Fact Types from IGD ‘Tickets’

Fact Type ´Seat´. F32: “There is a seat <74> in row <75>.”

Test UC on:

Fact

Seat

Number

Row

Allowed?

Domain Expert Comment

Conclusion

Role 74

1:

2:

2

2

6

7

} ü

The modeler did not bother the Domain Expert with this, the example Facts were easily found.

No UC on

Role 74 only

Role 75

3:

4:

2

14

6

6

} ü

No UC on

Role 75 only

Because there is no UC on just one Role, UC 47 on the combination of Roles 74+75 was added.

“A performance can have at most one number of free seats.”

“The same number can be the number of free seats in several performances.”

Fact Type ´Free Seats For Performance´.

F33: “There are still <76> seats free for performance ...

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