USE: A UML-based specification environment for validating UML and OCL

USE: A UML-based specification environment for validating UML and OCL

The Unified Modeling Language (UML) is accepted today as an important standard for developing software. UML tools however provide little support for validating and checking models in early development phases. There is also no substantial support for the Object Constraint Language (OCL). We present an approach for the validation of UML models and OCL constraints based on animation and certificat...

Validating UML Models and OCL Constraints

Validating Metrics for OCL Expressions Expressed within UML/OCL models

Measuring quality is the key to developing high-quality software, and it is widely acknowledged that quality assurance of software products must be guaranteed from the early stages of development, assessing through metrics the quality of early models such as UML diagrams. There exists several proposals of metrics to UML diagrams, such as class diagrams, use case diagrams, etc. But, even though ...

A Specification-Based Test Case Generation Method for UML/OCL

Automated test data generation is an important method for the verification and validation of UML/OCL specifications. In this paper, we present an extension of DNF-based test case generation methods to class models and recursive query operations on them. A key feature of our approach is an implicit representation of object graphs avoiding a representation based on object-id’s; thus, our approach...

A Formal Proof Environment for UML / OCL

We present the theorem proving environment HOL-OCL that is integrated in a Model-driven Engineering (MDE) framework. HOL-OCL allows to reason over UML class models annotated with OCL specifications. Thus, HOL-OCL strengthens a crucial part of the UML to an objectoriented formal method. HOL-OCL provides several derived proof calculi that allow for formal derivations establishing the validity of ...