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I _IDALog No. HO 91-37619nn nn~nnu m ni u 1n.1-lNI~ i I |II DEFINITIONSIDA publishes the following documents to report the mutts t its work. ReportsReports are the most authoritative and most carefully considered products IDA publishes. IThey normally embody results of major projects which (a) have a direct bearing on decisions affecting major programs. (b) address issues of significant concern to the Executive Branch, the Congress and/or the public, or (c) address issues that have significant economic Implications. IDA Reports are reviewed by outside panels of experts to ensure their high quality and relevance to the problems studied, and they are released by the President of IDA. Group ReportsGroup Reports record the findings and results of IDA established working groups and panels composed of senior Individuals addressing major issues which otherwise would be the subject of an IDA Report. IDA Group Reports ar reviewed by the senior individuals responsible for the project and others as selected by IDA to ensure their high quality and relevance to the problems studied, and are released by the President of IDA. PapersPapers, also authoritative and carefully considered products of IDA, address studies that are narrower in scope than those covered in Reports. IDA Papers are reviewed to ensure that they meet the high standards expected of refereed papers in professional journals or formal Agency reports. Approved for public release; distribution unlimited. ABSTRACT (Maminm 200 wards)As part of the yearly planning process, OSD analysts assess the services' budget requests for secondary items. Although good planning dictates that these requests be judged by the effects of the budgets on inventories and the readiness and sustainability of the operating forces, these links have not been developed. This study takes the first step in providing such links by developing an aggregate model for use by OSD analysts to predict the future inventories of Navy spares. Inventories are predicted from spares budgets, Fleet characteristics that determine spares usage, and historical factors derived from past data. The model was constructed by identifying the principal flows of inventory in the supply system, and relating them to the inputs using simple linear expressions. The paper validates the model using data from the 1980-88 buildup, and illustrates the model's use in forecasting. Appendices briefly describe the inventory management systems of the three military services and cost-estimating relationships for spares usage by ships and aircraft. PA&E).Its purpose is to serve as a tool for appraising budget requests for spares by the military services. The model, which takes the form of a spreadsheet consisting of 48 lines, including 16 historical factors, has been delivered to PA&E on a floppy disk.Appendices to the study cover an overview of stock funding (Appendix A), introductions to the Navy, Army, and Air Force supply systems (Appendices B-D), and a description of efforts, using regression analysis, to construct relationships...

Sn ReportsReports am th moat athorftt nd most crefully considered products IDA publishes.They normally embody results of major projects which (a) have a direct hearing a declslna affecting major programs, (b) address lave of sinlflcont concern to the Executive Branch, the Congress and/or the public, or (c) address Issues that have significant eunsmfc implications. IDA Reports are reviewed by outside panels of experts to esmre their high quality and relevance to he problems studied, aM they are released by the President of IDA. Group Reports iGroup Reports record the findings and results of IDA established working groups and panels composed of senior individuals addressing major issues which otherwise would be the sublect of an IDA Report. IDA Group Reports are reviewed by the senior Individuals responsible for the project and others as selected by IDA to unsure their high quality and relevance to toe problem studied, and mre releaed by Mse President at IDA. PapersPapers, also authoritative and carefully considered prducts of IDA, address studies that are narrower in scope than tho covered it Reports. IDA Papers are reviewed to ensure that they moat the high standards expected of refereed papers in professional journals or formal Aency reports. DocumentsIDA Documents are used for the cenvenienco of the sponsors or tho analysts (a) to record substantive work done In quick reaction studies, (b) to record the proceedings of I conferences and meetings, (c) to make available preliminary and tentative rslts of analyses, (d) to record data developed In the coarse of an Investigation, or (e) to forward information that is essentially unanalyzed and unealuaded. The review of IDA Documents is sulted to their conet nd Intended uss. DoD Management Information Systems ................................................ EXECUTIVE SUMMARYThe Contractor Cost Data Reporting (CCDR) system is one of several cost data collection systems that were established to meet the rising demand for cost information that was fueled by the introduction and application of economic principles into defense management and resource allocation processes during the 1950s, 1960s, and 1970s. The need for records of actual cost experiences on major systems is driven by the requirements to use such data when developing cost estimates for proposed weapon systems approaching acquisition milestones and to prepare Cost and Operational Effectiveness Analyses (COEAs) at these milestones.This study was initiated following criticism encountered during two separate studies. First, government and contractor comments provided to the Joint DoD/Industry Total Quality Management Team in 1991 showed considerable dissatisfaction with the quality, usefulness, and use of the CCDR data. Secondly, the DoD Inspector General found that the CCDR system was not providing the benefits originally intended. Defense cost analysts were intended to use CCDR data to prepare cost estimates for major system acquisitions reviewed by the Defense Acquisition Board, to develop independent g...

