Neang I. Om - Storming Media

Functional Cost-Estimating Relationships for Spacecraft

FEB 96

Authors: Neang I. Om; James K. Roth; Melissa L. Corso; Jennifer A. Titus; INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA

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The costs to acquire space-based missile defense systems are often reviewed by DoD. Issues are raised concerning the cost models used to generate cost estimates for space-based missile defense systems. The Ballistic Missile Defense Organization questions the use of traditional weight-based spacecraft cost models developed by the Air Force Space and Missile Systems Center. The concern is motivated by changes in satellite designs of future systems where smaller but more ...

Schedule-Assessment Methods for Surface-Launched Interceptors

AUG 95

Authors: Bruce R. Harmon; Neang I. Om; INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA

The research documented in this report was initiated to provide representatives of the Ballistic Missile Defense Organization (BMDO) with methods for assessing the reasonableness of proposed acquisition schedules for surface-based interceptor elements of proposed missile defense architectures. Such methods should reproduce schedules typical of analogous historic systems while accounting for schedule variations associated with differing technical or program characteristics. IDA collected historical schedule and technical data on 22 surface-launched interceptor ...

Estimating Software Development Costs and Schedules for Space Systems

MAY 94

Authors: James Bui; Neang I. Om; INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA

This paper analyzes historical software development costs and schedules from military and NASA satellite systems. Cost-and time-estimating relationships were developed for ground segment and embedded flight software. In addition to the traditional size variable, other cost drivers were found: software residence (ground or flight), and software type (application and support). Schedule driving variables included size, staffing level, and residence. The equations developed from the study can be used to estimate ...

Assessing Acquisition Schedules for Unmanned Spacecraft

APR 93

Authors: Bruce R. Harmon; Neang I. Om; INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA

The research documented in this report was initiated to provide methods for assessing the reasonableness of proposed acquisition schedules for space-based elements of proposed SDS architectures and for the software associated with both space- based and ground-based segments of these systems. The approach used in accomplishing this task was to: (1) review the relevant literature; (2) collect historical schedule and technical data on acquisition programs for unmanned spacecraft; (3) compile ...

The Effects of Management Initiatives on the Costs and Schedules of Defense Acquisition Programs. Volume 1. Main Report

NOV 92

Authors: Karen W. Tyson; Neang I. Om; D. C. Gogerty; J. R. Nelson; Daniel M. Utech; INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA

This two-volume paper examines trends in the outcomes (in terms of costs and schedules) of the acquisition programs for major weapon systems, and assesses the effectiveness of management initiatives in improving these outcomes. IDA analyzed a total of 116 major programs that included a mix of aircraft, tactical munitions, electronics/avionics, strategic missiles, satellites, vehicles, and ships. In Volume I of the paper, program outcomes are assessed by equipment type, by ...

The Effects of Management Initiatives on the Costs and Schedules of Defense Acquisition Programs. Volume 2. Analyses of Ground Combat and Ship Programs

NOV 92

Authors: Karen W. Tyson; Neang I. Om; D. C. Gogerty; J. R. Nelson; INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA

Issues in Measuring Cost Growth

SEP 90

Authors: Karen W. Tyson; Stephen J. Balut; Neang I. Om; Stephen K. Welman; INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA

The authors examine measures of cost growth for major weapon systems. Measures used in the past for both single and multiple programs and for both defense and non-defense systems are reviewed. The advantages and disadvantages of these measures are discussed and recommendations for appropriately measuring and forecasting cost growth in the future are presented.

Analyses of a Coproduction Acquisition Strategy for the Light Helicopter Program (LH)

APR 90

Authors: William J. Shafer; Barbara J. Junghans; Neang I. Om; Paul R. Palmer Jr.; Joseph W. Stahl; INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA

The purpose of this study was to assess the potential cost savings of using a coproduction versus a competition acquisition strategy for the U.S. Army's Light Helicopter (LH) program (formerly LHX). The Army's Baseline Cost Estimate (BCE) is examined and reproduced before adjustments are made based on changes in the methodology used by the Army. The analysis of costs covers all production costs and considers the time value of money, ...

Acquiring Major Systems: Cost and Schedule Trends and Acquisition Initiative Effectiveness

MAR 89

Authors: Karen W. Tyson; J. Richard Nelson; Neang I. Om; Paul R. Palmer; INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA

This paper examines trends in the outcomes (in terms of costs and schedules) of major weapons system acquisition programs and assesses the effectiveness of management initiatives in improving these outcomes. Program outcomes are assessed by equipment type (including aircraft, tactical munitions, electronics, strategic missiles, and satellites), by time period, by phase (development and production), and by type (new or modification). The major drivers of total program cost growth are also ...