When a model is migrated from SAP PowerDesigner to erwin Data Modeler through the Miti bridge, text boxes arrive as Shapes on the erwin ER Diagram. Areas do not. Both are used for the same purpose — that is, in visually grouping entities — so a diagram that looks organised in PowerDesigner can lose its grouping in erwin if the data architects in powerdesigner use areas in doing so and then use Miti bridge to import to Erwin. In this blog, I study exactly how a text box becomes an erwin Shape, and use that evidence to propose the design of a Python-based utility that recreates PowerDesigner Areas as erwin Shapes, verifies them, and reports the result.
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