GLOSS is a machine and language for modeling the semantics of programminglanguages. GLOSS is not intended to be a tool for mathematical proofs. Instead it is intended to provide an easily read graphical notation in w...
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Data translation is defined as the process whereby data stored in a form that can be processed on one computer (the source file) can De translated into a form (target file) which can be used by the same or different p...
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Data translation is defined as the process whereby data stored in a form that can be processed on one computer (the source file) can De translated into a form (target file) which can be used by the same or different processing systems on a possibly different computer. The research approach is to develop a generalized methodology of data translation and within this framework to design and implement a specific prototype translator. The current methodology for translating data and files from one system to another typically consists of writing file translation programs. This method, which involves writing a new program for each file to be translated, is often referred to as manual file translation. Because of the machine level detail required, these translation programs are typically written in assembly language. As a result, the programming time is large. Unfortunately, this methodology has the disadvantage of requiring a different program to be written for each pair of source and target files. Hence, for M source files and N target files, the total number of translation programs required for the translation is the product of M and N. This current state-of-the-art makes the generalization and automation of this process desirable. The general problem of data translation is a complex and pervasive issue. Aside from the two recent Ph.D. Dissertations [Taylor (1971) and Smith (1971)], there has been no research in this area. Both of these authors employ a Data Definition Language approach to the data translation problem and devote much of their work to specifying a Stored Data Definition Language to define stored data as it resides on common secondary storage devices. The CODASYL Stored Data Definition and Translation Task Group is currently combining and extending these two data definition languages into a single, complete Stored Data Definition Language (SDDL). Although the development of this language is fundamental to the implementation of a completely general data tra
The proceedings contain 17 papers. The topics discussed include: a translating computer interface for a network of heterogeneous interactive information retrieval systems;specifying queries as relational expressions;o...
The proceedings contain 17 papers. The topics discussed include: a translating computer interface for a network of heterogeneous interactive information retrieval systems;specifying queries as relational expressions;on the construction of effective vocabularies for information retrieval;comparative analysis of interactive retrieval systems;fol: a language for implementing file organizations for information storage and retrieval system;an evaluation of languages for the implementation of information storage and retrieval systems;from a data description point of view;and retrieval operations and data representations in a context-addressed disc system.
Horizontally microprogrammable computers provide the potential for efficient use of hardware through parallel operation of internal resources. Present languages for microprogramming such computers, however, contain un...
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Mioroprogramming a high-level language interpreter permits execution speeds to be achieved which rival large conventional systems. However, the limited size of current control memories imposes limitations on the compl...
The need for a network of heterogeneous interactive bibliographic information retrieval systems is projected from the facts of wide acceptance and growing demand for these systems and the limitations of their use caus...
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