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Browsing South African Computer Journal (SACJ) by Title

Browsing South African Computer Journal (SACJ) by Title

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  • 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 ...
  • Changes in entry-level university students' attitudes to computers from 1985 to 1997 
    Clarke, MC; Finnie, GR (South African Computer Society (SAICSIT), 1998)
    A modified version of Lee's instrument for measuring attitudes to computers was administered to two groups of first-year university students separated by a period of twelve years. Factor analysis was applied to these two ...
  • CID3: an extension of ID3 for attributes with ordered domains 
    Cloete, I; Theron, H (South African Institute of Computer Scientists and Information Technologists, 1991)
    Quinlan's ID3 is a popular and efficient algorithm for inducing decision trees from concept examples, where the examples are presented as vectors of attribute-value pairs. If some attributes have integer or real domains ...
  • The CILT multi-agent learning system 
    Viktor, HL (South African Computer Society (SAICSIT), 1999)
    A multi-agent learning system consists of two or more learners or learning agents that co-exist in a learning environment. The learners have the ability to learn together, thus utilizing one another's strengths and ...
  • Co-operating to learn using JAD techniques 
    Thomas, TA (South African Computer Society (SAICSIT), 1999)
    The role of the Information Systems' (IS) developer is changing. IS developers are required to be able to work with users and get a common understanding with them. In order to achieve this, the developers must have not ...
  • A comparison of graph colouring techniques 
    Parkinson, E; Warren, PR (South African Computer Society (SAICSIT), 1995)
    Many scheduling problems can be modelled as graph colouring problems. This paper gives a survey of heuristic algorithms used to colour graphs by describing a number of such algorithms found in the literature using an ...
  • A complexity metrics model for software 
    Torn, A; Andersson, T; Enholm, K (South African Computer Society (SAICSIT), 1999)
    A complexity metrics model for software is introduced. The model is defined as l( p )c( p ) = e( p ), where p is any piece of software, l( p ) its length, c( p ) an average type complexity measure independent of length, ...
  • The complexity of Petri Net transformations 
    Donaldson, SR; Bause, F; Kritzinger, Pieter S. (South African Computer Society (SAICSIT), 1996)
    We consider the complexity of several property preserving Petri net transformations found in the literature. These transfor­mations were candidates for.inclusion in a software tool to peiform liveness and boundedness ...
  • Computer fraud in SA: an indictment of information systems 
    Messerschmidt, HJ (South African Computer Society (SAICSIT), 1995)
    There is an increasing amount of computer fraud in South Africa. A recent court case shows that Information Systems can actually assist criminals. The paper shows where the major loopholes are and suggests ways of improving ...
  • Computer programming and learning to write 
    Barrow, J (South African Computer Society (SAICSIT), 1999)
    Programming is often seen in terms of mathematical models. An additional perspective, that of programming as a means of communication between the programmer and the computer, can also be useful, particularly in teaching ...
  • Computer Science and Information Systems: the future? 
    Machanick, P (South African Computer Society (SAICSIT), 1999)
  • Computer-supported cooperative education to support development in South Africa 
    Grobler, M (South African Computer Society (SAICSIT), 1995)
    With the enormous educational backlogs in South Africa it seems that there is no choice other than searching for alternative, technology-based ways for improving the existing educational situation. This paper describes ...
  • A computerised-consultation service for the computerisation of the very small small-business enterprise 
    Rensleigh, CW; Olivier, MS (South African Computer Society (SAICSIT), 1997)
    Small-business performance can benefit from computerisation. Unfortunately, however, most of the very small small-business enterprises do not have the financial means to acquire the services of a computerisation consultant. ...
  • Concept network framework for a multi-paradigm knowledge base 
    Kambanis, J (South African Institute of Computer Scientists and Information Technologists, 1991)
    This paper describes a conceptual framework and an implementation medium for constructing multi-paradigm knowledge bases. The idea of a concept network is used as a basis for storing knowledge in different knowledge ...
  • A conceptual design for high-volume data processing of warehouse database into multidimensional database 
    Trakulsuk, P; Avatchanakorn, V (South African Computer Society (SAICSIT), 1999)
    This paper presents a conceptual model of analyzing huge amount of information from a data warehouse into Multidimensional Database (MDDB) using multidimensional data (MDD)model. The major advantages of this model are: 1) ...
  • Connected digit recognition in Afrikaans using hidden Markov models 
    Nieuwoudt, C; Botha, EC (South African Computer Society (SAICSIT), 1999)
    We implement and evaluate the performance of a state-of-the-art connected digit recognition system for spoken Afrikaans digits. The creation of a database for our purpose is discussed. Results indicate that an efficient ...
  • Coping with degeneracy in the computation of Dirichlet Tessellations 
    Buys, J; Messerschmidt, HJ; Botha, JF (South African Institute of Computer Scientists and Information Technologists, 1990)
    A modification to the Dirichlet tessellation algorithm of Green and Sibson {1} is presented which deals effectively with degenerate and near-degenerate vertices and allows the construction of a ...
  • Cost-effective visual simulation based on graphics workstations 
    Caduri, A; Kourie, D.G. (South African Institute of Computer Scientists and Information Technologists, 1991)
    Visual simulators can play a key role in personnel training and the evaluation of engineering designs. Although commercially available simulators provide realistic 3D perspective images, they are priced in the million ...
  • Critical success factors for implementing CASE at a selection of companies in South Africa 
    Addison, TM; Hamersma, S (South African Computer Society (SAICSIT), 1996)
    CASE, or Computer Assisted Software Engineering, provides the potential for a future in which computer programs will be generated automatically from business rules, but many potential buyers have adopted a wait and see ...
  • Critical success factors for the implementation of DSS at a selection of organisations in Kwazulu/Natal, South Africa 
    Averweg, URF; Erwin, GJ (South African Computer Society (SAICSIT), 1999)
    Decision Support Systems (DSS) are specially developed for supporting the solution of a non-structured management problem for improved decision-making. DSS utilise data, provide easy user interfaces and allow for the ...

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