Abstract. The UML-based Specification Environment (USE) tool supports the syntactic analysis, type checking, consistency checking, and dynamic validation of invariants and pre-/pos...
Wuliang Sun, Eunjee Song, Paul C. Grabow, Devon M....
Abstract. In this paper, we deal with errors in metamodels. Metamodels define the abstract syntax of modeling languages. They play a central role in the Model-Driven Architecture. ...
We introduce an extension of linear constraints, called linearrange constraints, which allows for (meta-)reasoning about the approximation width of variables. Semantics for linear...
Constraint based draw programs require users to understand and manage relationships between drawing elements. By establishing constraint relationships among elements the user effe...