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Browsing South African Computer Journal 1990(1) by Type "Article"

Browsing South African Computer Journal 1990(1) by Type "Article"

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  • A design environment for semantic data models 
    Kambanis, J. (South African Institute of Computer Scientists and Information Technologists, 1990)
    This paper describes the functionality and architecture of a Semantic Data Modeling environment. It integrates User Interface techniques used in Computer Aided Software Engineering-and Expert Systems shells into a system ...
  • Finding regular paths in acyclic graphs 
    Wood, PT (South African Institute of Computer Scientists and Information Technologists, 1990)
    Increasing the expressive power of relational query languages by providing some form of recursion is currently a topic of much research. For many recursive queries in relational databases, a relation can be represented ...
  • Four major success criteria for information system design 
    Mende, J. (South African Institute of Computer Scientists and Information Technologists, 1990)
    Both in the advancement of Information Systems theory and in practical development projects, significant errors of omission can occur unless one is aware of all aspects of the concept "information system success". At least ...
  • Image reconstruction via the Hartley transform 
    Murrell, HC; Carson, D (South African Institute of Computer Scientists and Information Technologists, 1990)
    The continuous and discrete Hartley transforms are real valued transforms that have similar properties to the continuous and discrete Fourier transforms. In addition, a fast algorithm exists for computing the discrete ...
  • A multi-criteria partitioning technique for information system design 
    Mende, J. (South African Institute of Computer Scientists and Information Technologists, 1990)
    In order to design and operate a complex computer based information system, one needs to partition its transformation process into modules of manageable size. The same process can be partitioned in many different ways, ...
  • The NRDNIX distributed database management system 
    Rennhackkamp, MH (South African Institute of Computer Scientists and Information Technologists, 1990)
    A distributed database management system must facilitate integrated processing of data which is physically distributed over a network of node computers, while providing locality transparency. The NRDNIX prototype has ...
  • Programming using induction 
    Mueller, C.S.M. (South African Institute of Computer Scientists and Information Technologists, 1990)
    Induction has been used as a major tool in mathematics in proving theorems. This paper explores whether it has an equally important role in formulating programs. There are those who advocate that induction should be used ...
  • The use of a lattice for fast pattern matching 
    Oosthuizen, GD (South African Institute of Computer Scientists and Information Technologists, 1990)
    Pattern recognition involves the matching of a given pattern against a collection of patterns in store in order to identify the given pattern as belonging to a particular class already known to the system or not. Similarly, ...

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