Understanding Quality in Conceptual Modeling
IEEE Software
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Communications of the ACM
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Goal modelling languages are visual modelling languages. To communicate ideas effectively with a visual modelling language, one should follow some basic principles. One is modularity, i.e. organising diagrams in manageable modules to avoid confusing the reader with overly complex diagrams. Another is emphasis, i.e. visually drawing the attention to the most important pieces of information. In this paper, we evaluate how the goal modelling language KAOS and its supporting tool, Objectiver, help modellers respect nine visual modelling principles. From our observations, we formulate recommendations for modellers, language designers and tool developers.