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Making Decisions in Integration of Automotive Software and Electronics: A Method Based on ATAM and AHP
Mälardalen University, Department of Computer Science and Electronics. (BESS)ORCID iD: 0000-0002-2726-4503
Volvo Car Corporation, Eskilstuna, Sweden. (BESS)ORCID iD: 0000-0001-8891-033X
Volvo Car Corporation, Gothenburg, Sweden. (BESS)ORCID iD: 0000-0002-3986-1196
2007 (English)In: Proceedings - ICSE 2007 Workshops: Fourth International Workshop on Software Engineering for Automotive Systems, SEAS'07, 2007, p. Article number 4228592--Conference paper, Published paper (Other academic)
Abstract [en]

In this paper we present a new method for makingdecisions on integration strategy for in-vehicle automotive systems.We describe the problem of choosing integration strategy and wedescribe the method, which is a combination of the ArchitectureTradeoff Analysis Method, ATAM, and the Analytical HierarchyProcess, AHP. We exemplify the use of the proposed method byevaluating the integration decisions concerning the physicalconnection of a realistic example system; a computer controlledautomatic gearbox. We present analysis on the use of the method andconclude that the method has several benefits compared to ATAM orAHP used individually. The method firstly supports a structured wayof listing system goals, and secondly, it also supports the makingof design decisions.

Place, publisher, year, edition, pages
2007. p. Article number 4228592--
National Category
Engineering and Technology Computer Systems
Identifiers
URN: urn:nbn:se:mdh:diva-4142DOI: 10.1109/SEAS.2007.7Scopus ID: 2-s2.0-36248952589ISBN: 9780769529684 (print)OAI: oai:DiVA.org:mdh-4142DiVA, id: diva2:120980
Conference
ICSE 2007 Workshops: 4th International Workshop on Software Engineering for Automotive Systems, SEAS'07; Minneapolis, MN; United States; 20 May 2007 through 26 May 2007
Available from: 2007-11-14 Created: 2007-11-14 Last updated: 2016-09-27Bibliographically approved
In thesis
1. Key Challenges in Decision Making for Automotive E/E Architectures
Open this publication in new window or tab >>Key Challenges in Decision Making for Automotive E/E Architectures
2008 (English)Licentiate thesis, comprehensive summary (Other scientific)
Abstract [en]

The amount of electronics in vehicles is growing quickly, thus systems are becoming increasingly complex making the engineering of these software intensive systems more and more difficult. In particular, an architecture supporting the business goals is a prerequisite for successful design.

In this thesis two case studies have been made including three automotive companies with purpose to investigate the key issues related to real-world decisions when developing Electrical and Electronic (E/E) system architectures in the automotive industry.

The results show that many of the identified issues relate to non technical areas such as organization, process, methods and tools, and management. Examples of identified issues are the deficient understanding of the electrical system and software at management level, and the lack of a specific process for architecture development. To cope with these issues we suggest the following actions: Educate management, increase the use of structured decision making, improve the architecture development process, clarify responsibilities in the organization and clarify development strategies.

As a possible solution to one of the suggested actions we have developed a method to evaluate how new functionality is successfully integrated into an existing architecture. Themethod is a combination of the Architecture Tradeoff Analysis Method, ATAM, and the Analytical Hierarchy Process, AHP. The method firstly supports a structured way of listing system goals, and secondly, it also supports the making of design decisions.

Place, publisher, year, edition, pages
Västerås: Mälardalen University, 2008. p. 122
Series
Mälardalen University Press Licentiate Theses, ISSN 1651-9256 ; 93
Keyword
automotive E/E architectures, challenges, decision making
National Category
Engineering and Technology
Research subject
Computer Science
Identifiers
urn:nbn:se:mdh:diva-4385 (URN)978-91-85485-97-0 (ISBN)
Presentation
2008-10-02, Kappa, Högskoleplan 1, Västerås, 12:30 (English)
Opponent
Supervisors
Projects
Business Oriented Concept Development of Electronic System Architecture and Platforms in Vehicles
Available from: 2008-12-02 Created: 2008-11-27 Last updated: 2016-09-27Bibliographically approved
2. Identifying and Managing Key Challenges in Architecting Software-Intensive Systems
Open this publication in new window or tab >>Identifying and Managing Key Challenges in Architecting Software-Intensive Systems
2011 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

