Accession Number : AD0672090

Title :   A MATRIX TECHNIQUE FOR DESCRIBING REPORT DEPENDENCE IN INFORMATION SYSTEMS.

Descriptive Note : Technical paper,

Corporate Author : RESEARCH ANALYSIS CORP MCLEAN VA

Personal Author(s) : Harrison,Joseph O. , Jr

Report Date : FEB 1968

Pagination or Media Count : 36

Abstract : An information system is regarded as a set of interdependent reports together with the relations among them. Previous uses of matrices for describing the dependence of the output reports of such a system on the inputs are extended. Specific matrix representations giving the stage and multiplicity of the dependence of each report on every other are exhibited. It is also shown that an information system that is decomposable into disconnected subsystems corresponds to a matrix that can be partitioned into a diagonal matrix of square submatrices, one submatrix for each subsystem. The properties of each subsystem may be analyzed by means of its corresponding submatrix in the same way that the properties of the composite system are analyzed by means of the composite matrix. As an illustration, the technique is applied to a portion of one of the Army information systems: The Unit Readiness Reporting System, Active Army. Other related work is referenced and discussed briefly. (Author)

Descriptors :   (*REPORTS, *CORRELATION TECHNIQUES), MATRICES(MATHEMATICS), INFORMATION RETRIEVAL, DATA PROCESSING, SET THEORY

Subject Categories : Information Science

Distribution Statement : APPROVED FOR PUBLIC RELEASE