Title page for ETD etd-32298-92727

Type of Document Dissertation
Author Eaglesham, Mark Alan
Author's Email Address eagleshm@vt.edu
URN etd-32298-92727
Title A Decision Support System for Advanced Composites Manufacturing Cost Estimation
Degree PhD
Department Industrial and Systems Engineering
Advisory Committee
Advisor Name Title
Deisenroth, Michael P. Committee Chair
Killough, Larry N. Committee Member
Mason, William H. Committee Member
Sullivan, William G. Committee Member
Van Aken, Eileen M. Committee Member
  • manufacturing cost
  • activity costs
  • design decision support
  • composites
Date of Defense 1998-04-10
Availability unrestricted
The increased use of advanced composites in aerospace manufacturing has led to the

development of new production processes and technology. The implementation of

advanced composites manufacturing technology is poorly served by traditional cost

accounting methods, which distort costs by using inappropriate volume-based

allocations of overhead. Activity-based costing has emerged as a methodology which

provides more accurate allocation of costs to products or activities by their usage of

company resources. Better designs may also be produced if designers could evaluate

the cost implications of their choices early in the design process. This research

describes a methodology whereby companies can improve product cost estimation at

the conceptual design phase, using intelligent searching and arrangement of existing

accounting data to enable designers to access the activity cost information more

readily. The concept has considerable scope for application in industry because it will

allow companies to make better use of information that is already being recorded in

their information systems, by providing it in a form which will enable designers to make

better informed decisions during the design process. The design decision support

framework is illustrated by applying it to a typical problem in aerospace composites

manufacturing. Feasibility of the approach is demonstrated using a prototype software

model of the Design Decision Support System, implemented using commercially

available software.

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