Theoretical Analysis of Information Systems

1st precedents ADP systems ALGOL algorithm associated assume basic bits block block size boundary operator branch called column common consolidation corresponding cost data processing data structure data transport decision defined denote determine digits directive information electric networks elementary files elementary message elements example f₁ feasible file scans file storage file transport volume flow formal function graph incidence matrix indicate information processing information sets information system input instance inventory kind magnetic tape matrix multiplication means memory space node object obtained operative information optimum output P⁰⁰ possible Pr(a pr(b precedence graph precedence matrix precedence relations problem procedure production properties record reduce refill order retrieval selection simple specified station subsystem structure succedents system design system point systems analysis systems theory tape term Theorem tion transaction updating vector