Institutional Repository

Browsing South African Computer Journal 1999(24) by Title

Browsing South African Computer Journal 1999(24) by Title

Sort by: Order: Results:

  • A pragmatic approach to bitemporal databases: conceptualisation, representation and visualisation 
    Njovu, C; Gray, WA (South African Computer Society (SAICSIT), 1999)
    In this paper, we describe a pragmatic approach to bitemporal data modelling, logical representation and visualisation. Our proposed approach, herein referred to as the Bitemporal Object, State and Event Modelling Approach ...
  • 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: ...
  • 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 ...
  • 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 ...
  • Software chroma keying in an immersive virtual environment 
    Van den Bergh, F; Lalioti, V (South African Computer Society (SAICSIT), 1999)
    This paper presents a very fast software chroma keying algorithm, requiring at most five integer operations per pixel. An improvement of more than 300% in performance over HLS based algorithms was achieved. The algorithm ...
  • 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).
  • Statistical analysis of an automated computer architecture learning environment 
    Waldron, JT; Horgan, J; Keogh, G (South African Computer Society (SAICSIT), 1999)
    The level of programming skill achieved by a method of learning introductory computer architecture with a strong emphasis on assembly language programming as part of a Graduate Diploma in Information Technology in the ...
  • Understanding HCI methodologies 
    Warren, P (South African Computer Society (SAICSIT), 1999)
    The paper proposes a framework for discussing methodologies for developing interactive computer systems. It uses this framework for a sample of systems and shows how certain insights about missing aspects of the methodologies ...
  • 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 ...
  • What are websites used for - cost saving, revenue generating or value creating? 
    Lee, M (South African Computer Society (SAICSIT), 1999)
    For responding to the previous debate about whether Websites can be more properly used as a cost saving or revenue generating devices. The author interprets Plehan's internet selling matrix in a particular way to provide ...

Search UnisaIR


Browse

My Account