Development of a USMC Officer Assignment Decision Support System: General Design Specification.

摘要

This general design specification was completed as part of the Life Cycle Management (LCM) process for development of an Officer Assignment Decision Support System (OADSS). This document details user's requirements for enhanced capabilities for carrying out assignment of Marine Corps officers and describes the Automated Data Processing Equipment (ADPE) environment required to meet the proposed system's objectives. Deficiencies in the current assignment system, as well as capabilities of the proposed system designed to correct them, are summarized. General design specifications are based primarily upon derivation of the New Physical Model that was established via prescribed structured analysis techniques. This model is composed of three primary components: (1) data flow diagram, (2) data dictionary, and (3) mini-specifications governing the transformation of input data flows that mini-systems perform at the primitive functional level. A Data Flow Diagram (DFD) is provided to graphically represent data flows into and out of the seven functional mini-systems (processors). Also, an Entity-relationship Diagram (ERD) is presented that partitions data elements into homogenous groups or entities. Finally, factors such as organizational context, new performance characteristics, and information requirements affecting system development are discussed as well.