Cover: The MIND System

The MIND System

The Structure of the Semantic File

Published 1970

by Martin Kay, S. Y. W. Su

Download

Download eBook for Free

FormatFile SizeNotes
PDF file 2.1 MB

Use Adobe Acrobat Reader version 10 or higher for the best experience.

Purchase

Purchase Print Copy

 Format Price
Add to Cart Paperback70 pages $20.00

One of a series of Memoranda describing the design, implementation, and use of the MIND system, this study provides a detailed description of the way in which the main fact file of the MIND information-management system is organized. The format of each type of record is given in the form of a declaration in the PL/1 programming language. A method is described for organizing long lists of items so that any desired entry on the list can be retrieved with a minimum of accesses (usually one) to the disk. Also included is a set of computer procedures which can be incorporated into any program that has cause to refer to the file. These make it easy to store and retrieve information and to relieve the programmer of the necessity of bearing all the details of the file representation constantly in mind.

This report is part of the RAND research memorandum series. The Research Memorandum was a product of RAND from 1948 to 1973 that represented working papers meant to report current results of RAND research to appropriate audiences.

This document and trademark(s) contained herein are protected by law. This representation of RAND intellectual property is provided for noncommercial use only. Unauthorized posting of this publication online is prohibited; linking directly to this product page is encouraged. Permission is required from RAND to reproduce, or reuse in another form, any of its research documents for commercial purposes. For information on reprint and reuse permissions, please visit www.rand.org/pubs/permissions.

RAND is a nonprofit institution that helps improve policy and decisionmaking through research and analysis. RAND's publications do not necessarily reflect the opinions of its research clients and sponsors.