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A system complexity approach for the integration of product development and production system design

IP.com Disclosure Number: IPCOM000128102D
Original Publication Date: 1999-Dec-31
Included in the Prior Art Database: 2005-Sep-14
Document File: 7 page(s) / 25K

Publishing Venue

Software Patent Institute

Related People

Kim, Yong-Suk: AUTHOR [+3]

Related Documents

http://theses.mit.edu:80/Dienst/UI/2.0/Describe/0018.mit.theses/1999-117: URL

Abstract

Complexity is generally believed to be one of the main causes of present difficulties in plant design and control. The complexity of a manufacturing system cannot be viewed without considering the products produced in the system. Lack of understanding in this relationship may lead to difficulties in product portfolio design and manufacturing system design. In this thesis, it is shown that by designing a manufacturing system properly, we can manage increased product variety while simultaneously eliminating system complexity. In addition, this thesis explains how `lean' concepts eliminate system complexity.

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 This record is the front matter from a document that appears on a server at MIT and is used through permission from MIT. See http://theses.mit.edu:80/Dienst/UI/2.0/Describe/0018.mit.theses/1999-117 for copyright details and for the full document in image form.

A SYSTEM COMPLEXITY APPROACH FOR THE INTEGRATION OF PRODUCT DEVELOPMENT AND PRODUCTION SYSTEM DESIGN

by

Yong-Suk Kim
Bachelor of Science in Engineering Mechanical Engineering Seoul National University, 1997 Submitted in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE at the Massachusetts Institute of Technology June 1999
SIGNATURE OF author: [[signature omitted]]

Yong-Suk Kim

Department of Mechanical Engineering
May 7, 1999
CERTIFIED BY: [[SIGNATURE OMITTED]] David S. Cochran

Assistant Professor of Mechanical Engineering Thesis Supervisor ACCEPTED BY: [[SIGNATURE OMITTED]]

Ain. A. Sonin

Chairman, Department Committee on Graduate Students

ARCHIVES MASSACHUSETTS INSTITUTE OF TECHNOLOGY LIBRARIES JUL 12 1999

Massachusetts Institute of Technology Page 1 Dec 31, 1999

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A system complexity approach for the integration of product development and production system design

[2]

A SYSTEM COMPLEXITY APPROACH FOR THE INTEGRATION OF PRODUCT DEVELOPMENT AND PRODUCTION SYSTEM DESIGN

By Yang-Suk Kim

Submitted to the Department of Mechanical Engineering on May 7, 1999 in partial fulfillment of the Requirements for the Degree of Master of Science

ABSTRACT

Complexity is generally believed to be one of the main causes of present difficulties in plant design and control. The complexity of a manufacturing system cannot be viewed without considering the products produced in the system. Lack of understanding in this relationship may lead to difficulties in product portfolio design and manufacturing system design. In this thesis, it is shown that by designing a manufacturing system properly, we can manage increased product variety while simultaneously eliminating system complexity. In addition, this thesis explains how `lean' concepts eliminate system complexity.

To see and compare complexity of manufacturing systems, complexity metrics are developed based on a complexity model provided by system theory. These metrics focus on sources of complexity to facilitate system improvements in terms of system complexity. With these metrics, a case study was carried out to apply these complexity metrics to a real industry case. In this case study, a lean manufacturing system that substitutes the existing mass-type manufacturing system is proposed and the impacts of this conversion on manufacturing system complexity are studied. According to this case study, the complexity of the proposed lean production system is much less than the complexity of the existing system in terms of proposed complexity metrics.

Once the complexity of a manufacturing system is well understood, the manufacturing system can be designed to decrease complexity. In addition, product families can be des...