Tag Archives: relationship

A simple relational Model

Modelling foundations: What does a simple diagram ‘thing – relation – thing’ say, in terms of logic? Continue reading

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Software Requirements Analysis: From the Art of Tidying Up to the Art of Abstraction

Requirements analysis is more than just tidying up, it’s about understanding the complexity of structures. An explanation inspired by the art of Ursus Wehrli: Continue reading

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Reflections on Abstractions: The Use Case trade-off

Based on the elementary terms of relational structures, this little example shows the basic trade-off of Use Cases: understandability vs redundancy. Continue reading

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Reflections on Abstractions: Adjacent Rooms

Example of an abstraction by subsuming directly connected nodes in the original into a single node in the model. This corresponds to a situation where structures of wall are abstracted to rooms with the neighborhood relation. Continue reading

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