Introduction to the notion
The models maintain relations that have to be clarified. The job of clarification takes place first at the relations-between-modeling-element level. Inside each aspect, the elements are linked to each other by relations depending on their categories and described by the metamodel. Added to which are the relations between packages regarding the reuse of generic or shared elements.
Some illustrations of justification
- An objective (upstream) justifies the organizational or equipment measures.
- An operational requirement motivates an infrastructure choice