Simulink Requirements Type property greyed out

Greetings:

In Simulink Requirements ™ I add a top level requirement and set the type property to 'Informational'. I then add a child requirement and the type property is set to 'Functional' and greyed out. If I change the parent to 'Functional', I can then change the child to 'Informational'. Going back to the parent and changing it back to 'Informational' and the child type remains set to 'Informational' but is still greyed out. Why?

Thanks.

Answer 1

[Yongjian Feng]

Hello checker,

According to the document about Requirement Type (https://www.mathworks.com/help/slrequirements/ug/requirement-types.html), all the child requirements of an Informatinal requirement do not contribute to the Implementation and Verification status. That is why the type selection is greyed out.

Thanks,

Yongjian