[sc34wg3] TMDM draft - Comments

[Lars Heuer]

Hi all,

A few comments


5.7 Association items
    The paragraph behind the example describes that all associations
    have a scope but does not mention the unconstrained scope
    explicitly as done in the section 5.3.4 "Scope" for the topic
    characteristics.

    Maybe "Scope" should get a dedicated section and a description
    where topic characteristics _and_ associations are mentioned;
    otherwise the paragraph about the association's scope property
    be updated with and name the unconstrained scope explicitly.



7.5. Subjects for defined terms

     http://psi.topicmaps.com/iso13250/topic-characteristic
     [...]
     Usage: common supertype for association, occurrence, and topic name.
                                 ^^^
                                 association _role_

                                 
5.3.4 Scope
[...]
The unconstrained scope is the scope used to indicate that a topic
characteristic is considered to have unlimited validity. In the model
this is represented by the empty set.
[...]


7.5 Subjects for defined terms
[...]
http://psi.topicmaps.com/iso13250/unconstrained-scope
Definition: scope used to indicate that a topic characteristic is
considered to have unlimited validity.
[...]

First: Associations are not mentioned here.

Does not the description in 5.3.4. contradict the definition in 7.5?
I think either in the model the unconstrained scope must be
represented by a topic with the subject identifier
"http://psi.topicmaps.com/iso13250/unconstrained-scope" or the
subject's description should be changed to "scope property of a topic
characteristic or association that is the empty set" or something like that.


Best regards,
Lars
-- 
http://semagia.com