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Browsing South African Computer Journal 1999(24) by Issue Date

Browsing South African Computer Journal 1999(24) by Issue Date

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  • Active learning: Issues and challenges for information systems and technology 
    Quilling, RD Erwin, GJ Petkova, O (South African Computer Society (SAICSIT), 1999)
    Changes following South Africa's first democratic election when Nelson Mandela was elected President, have stimulated reviews of many economic, political and social structures including those in national education. One of ...
  • 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 ...
  • An information-theoretic semantics for belief change 
    Meyer, TA (South African Computer Society (SAICSIT), 1999)
    Belief change is an interdisciplinary topic and is researched in departments of Computer Science, Artificial Intelligence, Philosophy, Mathematics and Engineering. It is therefore not surprising that there are a variety ...
  • Visualising eventuality structure 
    Rock, ST (South African Computer Society (SAICSIT), 1999)
    This paper describes the use of pictorial representations in showing the understanding of natural language that is about multiple or extended events. The focus is on the structure of such eventualities, and depiction of ...
  • Multimedia as a positive force to leverage web marketing, with particular reference to the commercial sector 
    Shear, S (South African Computer Society (SAICSIT), 1999)
    The Internet (World-Wide-Web) has opened a whole new dimension into advertising, and there is little doubt that audio and video- the basic components of conventional advertising, will play a role there as well. However, ...
  • From information security baselines to information security profiles 
    Von Solms, R Van de Haar, H (South African Computer Society (SAICSIT), 1999)
    To protect the information systems of an organization an appropriate set of security controls needs to be installed and managed properly. Many organizations that can afford it conduct either a risk analysis exercise ...
  • 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, ...
  • 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 ...
  • Reconciling the needs of new information systems graduates and their employers in small, developed countries 
    Turner, R Lowry, G (South African Computer Society (SAICSIT), 1999)
    This paper is the first of a series of studies of a research program aimed at achieving a better fit between university study and professional practise of information systems. The paper reports the results of two surveys: ...
  • Some automata-theoretic properties of -NFA 
    Van Zijl, L Van der Walt, APJ (South African Computer Society (SAICSIT), 1999)
    We prove that the shortest word accepted by an n-state intersection selective nondeterministic automaton with nonempty language can be of length O( e n log n).
  • Shortest delay scheduling algorithm for lossless quality transmission of stored VBR video under limited bandwidth 
    Li, F Liu, Y Lee, JY Ahmad, I (South African Computer Society (SAICSIT), 1999)
    In this paper, we propose scheduling algorithms for call admission control servers. For each requested video, the server sends it according to its smoothed profile aims at maximizing resource utilization and ease of network ...
  • Introducing research methods to Computer Science honours students 
    Galpin, V Hazelhurst, S Mueller, C Sanders, I (South African Computer Society (SAICSIT), 1999)
    Research skills are important for any academic and can be of great benefit to any professional person. These skills are, however, difficult to teach and to learn. In the Department of Computer Science at the University ...
  • Enhancing the predictability of two popular software reliability growth models 
    Keiller, PA Mazzuchi, TA (South African Computer Society (SAICSIT), 1999)
    In this paper, enhancement of the performance of both the Musa-Okumoto and the Goel-Okumoto Software Reliability Growth models are investigated using various smoothing techniques. The method of parameter estimation for the ...
  • A generic modelling framework for interactive authoring support environments 
    Kotze, P (South African Computer Society (SAICSIT), 1999)
    Existing modelling frameworks for the design of interactive systems emphasise the relationship between the system's in­ternal state and the rendering of this state at the user interface. Modern programming and multimedia ...
  • Approaches to video transmission over GSM networks 
    Du, B Maeder, A (South African Computer Society (SAICSIT), 1999)
    Real-time video delivery adds an aspect of reality when used in conjunction with other computer and human communi­cations facilities (eg in videophone or videoconferencing applications). However, the complex and time-critical ...
  • The role of experience in user perceptions of information technology: an empirical examination 
    Handzic, M Low, G (South African Computer Society (SAICSIT), 1999)
    This paper reports the results of an empirical examination of the effects of experience in using a multifunctional information technology on users' perceptions of its usefulness and ease of use in a university task context ...
  • 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 ...
  • Generalised unification of finite temporal logic formulas 
    Hazelhurst, S (South African Computer Society (SAICSIT), 1999)
    Given two temporal logic formulas, g and h, we wish to know whether there is a modification, m, we can make to h so that g ==> m( h). This problem has important applications in hardware verification, where finding such ...
  • Harmonizing global internet tax: a collaborative extranet model 
    Lawrence, E Garner, B (South African Computer Society (SAICSIT), 1999)
    The advent of Internet Commerce represents a significant threat to taxation revenue collection for governments throughout the world. Governments cannot prevent the creative and innovative commercial use of the Internet in ...
  • A Java client/server system for accessing arbitrary CANopen fieldbus devices via the Internet 
    Buhler, D Nusser, G Gruhler, G Kuchlin, W (South African Computer Society (SAICSIT), 1999)
    This paper describes the Java CAN API a portable and extensible application interface to arbitrary CANopen fieldbus devices. This API forms the basis for the implementation of JRCC (Java Remote CAN Control), a tool which ...

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