The paper describes an extensible communication system for Conic, an architecture for distributed embedded systems. Conic provides a high level programming language with interprocess communication primitives suited to...
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The paper describes an extensible communication system for Conic, an architecture for distributed embedded systems. Conic provides a high level programming language with interprocess communication primitives suited to both local and remote communication. These primitives are sufficiently powerful to be used for applications programming yet simple and efficient enough for programming system software. The communication system which supports these primitives is itself implemented in the Conic language. It provides a very simple datagram-like service, over interconnected local area networks. The configuration flexibility of Conic is exploited to allow extension of the basic communication system to give additional services such as virtual circuit or routing. The paper also relates the Conic communication system to the ISO Reference Model and indicates some of the problems of using the model. An earlier version of this paper was presented at the 5th IFAC Workshop on Distributed Computer Control Systems, Sabi Sabi, South Africa, May 1983.
TAXIS, a language for the design of interactive information systems (e.g., credit card verification, student-course registration, and airline reservations) is described. TAXIS offers (relational) database management f...
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This paper describes TAXIS, a language for the design of Interactive Information Systems (e.g., credit card varification, student-course registration and airline reservations). TAXIS offers (relational) database manag...
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ISBN:
(纸本)9781450373425
This paper describes TAXIS, a language for the design of Interactive Information Systems (e.g., credit card varification, student-course registration and airline reservations). TAXIS offers (relational) database management facilities, a means of specifying semantic integrity constraints and an exception-handling mechanism, integrated into a single language through the concepts of class, property and the ISA (generalization) relationship. The paper includes a description of the main constructs of TAXIS and illustrates their usefulness with examples.
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