NDLI: A Process-Centric Problem Formulation for Decision-Based Design

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Stephanie, C. Thompson Christiaan, J. J. Paredis
Copyright Year	2009
Abstract	Although recent work in Decision-Based Design (DBD) recognizes the need for an enterprise perspective in which the expected net revenue is the primary driver of utility, for the overwhelming majority of contributions in the DBD literature, the emphasis in the problem formulation is exclusively on the design artifact. This formulation of DBD problems is too narrow in scope, in that the use of resources during the design and development phase is overlooked. This omission makes it impossible to consider tradeoffs between the design artifact and the design process. In this paper, we reformulate the DBD problem in terms of the design process rather than the artifact. This new formulation more accurately represents the tradeoffs under consideration in an enterprise context and simplifies to the traditional DBD formulation if design phase resource use is assumed to be negligible. As a first step towards establishing this new formulation, a simple example problem is introduced and solved. The example involves a choice between two concepts, with an option to perform an analysis to reduce the uncertainty. Although several simplifying assumptions are made in this work that are not likely to apply in practical design problems, the intent of this work is to qualitatively explore the impact of relaxing some of the assumptions made implicitly in previous work in DBD. These assumptions include ignoring the costs of the design phase as well as the assumption that the value of a particular information source is independent of the ability to gain additional information from subsequent analyses. Solving the design process decision problem in this manner confirms the intuition that an analysis is worth performing only when the cost is low, the quality is high, and there is significant overlap in the predicted utility of the two concepts. In addition, this new DBD formulation is compared to related work in information economics, and we show that the new DBD formulation provides a more comprehensive model of the problem when a sequence of information sources is available.
Sponsorship	Design Engineering Division and Computers in Engineering Division
Starting Page	753
Ending Page	762
Page Count	10
File Format	PDF
ISBN	9780791849057
DOI	10.1115/DETC2009-87421
e-ISBN	9780791838563
Volume Number	Volume 8: 14th Design for Manufacturing and the Life Cycle Conference; 6th Symposium on International Design and Design Education; 21st International Conference on Design Theory and Methodology, Parts A and B
Conference Proceedings	ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
Language	English
Publisher Date	2009-08-30
Publisher Place	San Diego, California, USA
Access Restriction	Subscribed
Subject Keyword	Design Economics Uncertainty Tradeoffs
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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