What is the relationship between semantic, domain, notation, and graphical definition models?
In general, the terms semantic and domain model are synonymous and refer to the information being visualized and edited. The information used to represent and persist the visual elements in the GMF runtime is referred to as the notation model. When defining the diagram nodes and figures for use in generating the graphical editor, the toolsmith works with a graphical definition model. This is similar to the notation model, but they are distinct. The graphical definition model is linked to the domain and tooling definition models using a mapping model, which is used to produce a generation model that is used to drive the code generation. Clear as mud? 😉 A picture of the models and their workflow is found at the beginning of the tutorial.
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