Yourdon structured methods provides a fast, flexible and well-defined route to cost-effective production of high-quality software. (Where quality is defined as conformance to specification). YSM's 'cook-book a...
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Yourdon structured methods provides a fast, flexible and well-defined route to cost-effective production of high-quality software. (Where quality is defined as conformance to specification). YSM's 'cook-book approach' to systems development is described and discussed. Various Yourdon-related methods are outlined, including: functional decomposition, event/response and object-oriented. A list of issues to be considered when taking on Yourdon is also presented.< >
The computer-based decision support system aimed at the operator in charge of planning the radio coverage of a GSM network. It is an off-line system providing tools to the user in order to match a geographical pattern...
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The computer-based decision support system aimed at the operator in charge of planning the radio coverage of a GSM network. It is an off-line system providing tools to the user in order to match a geographical pattern of statistical traffic with a model-based simulator of the network. By working on the basis of a model, the system allows in a very short time and at low cost the user to evaluate the performance of a network which is not yet implemented, or to evaluate and compare the results of possible modifications of an existing network. The main techniques which have been applied are knowledge-based systems (KBS), object-oriented modelling and interactive graphical user-interfaces.< >
The application of Ada and an object-oriented approach to the design and construction of advanced defence systems are both attracting increasing attention. The Ada language contains some support for object-oriented pr...
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ISBN:
(纸本)0852963947
The application of Ada and an object-oriented approach to the design and construction of advanced defence systems are both attracting increasing attention. The Ada language contains some support for object-orientedprogramming but has some notable deficiencies. The Ada object-oriented toolkit described here has been developed to remedy this by providing facilities to create and manipulate objects and to provide support for more general relationships between objects. Such features are especially useful when developing system elements using Knowledge Based System or Neural Network techniques. In this paper, the toolkit and preliminary applications are described.
The proceedings contains 6 papers. The topics discussed are: very large knowledge bases and their relationship to advanced database systems;active memory for structure manipulation;distributed objectoriented knowledg...
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The proceedings contains 6 papers. The topics discussed are: very large knowledge bases and their relationship to advanced database systems;active memory for structure manipulation;distributed objectoriented knowledge bases;an OODB with entity based persistence;CARDS - a knowledge-base engine;and large knowledge based applications in molecular biology and genetics.
This paper explores a variety of mappings between the neural network paradigm and the object-orientedprogramming model. For each of the proposed mappings the advantages and disadvantages are described with specific r...
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This paper explores a variety of mappings between the neural network paradigm and the object-orientedprogramming model. For each of the proposed mappings the advantages and disadvantages are described with specific reference to the development time and run-time efficiency of such mappings. Experimental results are presented for both a conventional machine architecture, a Sun Microsystems' Series 3 workstation, and an object-based computing system, the REKURSIV. These results indicate that the run-time penalty for using a compiled object-orientedprogramming language is not necessarily significant in neural network applications. Finally, the paper discusses, in more general terms, problems that might be encountered during the incorporation of a neural network-based subsystem into a conventional knowledge-based system.
Introduces the main concerns and development of a model for security in distributed systems. The threats which need to be addressed in any security model for distributed system are examined. The nature of object orien...
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Introduces the main concerns and development of a model for security in distributed systems. The threats which need to be addressed in any security model for distributed system are examined. The nature of objectoriented distributed systems is looked at in the security context and the outline of a model is drawn. Finally some issues on the use of the model are discussed.< >
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