Prepared for Office of the Under Secretary of Defense for Policy r I 93 8 3' 086 IDA Log No. HO 92-43096 DEFINITIONS3 IDA publishes tihl following documents to report the results of ts work. Reports Reports are the most autorftlalv and most carefully considered products IDA publishes.I They normally embody resuls of major projects which (a) have a direct bearing on declision affecting major programs, (b) a "es Issuevs of significant Coacera to the Executive Branch, the Congres anfr the public,

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... r (c) address MassuMesht have significant economic implications. IDA Reports ame raviewe by outside paoels of experts to esnore their high quality mad reloevnce to the problems studied, and the wre roleasedI Group Reports Group Reports record the fodleg and recalls of IDA establIshed working groups and panels composed of senio mldMduals addressing major Issues which Othe-wiso would he the subject of an IDA Report. IDA Group Reports are reviewed by the senior Indiviual responsible for the project and others as solected byIDA to ensure theirbhigh quality and relevance to the problemn studied, and are released by the President of IDA. Papers Papers, also authoritative and carefully considered prodects of IDA, address studies; Mtha are narrower In scope than these. covrd in Reports. IDA Papers are reviwed to ensure that they meet the high standard expected of refereed papers In professional journals or formal Agency reports. Documents IDA Documents are used for the convenience of the sponsors or the analysts (a) to recor substantiv work doans In quick reaction studIes, (b) to record the proceedings of conferences and meetings, (c) to make avaitable preliminary and tentatfive results ofI anslyses, (d) to record data developed in the course oflan Investiglation, or (e) to torward Information that Is essentially unanslyzed and unovainated. The review of IDA Documents ls suited to their content and intended usse. [The work reported in this document wee conducted under contract MDA U03 89C 000 tor the Department 0f Defense. The publication of this IDA document does not Indicate endorsement by the thparte t of Dl nsor should the constents he construd as Renview of this material does not imply Department of Defense lindorsernenit of lactua Iaccuracy or opinion. R DForm Approved REPORT DOCUMENTATION PAGE OMB No. 0704-0188 puiblic rling burden for Of altc ollme i of natioa is d•insted to average i hour pet repnslm. incuding the fime far reviewing istructions. watching existing daft aource.. gathering and " 06 f the data needed, and conpleting and reviewing the colecllon of Infomation. Send coarients regarding this buaden esurnts or any athr aspect of this coaictin of infoiaabon. inc sdungess tor reducing this bltden. to Washington Headquarters Services. Directorate for inornation Operations and Reports, 1215 Jefferson Davis Highway. Suite 1i24. Aurington. VA 22.430M. and to the offic cif Manageru and Budget, Paperwork Reduction PRod (0704-O18), Washington, DC 2060•.