Create read-only tag in an UML profile

[Boron]

Hello,
does anybody know how to make a tag read-only?

We created an own UML profile with some stereotypes for classes.
For one stereotype I would like to make one tag "read-only". The tag has a default value, and it would be nice if the user, who creates a class of such a stereotype cannot change the value of that tag.

[Mauricio Moya (Arquesoft)]

You can create a workflow script that return false to method CanEditTag when the name of the tag match your criteria.

[Eve]

Predefined Structured Types

Code: [Select]

Type=Const;
Default=Val;Used to: Create a read-only constant value.

To include this in a profile, see With Predefined Tag Types.

[Boron]

Simons approach worked well.
Many thanks for that.