BIT Numerical Mathematics

, Volume 5, Issue 2, pp 96–121 | Cite as

Information system design computations using generalized matrix algebra

  • Börje Langefors


In the introduction a presentation is given of the design problem for information systems as one of finding and implementing the maximum difference between value and cost. Design of information systems as done to-day is very much less ambitious. The present paper is concerned with some subproblems of interest in work for designing information systems for minimum cost, which is itself only a subproblem of the total design problem.

The paper presents some formalization by means of an extended matrix algebra which serves to enhance understanding of problems of information system design and to enable automatic computers to be used for design computations. This formalization is also a first step towards automatic design of information systems to prescribed specification.


Information System System Design Computational Mathematic Design Problem Maximum Difference 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. 1.
    B. Langefors,Some Approaches to the Theory of Information Systems. BIT, Bind 3 (1963), Hefte Nr. 4, pp. 229–254.Google Scholar
  2. 2.
    B. Langefors,Computation of Parts Requirements for Production Scheduling. BIT, Bind 2 (1962), Hefte Nr. 2, pp. 91–111.Google Scholar
  3. 3.
    B. Langefors,Flygtekniska beräkningar. Föredrag NordSAM 1959 Svenska Teknologföreningen. (Swedish with summary in English.)Google Scholar

Copyright information

© BIT Foundations 1965

Authors and Affiliations

  • Börje Langefors
    • 1
  1. 1.Forskningsgruppen för InformationsbehandlingVid Stockholms UniversitetStockholm 23Sweden

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