Extracting Object Interactions Out of Software Contracts Using Model Transformations
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Using VCL as an aspect-oriented approach to requirements modelling
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On model-based regression testing of web-services using dependency analysis of visual contracts
FASE'11/ETAPS'11 Proceedings of the 14th international conference on Fundamental approaches to software engineering: part of the joint European conferences on theory and practice of software
Model-driven monitoring: an application of graph transformation for design by contract
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Generating class contracts from deterministic UML protocol statemachines
MODELS'09 Proceedings of the 2009 international conference on Models in Software Engineering
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Design by Contract (DbC) is widely acknowledged to be a powerful technique for creating reliable software. DbC allows developers to specify the behavior of an operation precisely by pre- and post-conditions. Existing DbC approaches predominantly use textual representations of contracts to annotate the actual program code with assertions. In the Unified Modeling Language (UML), the textual Object Constraint Languages (OCL) supports the specification of pre- arid post-conditions by constraining the model elements that occur in UML diagrams. However; textual specifications in OCL can become complex and cumbersome, especially for software developers who are typically not used to OCL. In this paper, we propose to specify the pre- and post-conditions of an operation visually by a pair of UML object diagrams (visual Contract). We define a mapping of visual contracts into Java classes that are annotated with behavioral interface specifications in the Java Modeling Language (JML). The mapping supports testing the correctness of the implementation against the specification using JML tools, which include a runtime assertion checker. Thus we make the visual contracts executable.