requirementIdPrefix tag definition is set to REQ and the requirementIdDigits tag definition is set to 4, the first four new Requirements in the model will be named as follows: REQ0001, REQ0002, REQ0003 and REQ0004.