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Role arrow

Fri, 18/04/2008 - 17:34 — jonathanm

Interpretation

Role arrows join submodels that participate in some form of association, or where one is a satellite of the other. The following sections detail the mathematical methods invoked by the role arrow. In each case, a multi-dimensional matrix is created. The dimensions of the matrix depend on the number of role arrows used, and the different uses are therefore described in separate sections.

  • one role arrow
  • two role arrows – two submodels
  • two role arrows – one submodel

How to add a role arrow

A role arrow can only be drawn between two submodels, one representing the object that plays a role in an association, and the other representing the association itself. Therefore, these two submodels must already exist in your model diagram.

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