Structured Design: Fundamentals of a Discipline of Computer Program and Systems Design

activation afferent data element afferent module agenda approach assembly language bottom-up bugs Chapter COBOL complete computer systems coroutine cost coupling data flow diagram data flow graph debugging decision defined discussed EDWARD YOURDON efferent data efficiency error example execution factoring fan-in field flowchart FORTRAN function hierarchy identifier implementation incremental input input-output interface intermodular involves iteration lexical load unit loop low-level module macro Master File master item master record matrix modification Modular Programming modular structure modular systems normal operating system optimization organizations output packaging parameters pathological connections perform PL/I problem procedural processing elements record recursion reference relationship result scope of effect sequence sequential shown in Fig simulation specific statements strategy structural design structure chart structured programming subcoroutine subordinate module subroutine subroutine call subsystem superordinate systems analyst systems design text string tion trans transaction analysis transaction center update valid