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ECONOMICAL VALUATION OF ARCHITECTURAL DECISIONS WITHIN AUTOMOTIVE ELECTRONICS
Mälardalen University, School of Innovation, Design and Engineering. (Business oriented Engineering of Software intensive Systems )
2008 (English)Licentiate thesis, comprehensive summary (Other scientific)
Abstract [en]

Today most innovations made within the automotive domain are driven by electronics. The automotive customers demand new functionality with every new product release and the time-to-market is constantly shortened. Automotive embedded systems are often resource constrained and trade-offs between the system behavior and the resources required is of great importance. The cost sensitive automotive industry has to optimize the use of the system's limited resources, but in the meantime also be flexible. The system needs to support a large number of vehicle configurations over many years of production. The design decisions are usually based on many factors that pull in different directions such as maintenance, portability, usability etc. The growing complexity of the product and the many uncertain factors create a need for support in the design process. To better understand this problem decision methods used within an R&D department of an international vehicle manufacturer has been investigated through interviews and surveys. The survey reveals that a majority of the respondents use unstructured methods for resolving decision issues. When respondents were asked about their preferences there was an expressed need for more structured methods. In this research several existing methods have been surveyed and the methods most relevant to this issue are further described in this thesis. The main contribution of this thesis is an evaluation method using Real Options. The method provides the opportunity to analyze the cost of designing for flexibility to cope with a future growth of the product, based on the estimated value of the future functionality. To improve the usability an evaluation process is defined to aid engineers. This process provides a way of valuing system designs and enables the engineer to think about the future in a systematic manor. To analyze the resource usage within an embedded system a method is proposed on how to evaluate the resource efficiency of functions implemented within an automotive embedded system. The challenge of this work has been to develop methods that are found helpful to the industry and are easy enough to use so that designers are willing to try them again

Place, publisher, year, edition, pages
Västerås: Mälardalen University Press , 2008. , 110 p.
Series
Mälardalen University Press Licentiate Theses, ISSN 1651-9256 ; 92
Keyword
cost-efficient
Identifiers
URN: urn:nbn:se:mdh:diva-1057ISBN: 978-91-85485-98-7 (print)OAI: oai:DiVA.org:mdh-1057DiVA: diva2:24319
Presentation
2008-10-02, Mälardalens University, Kappa, Högskoleplan 1, Västerås, 15:00
Opponent
Supervisors
Available from: 2008-09-22 Created: 2008-09-22 Last updated: 2008-09-24Bibliographically approved
List of papers
1. An Industrial Case Study of Design Methodology and Decision Making for Automotive Electronics
Open this publication in new window or tab >>An Industrial Case Study of Design Methodology and Decision Making for Automotive Electronics
2008 (English)In: Proceedings of the ASME 2008 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, New York: ASME , 2008, 77-86 p.Conference paper, Published paper (Refereed)
Abstract [en]

The growth rate of R&D activities in automotive industry brings an increased need for transfer of design knowledge. This, in combination with growing complexity of the product puts new demands on the decision process. In this paper, decision methods used within the R&D department of an international vehicle manufacturer has been investigated through interviews and surveys. The main focus has been to identify and analyze methods used by the individual roles within different development teams. The survey reveals that a majority of the respondents use unstructured methods for resolving decision issues. When respondents were asked about their preferences there was an expressed need for more structured methods.

Place, publisher, year, edition, pages
New York: ASME, 2008
National Category
Engineering and Technology
Identifiers
urn:nbn:se:mdh:diva-1052 (URN)10.1115/DETC2008-49901 (DOI)000268879900009 ()2-s2.0-69949144268 (Scopus ID)0-7918-3831-5 (ISBN)
Conference
ASME International Design Engineering Technical Conferences/Computers and Information in Engineering Conference Location: New York, NY Date: AUG 03-06, 2008
Available from: 2008-09-22 Created: 2008-09-22 Last updated: 2016-06-03Bibliographically approved
2. Evaluating Flexibility in Embedded Automotive Product Lines Using Real Options
Open this publication in new window or tab >>Evaluating Flexibility in Embedded Automotive Product Lines Using Real Options
2008 (English)In: Proceedings - 12th International Software Product Line Conference, SPLC 2008, 2008, 235-242 p.Conference paper, Published paper (Refereed)
Abstract [en]

Embedded automotive architectures and software need to support a large number of vehicle product lines over many years of production. This leads to a complexity and many uncertain factors when developing such systems and a need for support in the design process. An evaluation method using Real Options provides the opportunity to analyze the cost of designing for flexibility to cope with a future growth of a product line, based on the estimated value of the future functionality. In this paper Real Options is applied on a case within the automotive industry. To improve the usability an evaluation process is defined to aid engineers. This process provides a way of valuing system designs and enables the engineer to think about the future in a systematic manor. The value of a flexible design can thereby be quantified and the proposed process shows how it can be accepted by practitioners.

National Category
Engineering and Technology
Identifiers
urn:nbn:se:mdh:diva-1054 (URN)10.1109/SPLC.2008.9 (DOI)2-s2.0-55049107248 (Scopus ID)978-0-7695-3303-2 (ISBN)
Conference
12th International Software Product Line Conference, SPLC 2008; Limerick; 8 September 2008 through 12 September 2008
Available from: 2008-09-22 Created: 2008-09-22 Last updated: 2016-06-03Bibliographically approved
3. A Framework For The Evaluation Of Resource Efficiency In Automotive Embedded Systems
Open this publication in new window or tab >>A Framework For The Evaluation Of Resource Efficiency In Automotive Embedded Systems
2008 (English)In: Proceedings of the ASME 2008 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, 2008, 87-96 p.Conference paper, Published paper (Refereed)
Abstract [en]

This article discusses the resource utilization of embedded systems in the automotive industry. Traditionally, the major cost driver - or resource input - has been regarded as the hardware cost. Issues such as software development costs and maintenance costs have historically been neglected. In order to address this, the article embraces the more comprehensive view on resources that a resource can be regarded as anything which could be thought of as a strength or weakness of a given firm. In this article the major drivers of resource consumption are identified. The work has also included several interviews with employees in order to find empirical data of the embedded systems in vehicles. This paper proposes a method to evaluate the resource efficiency of user functions implemented through the embeddedsystem. By the use of Data Envelopment Analysis - which has proven to be a useful method - the resource utilization of six user functions is evaluated. Future work of particular interest would be to perform a more extensive case study.

National Category
Engineering and Technology
Identifiers
urn:nbn:se:mdh:diva-1055 (URN)10.1115/DETC2008-49905 (DOI)2-2-s2.0-81155126132 (Scopus ID)0791838315 (ISBN)
Conference
2008 ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, DETC 2008; New York City, NY; United States; 3 August 2008 through 6 August 2008
Available from: 2008-09-22 Created: 2008-09-22 Last updated: 2016-06-03Bibliographically approved

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