An object of the Screen (Solution Design) type must be linked to an object of the User task type. If this is not the case, the object of the Screen (Solution Design) type cannot be exported.
Each user task must be assigned a function allocation diagram, in which the object of the User task type is linked to the object of the Screen (Solution Design) type via the is represented by connection.
The object of the User task type must be linked to only one object of the Screen (Solution Design) type.
The object of the Screen (Solution Design) type must be assigned a model of the Screen design (Solution Design) type.