CYCIS: A Child and Youth Centered Information System. Phase II: System Design. Volume IV: CYCIS System Design

摘要

The Child and Youth Centered Information System (CYCIS) structure is described in terms of component functions and system programming requirements necessary for implementation. Key topics addressed in the overview are overall functional scope of CYCIS, implications of transferability of system design, and pertinent design methodologies used for CYCIS system architecture. CYCIS consists of four functional components: intake and case management, referral services, adoption exchange, and program management. The system modules, or programs, implied by the transaction matrices were developed for each component from functional flow charts and general narrative. These modules are of three types: (1) Level I Executives; (2) Level II Transaction Modules; and (3) Level III Processing Functions. The Level I Executives function at the highest level as table - oriented, parameter - driven, process control programs and control the following kinds of tasks: CYCIS master file creation, CYCIS update transactions, CYCIS inquiry / reporting transactions, file reorganization and backup / recovery, and system file maintenance and support. The Level II Transaction Modules function at a secondary level as dependent subprograms and control specific internal tasks for the following groups of transaction types: security checks, data validation, data conversion, data extraction, output reporting, file search and update, and audit trail and job accounting. Level III Processing Functions, the most elementary segments of the hierarchical module structure, describe the following tasks: record access for a particular master file, validation of a particular data element, and internal sorting of a group of records. The appendices show the three levels for each of the four components. Each of these modules is described in terms of input / output requirements, processing function, and system interface specifications.