https://ir.unisa.ac.za/handle/10500/24282 2026-05-06T12:41:15Z https://ir.unisa.ac.za/handle/10500/24311 Reflections on the nature and future of computer science in Southern Africa Venter, BH Computer Science is a relatively recent scientific discipline. It has seen rapid growth and even more rapid change. Not surprisingly there is constant controversy among computer scientists about the nature of the discipline, and how best to pursue it. This article aims to stir up the controversy. The views expressed in it are personal, and the article is an adaptation of the author's inaugural address at Fort Hare University 1989-01-01T00:00:00Z https://ir.unisa.ac.za/handle/10500/24310 Software design to meet third world requirements: an experimental software engineering approach Machanick, Philip Appropriate technology refers to technology appropriate for use in less developed parts of the world, especially the Third World; this paper raises some problems in adapting a definition of appropriate technology to computer software. A partial solution, a strategy called experimental software engineering, is introduced. The potential of this solution is demonstrated by a case study, in which software for medical education is developed. The result is a clearer understanding of both appropriate technology and design of software for usability. 1989-01-01T00:00:00Z https://ir.unisa.ac.za/handle/10500/24309 An approach to defining abstractions, refinements and enrichments Kourie, D.G. A proposal for defining abstractions and refinements is given in terms of three-valued logic applied to a domain of discourse consisting of a property and an entity set. Definitions for several related concepts flow naturally from these, including possible orderings on refinements and abstractions, as well as the notions of non-determinism, enrichment and base abstractions. 1989-01-01T00:00:00Z https://ir.unisa.ac.za/handle/10500/24308 A "cooperating expert's" framework for business expert system design Finnie, G.R. Expert system development environments based on current language constructs such as rules and frames have been criticised for approaching the task of problem solving from too low a level of abstraction. This paper describes the generic tasks framework for knowledge based systems proposed by Chandrasekaran et al. and discusses its application to the problem of fmancial statement analysis. 1989-01-01T00:00:00Z