miun.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Strategic Proactive Obsolescence Management Model
Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design. (STC)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design. (STC)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information and Communication systems. (STC)
2014 (English)In: IEEE Transactions on Components, Packaging, and Manufacturing Technology, ISSN 2156-3950, E-ISSN 2156-3985, Vol. 4, no 6, p. 1099-1108Article in journal (Refereed) Published
Abstract [en]

When there is a demand larger than the corresponding number of components in stock, obsolescence problems may occur for those systems with a life cycle longer than that of one or more of their components, such as automotive, avionics, military application, etc. This paper discusses the electronic component obsolescence problem and presents a formal mathematical strategic proactive obsolescence management model for long life cycle systems.

The model presented in this paper utilizes redesign and last-time-buy (LTB) as two management methods. LTB cost is estimated by unit cost, demand quantities, buffer, discount rate and holding cost. Redesign cost is associated with component type and quantities.

This model can estimate the minimum management costs for a system with different architectures. It consists of two parts. The first is to generate a graph, which is in the form of an obsolescence management diagram. A segments table containing the data of this diagram is calculated and prepared for optimization at a second step. This second part is to find the minimum cost for system obsolescence management. Mixed integer linear programming (MILP) is used to calculate the minimum management cost and schedule. The model is open sourced allowing other research groups to freely download and modify it.

A display and control system case study is shown to apply this model practically. A reactive manner is presented as a comparison. The result of the strategic proactive management model shows significant cost avoidance as compared to the reactive manner.

Place, publisher, year, edition, pages
IEEE Components, Packaging, and Manufacturing Technology Society , 2014. Vol. 4, no 6, p. 1099-1108
Keywords [en]
Strategic; DMSMS; Obsolescence; Graph; MILP
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-21016DOI: 10.1109/TCPMT.2014.2316212ISI: 000337136200017Scopus ID: 2-s2.0-84902144517Local ID: STCOAI: oai:DiVA.org:miun-21016DiVA, id: diva2:686609
Available from: 2014-01-12 Created: 2014-01-12 Last updated: 2017-12-06
In thesis
1. Technology Driven Obsolescence Management for Embedded Systems
Open this publication in new window or tab >>Technology Driven Obsolescence Management for Embedded Systems
2014 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

In this thesis, the work presented is in relation to technology driven obsolescence management for embedded systems.

Component obsolescence problems may occur in systems with a life cycle longer than that of one or more of their components when there is a demand without enough existing stock, such as automotive, avionics, military applications, etc. This thesis analyzes the component obsolescence problem from both the design technology selection and management perspectives.

Design technologies selection is associated with hardware and software. Several hardware platforms such as COTS and field-programmable gate array (FPGA) are discussed. FPGA intellectual property (IP) portability is emphasized which will affect the obsolescence management cost. Embedded software is also a crucial part for system sustainment. A risk analysis is performed in relation to long life cycle systems for different design technologies. Different platform cases are evaluated by analyzing the essence of each case and the consequences of different risk scenarios during system maintenance. This has shown that an FPGA platform with the vendor and device independent soft IPs has the highest maintainability and the minimum redesign cost.

The reuse of a predefined IP can shorten the development times and assist the designer to meet time-to-market (TTM) requirements. System migration between devices is unavoidable, especially when it has a long life cycle expectation, so IP portability becomes an important issue for system maintenance. If an IP for FPGAs is truly portable, it must be easily adaptable to different communication interfaces, being portable between different FPGA vendors and devices, having no dependencies on the tool set and library used for the system design and no restriction on the communication interface. An M-JPEG decoder and a soft microprocessor portability analysis case study are presented in the thesis. A methodology is proposed to ease the interface modification and interface reuse, thus to increase the portability of an IP.

A strategic proactive obsolescence management model is proposed from a management perspective. This model can estimate the minimum management costs for a system with different architectures. It consists of two parts. The first is to generate a graph, which is in the form of an obsolescence management diagram. A segments table containing the data of this diagram is calculated and prepared for optimization at a second step. This second part is to find the minimum cost for system obsolescence management. Mixed integer linear programming (MILP) is used to calculate the minimum management cost and schedule. The model is open sourced thus allowing other research groups to freely download and modify it.

Both the design technology selection and the strategic proactive obsolescence management are demonstrated by an industrial display computer system case study. The results show significant cost avoidance as compared to the original method used by the company.

Finally, the research results are encapsulated into an obsolescence management cost avoidance methodology.  

Place, publisher, year, edition, pages
Sundsvall: Mid Sweden University, 2014. p. 178
Series
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 186
Keywords
Long life cycle, embedded system, DMSMS, obsolescnece, FPGA, IP, portability
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-21744 (URN)STC (Local ID)978-91-87557-50-7 (ISBN)STC (Archive number)STC (OAI)
Public defence
2014-05-15, O102, Sundsvall, 11:17 (English)
Opponent
Supervisors
Funder
Knowledge Foundation
Available from: 2014-04-17 Created: 2014-04-11 Last updated: 2017-03-06Bibliographically approved

Open Access in DiVA

source_code(3 kB)73 downloads
File information
File name ATTACHMENT01.zipFile size 3 kBChecksum SHA-512
db9e3a206ab3c88ecf8709a6351f85ef3ffa5dbfd56275615c8bf322daaa5e01e5a246c7535b6ed8eb0fb457edc0f20e9f68d0fc304bd42f2b93e4ef47cdfb94
Type attachmentMimetype application/zip

Other links

Publisher's full textScopus

Authority records BETA

Meng, XiaozhouThörnberg, BennyOlsson, Leif

Search in DiVA

By author/editor
Meng, XiaozhouThörnberg, BennyOlsson, Leif
By organisation
Department of Electronics DesignDepartment of Information and Communication systems
In the same journal
IEEE Transactions on Components, Packaging, and Manufacturing Technology
Other Electrical Engineering, Electronic Engineering, Information Engineering

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 1166 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf