A parallel semantic net engine and its application to data modeling
Authors: Lee, Y. N.
Although the use of Fourth Generation Languages has greatly increased the efficiency of the system development process, the validation of system specifications is still considered to be complicated and time-consuming. A "Parallel Semantic Net Engine (PSNE)" has been developed as part of a research project carried out in the Department of Computer Science at Exeter University to investigate into this area. This project was initiated by a software house, Softwright Systems Ltd., which has made extensive use of Fourth Generation Languages.The purpose of this project was to construct an engine which would be fast enough to validate a system specification in realtime, giving immediate feedback to the user when constraints are violated. The areas of knowledge representation and parallel processing were explored. A Parallel Semantic Net Engine was proposed in order to take advantage of the richness of semantic networks in representing complicated relationships and the power of transputers in speeding up the processing. Figure 1 shows the general model of the PSNE.The model is distributed over of a host PC and a network of transputers. On the PC side, there are the application generator, generated applications and a standard relational database which stores the application data. A front-end would be developed running on the PC to act as the gateway for data passing between the PC and the transputers.
OUG-12: Tools and Techniques for Transputer Applications, Stephen J. Turner, 1990, pp 22 - 33 published by IOS Press, Amsterdam
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