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1998 National Research and Development Conference
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Recent submissions

1998 National Research and Development Conference: Recent submissions

Now showing items 21-40 of 44

Design of a scalable video on demand architecture

Machanick, P (1998)

The SAVoD (Scalable Architecture for Video on Demand) approach to video on demand exploits the fact that end-user latency goals are relatively modest, while increasing bandwidth is much easier than improving bandwidth. ...
Implications of emerging DRAM technologies for the RAMpage memory hierarchy

Machanick, P; Salverda, P (1998)

The RAMpage memory hierarchy is an attempt at devising a comprehensive strategy to address the growing DRAM-CPU speed gap. By moving the main memory up a level to the SRAM currently used to implement the lowest-level ...
Disk delay lines

Machanick, P (1998)

Latency goals often relate to response times seen by users, which are slow by computer standards, but scaling up to large numbers of users presents a problem. Examples include transaction-based systems and web sites. ...
The skills hierarchy and curriculum

Machanick, P (1998)

A commonly accepted hierarchy of cognitive skills puts analysis and synthesis near the top, with straightforward knowledge and comprehension at the bottom. A typical Computer Science curriculum, though, usually starts ...
A conceptual model for the adoption and use of CASE technology

Huisman, HM (1998)

The software crisis has been well documented. Software is being delivered late, over budget and full of residual faults. In an attempt to solve these problems, CASE technology has been developed. CASE technology provides ...
Managing large programming classes using computer mediated communication and cognitive modelling techniques

Harmse, RG; Pullen, G (1998)

This paper describes a proposed solution to address some of the problems encountered when attempting to teach programming to a large number of students with diverse backgrounds and vastly different levels of technological ...
A framework for information systems and national development research

Licker, PS (1998)

This paper develops a multidimensional framework to look at the role that information systems can play in the field of National Development. While there are already several frameworks, these are aimed at the employment ...
Management aspects of client/server computing

Langa, S (1998)

The purpose of the research is to investigate the management aspects of client/server computing. The latter is seen as a prerequisite for better management of all aspects of client/server computing. Noting the fact that ...
On problem structuring in an electronic brainstorming (EBS) environment

Kunene, KN; Petkov, D (1998)

Research in the field of Group Decision Support Systems (GDSS) has focused on the following main issues: the Task (task complexity, clarity and rationality); the Individual (the profile of individual group members); the ...
A partitioning scheme for solving the exact K-item 0-1 knapsack problem

Kruger, MF; Hattingh, JM (1998)

Our investigation on the impact of partitioning the search space of the classical 0- 1 Knapsack Problem through the inclusion of equality constraints on the knapsack's cardinality, has given rise to the study we undertook ...
Effective information security monitoring using data logs

Krige, W; Von Solms, R (1998)

Log files or audit logs are files that record information about events that occur on a computer system at all times, that is if the log files are configured correctly. Most information security officers do not use this ...
Hardware system interfacing with Delphi 3 to achieve academic integration between the fields of computer systems and software engineering

Joubert, A; Jordaan, A (1998)

This paper explores the use of dive computer downloader units and Delphi 3 object-oriented structures to integrate the fields of Computer Systems and Software Engineering in the academic environment. Currently there is a ...
Quality considerations of real time access to multidimensional matrices

Janssen, F (1998)

This paper investigates the quality considerations of real time access to multidimensional matrices. Researchers have emphasised the relationship between multidimensional matrices and data warehousing in the past; the ...
Binary decision diagram representations of firewall and router access lists

Hazelhurst, S; Fatti, A; Henwood, A (1998)

The growth of network and internet communication creates several challenges for network design. Two important issues are security and performance. As the volume of communication increases together with the importance of ...
Quality aspects of the development of a rule-based architecture

Chalmers, C (1998)

This paper provides an insight into how the various quality requirements defined for a specific tool are met in its development cycle. Focus is on a specific subset of the rule-based architecture project, which covers the ...
Academic CS/IS infrastructure in South Africa; an exploratory stakeholder perspective

Bytheway, A; Hearne, G (1998)

In considering the requirements of an academic infrastructure that might support computer science and information systems education in South Africa, it is easy to be driven solely by the opportunities that innovative ...
Practical experience in running a virtual class to facilitate on-campus undergraduate teaching

Brown, S (1998)

This paper discusses the current use of an Internet Education Support Program (IESP). This software package uses Internet-based tools which allows the educator to use collaborative learning techniques in both face-to-face ...
exA security interpretation of the workflow reference model

Botha, RA; Eloff, JHP (1998)

This paper is intended as an opinion paper regarding information security concerns in the Workflow Reference Model (WfRM) as defined by the Workflow Management Coalition (WfMC). After an introduction into the workflow ...
Partial edge visibility in linear time

Bilbrough, J; Sanders, I (1998)

This research addresses the problem of partial edge visibility. This problem stems from work done in the ray guarding of configurations of adjacent rectangles [7]. In ray guarding these configurations it is necessary to ...
Critical success factors for implementation of decision support systems

Averweg, UR; Erwin, GJ (1998)

Decision Support Systems (DSS) are used to support decision-making for a non-structured management problem. DSS utilises data, provides an effective user interface and allows for the decision maker's insights to be ...

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