Constraint diagrams: visualizing invariants in object-oriented models
Proceedings of the 12th ACM SIGPLAN conference on Object-oriented programming, systems, languages, and applications
The object constraint language: precise modeling with UML
The object constraint language: precise modeling with UML
Three dimensional software modelling
Proceedings of the 20th international conference on Software engineering
Logic and Visual Information
Precise Visual Specification of Design Patterns
ECCOP '98 Proceedings of the 12th European Conference on Object-Oriented Programming
VL '99 Proceedings of the IEEE Symposium on Visual Languages
Reasoning with Spider Diagrams
VL '99 Proceedings of the IEEE Symposium on Visual Languages
Alloy: a lightweight object modelling notation
ACM Transactions on Software Engineering and Methodology (TOSEM)
Advanced visual modelling: beyond UML
Proceedings of the 24th International Conference on Software Engineering
On the Completeness and Expressiveness of Spider Diagram Systems
Diagrams '00 Proceedings of the First International Conference on Theory and Application of Diagrams
Positive Semantics of Projections in Venn-Euler Diagrams
Diagrams '00 Proceedings of the First International Conference on Theory and Application of Diagrams
Diagrammatic Reasoning Systems
ICCS '08 Proceedings of the 16th international conference on Conceptual Structures: Knowledge Visualization and Reasoning
Measuring and Reducing Clutter in Euler Diagrams
Electronic Notes in Theoretical Computer Science (ENTCS)
A Survey of Reasoning Systems Based on Euler Diagrams
Electronic Notes in Theoretical Computer Science (ENTCS)
Contextual diagrams as structuring mechanisms for designing configuration knowledge bases in UML
UML'00 Proceedings of the 3rd international conference on The unified modeling language: advancing the standard
Syllogisms in Rudimentary Linear Logic, Diagrammatically
Journal of Logic, Language and Information
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The Unified Modeling Language (UML) is a set of notations for modelling object-oriented systems. It has become the de facto standard. Most of its notations are diagrammatic. An exception to this is the Object Constraint Language (OCL) which is essentially a textual, stylised form of first order predicate logic. We describe a notation, constraint diagrams, which were introduced as a visual technique intended to be used in conjunction with the UML for object-oriented modelling. Constraint diagrams provide a diagrammatic notation for expressing constraints (e.g., invariants) that could only be expressed in UML using OCL.