TAIS: Difference between revisions

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== Studentenliiteratur ==

# Systems Theory

### Systematic Design of a Directive Information System

## Data and Information Files

## Files, Computations, and Processes

## Effect of a Process Grouping

## File Consolidation

## System Design Computation Using Matrix Algebra

## File Storage Considerations

## File Organizations

## System Reliability

# Some Data Processing Problems

## Relation between a Process and its Files

## Influence of Word Structure

This TOC, as reproduced here, is the normative designation by which I reference the text of the original document, not the original section numbering. A small number of copies of the work appear to be available online. The reader may safely take this TOC as a surrogate for the work under the presumption that its use as noted below will make its content clear and I have provided synoptic pages here for the critical sections.

TAIS is significant for several obvious reasons. One is historical. The work was published shortly after the introduction of the concept of Software Engineering and before the emergence of OOP, Design Patterns, and other currents which came to represent the mainstream of of systems analysis and design practice. Since Langefors actually developed his system during the even earlier period and thus to some extent its time and space complexity concerns seem archaic. The approach was developed over some time before the mid-1970s and so reflects a relatively low-level focus that seems quaint in a modern context. However the material culminating in the chapter on System Design Computation is of enduring value. I believe Langefors died a few years before the turn of the century and there was both a final work by him, related work by colleagues in ''Regnecentralen'' and other organizations, and related work from unrelated sources.  

== Role in '''ai-integration.biz''' ==

== Further Reading ==

¹ Lagefors, B. Fourth Edition, AUERBACH. 1973 ISBN 0-87769-151-7