Knowledge Base Repository
In addition to research papers, the Design Society is developing several valuable resources for those interested in the study of design. These include a repository of PhD theses, a library of case studies and transcripts of design activities, and an archive of our newsletters. Please note that these resources are accessible exclusively to Design Society members.
Investigation of Change in Specifications During a Product's Lifecycle
Sudin, Mohd Nizam; Ahmed, Saeema
Type:
Year:
2009
Editor:
Norell Bergendahl, M.; Grimheden, M.; Leifer, L.; Skogstad, P.; Lindemann, U.
Author:
Series:
ICED
Section:
Design Information and Knowledge
Page(s):
371-380
Abstract:
Engineering changes (ECs) constitutes a normal part of a product?s lifecycle. This paper aims to understand why changes are made to a product's specification during a product's lifecycle including understanding: the distribution of changes, the drivers for changes, how changes are discovered, which design attributes likely be changed, the initiation of change and how change in specifications are described. For this purpose, document analysis for a complex product has been carried out. In total, 271 reports of change request of an aero-engine that were associated to change in specifications were examined qualitative and quantitatively. Several patterns of the change in specifications were quantified and observed. The findings showed that the majority of changes were found in the manufacture/build and testing phase and most of these changes were described in terms of need and solution regardless of how the request was initiated. The study showed that experience plays a vital role in discovering the need to change a complex product.
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