Does object coupling really affect the understanding and modifying of OCL expressions?
Proceedings of the 2006 ACM symposium on Applied computing
Flexible verification of user-defined semantic constraints in modelling tools
CASCON '08 Proceedings of the 2008 conference of the center for advanced studies on collaborative research: meeting of minds
A system for visual role-based policy modelling
Journal of Visual Languages and Computing
Lessons learned from developing a dynamic OCL constraint enforcement tool for java
MoDELS'05 Proceedings of the 2005 international conference on Satellite Events at the MoDELS
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The Object Constraint Language (OCL) was introduced as part of the Unified Modeling Language (UML). Its main purpose is to make UML models more precise by providing a constraint language. For example, operation contracts and statechart guard conditions can be precisely defined using OCL. There has been an ongoing debate on the usefulness of using OCL in UML-based development, questioning whether the additional effort and formality were worth the benefit. This paper presents the results of a controlled experiment that investigates the impact of using OCL on model comprehension and maintainability. Current results show that, once past an initial learning curve, significant benefits can be obtained by using OCL in combination with UML diagrams.