DEFINITIONS IIDA publishes the following documents to report the results of its work. ReportsReports are the most authoritative and most carefully considered products IDA publishes. They normally embody results of major projects which (a) have a direct bearing on decisions affecting major programs, (b) address issues of significant concern to the Executive Branch, the Congress and/or the public, or (c) address issues that have significant economic implications. IDA Reports are reviewed by outside panels of experts to ensure their high quality and relevance to the problems studied, and they are released by the President of IDA. Group Reports IGroup Reports record the findings and results of IDA established working groups and panels composed of senior individuals addressing major issues which otherwise would be the subject of an IDA Report. IDA Group Reports are reviewed by the senior individuals responsible for the project and others as selected by IDA to ensure their high quality and relevance to the problems studied, and are released by the President of IDA. PapersPapers, also authoritative and cirefully considered products of IDA. address studies that are narrower in scope than those covered in Reports. IDA Papers are reviewed to ensure that they meet the high standards expected of refereed papers in professional journals ox formal Agency reports. DocumentsIDA Documents are used for the convenience of the sponsors or the analysts (a) to record substantive work done in quick reaction studies, (b) to record the proceedings of i conferences and meetings, (c) to make available preliminary and tentative results of analyses, (d) to record data developed in the course of an investigation, or (e) to forward information that is essentially unanalyzed and unevaluated. The review of IDA Documents is suited to their content and intended use.The work reported in this document was conducted under contract MDA 903 89 C 0003 for the Department of Defense. The publication of this IDA document does not indicate endorsement by the Department of Defense, nor should the contents be construed as reflecting the official position of that Agency. This Paper has been reviewed by IDA to assure that it meets high standards of I thoroughness, objeclavity, and appropriate analytical methodology and that the results, conclusions and recommendations are properly supported by the material presented.

ReportsReports are the most authoritative and most carefully considered products IDA publishes. They normally embody results of major protects which (a) have a direct bearing on decisions affecting major programs, (b) address issues of significant concern to the Executive Branch. the Congress and/or the public, or (c) address issues that have significant economic implications. IDA Reports are reviewed by outside panels of experts to ensure their high quality and relevance to the problems studied, and they are released I by the President of IOA. Group ReportsGroup Reports record the findings and results of IDA established working groups and panels composed of senior individuals addressing major issues which otherwise would be the subject of an IDA Report. IDA Group Reports are reviewed by the senior individuals responsible for the project and others as selected by IDA to ensure their high quality and relevance to the problems studied, and are released by the President of IDA. PapersPapers, also authoritative and carefully considered products of IDA, address studies that are narrower In scope than those covered in Reports. IDA Papers are reviewed to ensure that they meet the high standards expected of refereed papers in professional journals or formal Agency reports. Documents i IDA Documents are used for the convenience of the sponsors or the analysts (a) to record substantive work done in quick reaction studies, (b) to record the proceedings of conferences and meetings, (c) to make available preliminary and tentative results of analyses, (d) to record data developed in the course of an investigation, or (e) to forward information that is essentially unanalyzed and unevaluated. The review of IDA Documents is suited to their content and intended use.[The work reported in this document was conducted under contract MDA 903 89 C 0003 for 1 the Department of Defense. The publication of this IDA document does not indicate endorsement by the Department of Defense, nor should the contents be construed as reflecting the official position of that Agency.