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IBM Systems Journal

Issue 4 • Date 1977

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Displaying Results 1 - 10 of 10
  • Preface

    Publication Year: 1977, Page(s):322 - 323
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (623 KB)

    In the two previous issues, we concentrated on papers concerning data base and data communications-exploring several systems in detail, evaluating design aids, and surveying the topics' history and current literature. This issue continues our look at data bases, emphasizing the usability and cost aspects. View full abstract»

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  • Query-by-Example: A data base language

    Publication Year: 1977, Page(s):324 - 343
    Cited by:  Papers (99)  |  Patents (11)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1702 KB)

    This paper has presented an overview of retrieval, manipulation, and definition by the Query-by-Exammple language. One of the unique features if this language is that very few concepts need be learned for one to start using the system. View full abstract»

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  • Design techniques for a user controlled DB/DC system

    Publication Year: 1977, Page(s):344 - 362
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1712 KB)

    Implementation of PDCC at the Rochester laboratory has led to an increase in programmer productivity because of a reduction in application coding, easier program maintenance, and ease of change. User response has been good. The user's requirements have been met in terms of customization of displays and capabilities, authenticity and consistency of data, and ease of use in a display-work-station en... View full abstract»

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  • Storage and access in relational data bases

    Publication Year: 1977, Page(s):363 - 377
    Cited by:  Papers (40)  |  Patents (11)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1549 KB)

    Using the observations in this paper, a query translator could operate in the following manner. From the available access paths, determine the applicable methods and cases, eliminate any obviously bad methods, discard any methods that fail to pass certain simple tests (such as, for example, F1 < l/E1) , and then evaluate the cost estimates for the remaining methods. Ch... View full abstract»

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  • MARC: MVS archival storage and recovery program

    Publication Year: 1977, Page(s):378 - 397
    Cited by:  Papers (1)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1857 KB)

    MARC has been operating at IBM Hursley and Yorktown Heights since early 1976, and at the IBM acility in Burlington, Vermont since September, 1976. As of January, 1977, there were about eleven thousand migrated data sets at Hursley, and about twelve thousand at Yorktown Heights. The Level 0 on-line storage at Yorktown Heights, for example, contains approximately two thousand three hundred data sets... View full abstract»

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  • An input-output econometric model

    Publication Year: 1977, Page(s):398 - 420
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1866 KB)

    Input-output models are used to forecast various effects that can occur to an industry as it interacts with other industries under changing conditions in the general economy. The conceptual framework for such models was established many years ago by such economic theoreticians as Quesnay (1758) and Leon Walras (1877) and, more recently, Leontief. As is readily apparent, these interindustry interac... View full abstract»

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  • On lines of code and programming productivity [Forum]

    Publication Year: 1977, Page(s):421 - 423
    IEEE is not the copyright holder of this material | PDF file iconPDF (874 KB)
    Freely Available from IEEE
  • Authors

    Publication Year: 1977, Page(s):424 - 425
    IEEE is not the copyright holder of this material | PDF file iconPDF (606 KB)
    Freely Available from IEEE
  • Abstracts

    Publication Year: 1977, Page(s):426 - 427
    IEEE is not the copyright holder of this material | PDF file iconPDF (756 KB)
    Freely Available from IEEE
  • Volume 16, 1977

    Publication Year: 1977, Page(s): 428
    IEEE is not the copyright holder of this material | PDF file iconPDF (648 KB)
    Freely Available from IEEE

Aims & Scope

Throughout its history, the IBM Systems Journal has been devoted to software, software systems, and services, focusing on concepts, architectures, and the uses of software.

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Meet Our Editors

Editor-in-Chief
John J. Ritsko
IBM T. J. Watson Research Center5