Metadata modeling: Difference between revisions

Revision as of 23:08, 7 January 2010

Revision as of 17:02, 16 October 2010

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=== Association ===

[[Image:Mm33.gif|thumb|Fig.5 Association]]

An association is a structural relationship that specifies how concepts are connected to another. It can connect two concepts (binary association) or more than two concepts (n-ary association). An association is represented with an undirected solid line. To give a meaning to the association, a name and name direction can be providedyhhjjmmkmprovided. The name is in the form of an active verb and the name direction is represented by a triangle that points in the direction one needs to read. Association with a name and name direction is visualized in Figure 5.

In Figure 6 (removed) an example of association is illustrated. The example is a fragment of the process-data diagram of the requirements analysis in the Unified Process. Because both concepts are not expanded any further, although several sub concepts exist, the concepts are illustrated as closed concepts. The figure reads as “SURVEY DESCRIPTION describes USE CASE MODEL”.