Since Z, being a state-based language, describes a system in terms of its state and potential state changes, it is natural to want to describe properties of a specified system also...
Conceptual information retrieval systems use structured document indices, domain knowledge and a set of heuristic retrieval strategies to match user queries with a set of indices ...
Abstract. In this article, we present a flexible simulation environment for embedded real-time software refinement by a mixed level cosimulation. For this, ne the native speed of a...
The paper discusses a proposal of a formal description of ARD+ a conceptual design and hierarchical refinement method for knowledge-based systems. Formalization of method syntax i...
The UML is the de facto standard for system specification, but offers little specialized support for the specification and analysis of policies. This paper presents Deontic STAIRS,...