An Institutional Framework for Heterogeneous Formal Development in UML
This addresses the challenge of ensuring consistency and correctness in UML-based software development for software engineers, though it appears incremental as it builds on existing institution-based approaches.
The paper tackles the problem of formal software development with UML by introducing an institution-based heterogeneous framework that directly expresses formal semantics for different UML diagram types without mapping to a single formalism, enabling verification of consistency horizontally and vertically across development stages.
We present a framework for formal software development with UML. In contrast to previous approaches that equip UML with a formal semantics, we follow an institution based heterogeneous approach. This can express suitable formal semantics of the different UML diagram types directly, without the need to map everything to one specific formalism (let it be first-order logic or graph grammars). We show how different aspects of the formal development process can be coherently formalised, ranging from requirements over design and Hoare-style conditions on code to the implementation itself. The framework can be used to verify consistency of different UML diagrams both horizontally (e.g., consistency among various requirements) as well as vertically (e.g., correctness of design or implementation w.r.t. the requirements).