AN INDIVIDUAL SYSTEM/ORGANIZATION COST MODEL. VOLUME III. THE TACTICAL AIR DEFENSE (TAD) MODEL: A TIME-PHASED ISOC APPLICATION.

Abstract : The Individual System/Organization Cost (ISOC) Model as modified for this work is called the Tactical Air Defense (TAD) Model. The TAD Model consists of two distinct programs: the ISOC Model as specifically constructed for the air defense system (Phase 1) and the cost-lagging program (Phase 2). Chapter 1 describes the construction of Phase 1 of the TAD Model using the standard ISOC format. Emphasis is placed on the novel features of the TAD application. A major deployment option is represented by a single run; within that run each alternative represents deployment of a majo organizational unit in the first program year with deployment changes over time effected through use of data-change sets; special tape output of deployment costs is written for further processing in Phase 2. The TAD Phase 1 cost-category structure, the format of the Phase 1 card deck, and Sample Phase 1 output are presented. Chapter 2 discusses the requirement for Phase 2 of the TAD Model and its formulation and operation. Phase 2 of the TAD Model was required to process the deployment-costs output by Phase 1 by lagging them to an obligational authority base and producing yearly summaries by force unit and appropriation category. Two tasks were necessary: the analysis of the data to determine the appropriate lagging procedure and the construction of a computer program to carry out the necessary processing. Analytical difficulties in deriving appropriate 'lag patterns' are discussed briefly. A lag pattern describes what proportion of total deployment cost must be authorized for expenditure in each of the preceding years for delivery schedules to be met. (Author)