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Home » Eclipse Projects » Requirements Modeling Framework  » Clarification on Spec hierachy(What kind of Spec Relation Type is(or is related to) a spec hierarchy )
Clarification on Spec hierachy [message #1062383] Fri, 07 June 2013 09:12 Go to next message
Anthony FAUCOGNEY is currently offline Anthony FAUCOGNEY
Messages: 2
Registered: June 2013
Junior Member
Hello,

First thanks all for your good job.

I'm familiar with reqif, rmf and pror, but I still miss one point : the spec hierarchy

What kind of relational type a spec hierarchy is ?

Is it a refinement/derivation or more a composition ?

Feel free to add more background information if you think I'm out !

Thanks for help.

Anthony
Re: Clarification on Spec hierachy [message #1062546 is a reply to message #1062383] Sat, 08 June 2013 12:01 Go to previous messageGo to next message
Michael Jastram is currently offline Michael Jastram
Messages: 148
Registered: April 2010
Location: Düsseldorf, Germany
Senior Member
Hello Anthony,

SpecHierarchy elements are arranged in a tree below a Specification. Each SpecHierarchy references a SpecObject. They allow the arrangement of requirements in a tree structure, and the SpecHierarchies are the nodes of the tree.

If you check out the ReqIF Spec (http://www.omg.org/spec/ReqIF/1.0.1/PDF/), this is visualized in Figure 10.6 (page 33).

I hope this helps!

- Michael
Re: Clarification on Spec hierachy [message #1062648 is a reply to message #1062546] Mon, 10 June 2013 04:53 Go to previous messageGo to next message
Anthony FAUCOGNEY is currently offline Anthony FAUCOGNEY
Messages: 2
Registered: June 2013
Junior Member
Thanks Mickael,

But my question is more on the "what kind" of relation this spec hierarchy (the spec object node) address to the spec object leaf ?

Is it a refinement, a derivation, a composition, a copy... whatever else.

Thanks in advance.
Re: Clarification on Spec hierachy [message #1062875 is a reply to message #1062648] Tue, 11 June 2013 04:19 Go to previous message
Michael Jastram is currently offline Michael Jastram
Messages: 148
Registered: April 2010
Location: Düsseldorf, Germany
Senior Member
Hello Anthony,

It's a reference, or, in UML-speak, it's a directed association relationship. You could probably also interpret it as an aggregation relationship, but that's not how it is represented in the spec.

Best,

- Michael
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