KeY is a tool that provides facilities for formal specification and verification of programs
within a commercial platform for UML based software development. Using the KeY tool …

Abstract The Object Constraint Language OCL allows to formally specify constraints on a
UML model. We present a formal syntax and semantics for OCL based on set theory …

Abstract The Unified Modeling Language (UML) is a widely accepted standard for modeling
software systems. The UML supports object-oriented approaches to software development …

Dynamic invariant analysis identifies likely properties over variables from observed program
traces. These properties can aid programmers in refactoring, documenting, and debugging …

Abstract The Object Constraint Language (OCL) was introduced to support the specification
of constraints for UML diagrams and is mainly used to formulate invariants and operation pre …

A type inference system and a big-step operational semantics for expressions of the “Object
Constraint Language”(OCL), the declarative and navigational constraint language for the …

Abstract The textual Object Constraint Language (OCL) is primarily intended to specify
restrictions over UML class diagrams, in particular class invariants, operation pre-, and …

The OCL 1.4 specification introduces let-declarations for adding auxiliary class features in
static structures of the UML. We provide a type inference system and a big-step operational …

This article presents a UML profile for an OCL extension that enables modelers to specify
behavioral, state-oriented real-time constraints in OCL. In order to perform a seamless …

The Unified Modeling Language (UML) has received wide acceptance as a standard
language in the field of software specification by means of different diagram types. In a …