School of Computing: Recent submissions

  • The key issues in information management in the mid-1990s. Back to business basics through the commercialisation of the ISD 
    Remenyi, DSJ (South African Computer Society (SAICSIT), 1993)
    This paper takes a business or commercial perspective of the key issues in Information Management for the mid-1990s. It focuses on how organisations may use information systems to improve their efficiency and effectiveness ...
  • Expert systems for management control: A multi-expert architecture 
    Ram, V (South African Computer Society (SAICSIT), 1993)
    The use of Expert Systems technology in management decision making domains is increasing rapidly as business environments worldwide grow more turbulent and as the cost of development tools decrease. Research effort in this ...
  • Deduction systems based on resolution 
    Eisinger, N; Ohlbach, HJ (South African Computer Society (SAICSIT), 1993)
    A general theory of deduction systems is presented The theory is illustrated with deduction systems based on the resolution calculus, in particular with clause graphs. This theory distinguishes four constituents of a ...
  • Assessing the usability of computer systems 
    Parker-Nance, TC; Warren, PR (South African Computer Society (SAICSIT), 1993)
    Usability problems with computer systems can be divided into three broad categories: problems due to the socio/political environment, problems due to the usefulness of systems, and problems due to the accessibility of ...
  • SSDE: CASE in education 
    Norman, MJ; Berman, Sonia (South African Computer Society (SAICSIT), 1993)
    Software Engineering is a difficult and time-consuming discipline to learn. CASE Tools are generally expensive, prescriptive and tedious to use. Structured Software Development Environment (SSDE) was developed as a teaching ...
  • An enquiry into property-goal type definitions of the term "information system" 
    Mullany, M; Dos Santos Gomes, A; Miller, R (South African Computer Society (SAICSIT), 1993)
    After reference to IS authors such as Lay [7J it becomes evident that there is as yet no unified definition of the term "information system." This research has attempted to extract, from the relevant literature, the supposed ...
  • A simulation environment for evaluating distributed query processing algorithms 
    Lamprecht, SM (South African Computer Society (SAICSIT), 1993)
    Distributed database systems provide users with the facility to utilize and maintain information that is geographically dispersed in files at several sites while they remain unaware of the distribution of the information. ...
  • Die versoening van konflikterende doelwitte in die databasisomgewing met behulp van regressiemetodes 
    Jordaan, DB; Hattingh, J.M.; Steyn, T (South African Computer Society (SAICSIT), 1993)
    Daar bestaan baie voorbeelde in die dataverwerkingswêreld van gebruikers wat nie die inligting vanuit huIlle rekenaarstelsels kry wat hulle nodig het nie [26]. Nuwe en onvoorsiene vrae en versoeke vir inligting neem by die ...
  • Die empiriese evaluering van variasie van woordpassingalgoritmes vir die bepaling van ekwivalente vanne in 'n genealogiese databasis 
    De Kock, G de V; Du Plessis, C (South African Computer Society (SAICSIT), 1993)
    An evaluation is made of the success of equivalence algorithms to be used for surname matching in a South African Genealogical Database. Surnames in the database can be grouped in ideal equivalence classes. The algorithms, ...
  • Artificial intelligence, expert systems and business computing: Is there a problem? 
    Crossman, T.D. (South African Computer Society (SAICSIT), 1993)
    Some sources suggest that the implementation of Artificial Intelligence and Expert Systems applications (AI/ES) may create problems for the business sector. This article presents a management tool (based on the concept of ...
  • Database consistency under UNIX 
    Viktor, HL; Rennhackkamp, MH (South African Institute of Computer Scientists and Information Technologists, 1991)
    A recovery technique, to facilitate the recovery from system failures should ensure a consistent database state at all times. The UNIX write system call uses a delayed-write policy. Data blocks are kept in a buffer cache ...
  • A Comparison of Methods used to Represent Graphs on a Computer 
    Sutcliffe, Geoff (Computer Society of South Africa (on behalf of SAICSIT), 1985)
    In general graph theorists have a limited knowledge of computers and computing, and are unaware of the possible variations of representation available, and in what circumstances which representation would be better. To ...
  • Automatic vectorization 
    Tidwell, LD; Schach, Stephen R. (South African Institute of Computer Scientists and Information Technologists, 1991)
    It is becoming increasingly difficult for researchers with little or no formal computer science background to make effective use of supercomputers and other vector machines in their own fields of research. Automatic ...
  • A Consideration of Formalisms in Computing 
    Short, R. (Computer Society of South Africa (on behalf of SAICSIT), 1985)
    Formalisms comprise the essential bricks and mortar that we need in order to construct information systems. Not surprisingly therefore the invention and refinement of formalisms has formed and continues to form a ...
  • Tools for Creating Tools: Programming in Artificial Intelligence 
    Machanick, Philip (Computer Society of South Africa (on behalf of SAICSIT), 1985)
    After a brief look at how the notion of the stored program is applied by programmers in the area of Artificial Intelligence (Al), we shall look at a specific Al tool: a production svstem. The discussion is at a ...
  • A causal analysis of job turnover among systems analysts 
    Smith, DC; Hansen, AL; Oosthuizen, NC (South African Institute of Computer Scientists and Information Technologists, 1991)
    Staff Shortages in the Information Systems industry are a continuing problem. Job turnover of IS staff contributes to this shortage and is particularly high in South Africa. This high turnover is often attributed to ...
  • Quo Vadis, Computer Science? 
    MacGregor, K.J. (Computer Society of South Africa (on behalf of SAICSIT), 1985)
    The discipline of Computer Science has been established for almost twenty years. In SOUTH AFRICA, Computer Science Departments have been in existence for fifteen years, and producing graduates for twelve, however, the ...
  • High-level Debugging Systems for Pascal: Interpreter versus Compiler 
    Hirsch, Michael; Schach, Stephen R.; Van Biljon, Willem R. (Computer Society of South Africa (on behalf of SAICSIT), 1985)
    Two approaches to high-level debugging systems for Pascal are compared, namely the use of a debugging precompiler as against a debugging interpreter. A description is given of a high-level Pascal debugging interpreter ...
  • The universal relation as a database interface 
    Philips, M.J.; Berman, Sonia (South African Institute of Computer Scientists and Information Technologists, 1991)
    The universal relation is a way of overcoming users' prime database access difficulty, namely navigation through database structures. As a result there is reduced user involvement with the underlying logical database ...
  • Specification and Performance Prediction of Fourth Generation Language Run Units 
    Wulf, S. (Computer Society of South Africa (on behalf of SAICSIT), 1984)
    Fourth generation languages offer substantial productivity benefits to data processing departments. Major problems associated with their use include the inability of conventional project management systems to control ...

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