Principles of Information Systems Analysis and Design

procedure statements, definition of, 1 53 Accidental data, definition of, 120 Activities management of, 278-280 in project networks, 275 in system development process, 28-29, 262 in system development spiral, 263 Activity objective, 278 proposal, 279 schedule, 278 stages, 278-280 statement of work, 278 Activity evaluation, in management li­ brary, 298 Activity plans, in management library, 298 Add2 example BDL black box of, 79 black box definition of, 42 initial conditions in , 43-44 state machine definition of, 97-98, 1 24 Alternation control structure in BDL, 1 36 as black box structure, 68-7 1 as clear box construct, 8, 135 Analysis of black box structures , 64-72 of box structures, 2 1 0-224 definition of, 209 in specification, 287 use of derivation in, 27 Analysis library definition of, 209, 270 introduction to, 27 use of, 297-298 Applicant processing example clear box construction for, 1 561 58 clear box expansion for, 1641 65 clear box simplification for, 1 58164 natural procedure of, 152 sequence and alternation construction, 1 531 56 structure abstraction of, 1 53I 54 Arms length relationships, in organizations, 73 Arrays, definition of, 375 Attributes, in data representation, 376 Auditability as category of integrity, 34 in transaction closure, 209