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South African Computer Journal 1999(24): Recent submissions

Now showing items 1-20 of 36

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 ...
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 ...
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 ...
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 ...
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).
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 ...
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: ...
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) ...
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 ...
Grounded theory methodology in IS research: Glaser vs Strauss

Smit, J (South African Computer Society (SAICSIT), 1999)

Grounded Theory (GT), along with the surging interest in qualitative research, is becoming a popular research strategy in the Information Systems (IS) field. At the same time however, the method seems to be changing in its ...
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, ...
An object-oriented framework for rapid client-side integration of information management systems

Schimkat, RD; Kuchlin, W; Krautter, R (South African Computer Society (SAICSIT), 1999)

Reuse of software components offers the potential for significant savings in application development costs and time. This paper provides a characterization of reuse at different levels of client-based software in distributed ...
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 ...
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 ...
Distributed operating systems: a study in applicability

Prange, J; Bishop, J (South African Computer Society (SAICSIT), 1999)

This study will attempt to show the path of research and development of a huge and currently implemented SCADA (Supervisory Control and Data Acquisition) system product. The designers and their managers have identified ...
An application of a framework for evaluation of the factors affecting software development productivity in the context of a particular organisational environment

Petkova, O; Roode, JD (South African Computer Society (SAICSIT), 1999)

The goal of this paper is to present the practical implementation of a novel framework for evaluation of the factors affecting software development productivity, combining elements from several systems approaches and ...
The development of a generic framework for the implementation of a cheap, component-based virtual video-conferencing system

Panagou, S; Bangay, S (South African Computer Society (SAICSIT), 1999)

We address the problem of virtual-videoconferencing. The proposed solution is effected in terms of a generic framework based on an in-house Virtual Reality system. The framework is composed of a number of distinct components: ...
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 ...
Improving object oriented analysis by explicit change analysis

Yu, L; Khong, SC; Xun, Y; Yuan, M (South African Computer Society (SAICSIT), 1999)

Changeability is one of the major concerns in software development. OO (Object-Oriented) technology itself is not enough to solve this problem, i.e. software systems cannot have enough changeability by just using any ...

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