A FRAMEWORK FOR THE PRAGMATIC QUALITY OF Z SPECIFICATIONS

Author:

KAMTHAN PANKAJ1

Affiliation:

1. Department of Computer Science and Software Engineering, Concordia University, 1455 De Maisonneuve Boulevard West, Montreal, Quebec H3G 1M8, Canada

Abstract

Z is a formal specification language for describing sequential software systems. As the use of Z increases, the quality of Z specifications as effective means of communication arises. The aim of this paper is to contribute to a systematic assessment of the quality of Z specifications as perceived by their stakeholders. A pragmatic quality framework for Z specifications using notions from semiotics, cognitive psychology, and information system quality is proposed. The goals for pragmatic quality, and manageable criteria and mechanisms to address them in a feasible manner are identified. The utility and trade-offs of the mechanisms in achieving the quality goals of the framework are analyzed. Examples that lead to compromise of pragmatic quality in a Z specification, and techniques for improvement, are given.

Publisher

World Scientific Pub Co Pte Lt

Subject

Artificial Intelligence,Computer Graphics and Computer-Aided Design,Computer Networks and Communications,Software

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