In many traditional industry applications, such as automotive, process automation and manufacturing automation, software plays a crucial role as an enabler for the introduction of new functionality and retaining competitiveness. The system and software architecture plays an important part in ensuring the systems’ qualities. However, the design of the architecture may be neglected during system development, whilst development efforts are centered on implementing new functionality. The architecture is supposed to support and enable key quality attributes such as safety, reliability, maintainability and flexibility, and so on. This thesis identifies some of the key issues in architecting these software intensive systems. In total, 21 issues have been identified; examples of these issues are (1) there is a lack of process for architecture development, (2) there is a lack of method or model to evaluate business value when choosing architecture, (3) there is a lack of clear long-term architectural strategy, and (4) processes and methods are less valued than individuals’ knowledge and competence. Through a series of workshops, root causes were identified for a selection of these issues. Based on these root causes, five success factors were identified. The success factors are (1) define an architectural strategy (2) implement a process for architectural work (3) ensure authority for architects (4) clarify the business impact of the architecture and (5) optimize on the project portfolio level instead of optimizing each project. In an attempt to provide a possible solution to some of the issues, a method has been created to evaluate how new functionality is successfully integrated into an existing architecture. The method is a combination of the Architecture Tradeoff Analysis Method, ATAM, and the Analytical Hierarchy Process, AHP. The method firstly supports a structured way of listing system goals, and secondly, it also supports design decision-making. Since several issues relate to the organization and are affected by management, a comparison was made between the view of management and architects. This study revealed that one cause for the lack of focus on architecture could be that the existing performance measurement systems used by management all focus on the later phases of development when the architecture is already set.

 

Place, publisher, year, edition, pages
Västerås: Mälardalen University, 2011
Series
Mälardalen University Press Dissertations, ISSN 1651-4238 ; 96
National Category
Information Systems Software Engineering
Research subject
Computer Science
Identifiers
urn:nbn:se:mdh:diva-11816 (URN)978-91-7485-004-8 (ISBN)
Public defence
2011-03-18, Beta, Mälardalens högskola, Västerås, 09:00 (English)
Opponent
Supervisors
Projects
CoSy
Available from: 2011-02-14 Created: 2011-02-12 Last updated: 2018-01-12Bibliographically approved
3. Engineering Automotive Electronic Systems: Decision Support for Successful Integration
Open this publication in new window or tab >>Engineering Automotive Electronic Systems: Decision Support for Successful Integration
2007 (English)Doctoral thesis, comprehensive summary (Other scientific)
Abstract [en]

The electronic system of a modern vehicle is essential to achieve a successful automotive product. Vehicle development is performed by integrating components that include embedded electronics from several suppliers.

This thesis present results on the subject of integration of automotive electronic systems. Our studies aim at providing knowledge on how to integrate automotive electronic systems successfully in a setting where vehicles are developed based on existing platforms. We focus on early phases of automotive electronic system development and in particular on the decisions taken in integration of electronic sub-systems. The contribution is the presented support for making decisions to successfully integrate electronic systems for modern vehicles. The contribution includes an overview of driving factors of automotive electronics system design, a validated set of success practices for the integration of electronic components, and the proposal and demonstration of a decision model. The influential factors and the validated set of practices stems from case studies of products and projects while the proposed decision model is a result of combining two general models for architecture analysis and decision making, ATAM and AHP.

We demonstrate that choices in strategy and design preceding integration are central to achieve a successful integration. Our studies show that problems arise from omitted strategy decisions and we provide a checklist for decision making in the areas; functionality, platform, integration design, and assigning responsibilities. We provide a recommendation that we validate in a multiple cases study where fulfillment of recommendations is demonstrated to affect project success in integration projects.

The potential gain for OEMs using our results lies in achieving more solid foundations for design decisions. Designers and managers could potentially find central decisions on integration strategy early that, if omitted, could cause delays. Thus, applying the result could avoid pitfalls and enable successful integration projects.

Place, publisher, year, edition, pages
Institutionen för datavetenskap och elektronik, 2007. p. 123
Series
Mälardalen University Press Dissertations, ISSN 1651-4238 ; 52
Keyword
Integration, Automotive, Decision support, Electronic system, Systems engineering
National Category
Computer Sciences
Research subject
Computer Science
Identifiers
urn:nbn:se:mdh:diva-459 (URN)978-91-85485-65-9 (ISBN)
Public defence
2007-12-19, Beta, U, Mälardalens högskola, Västerås, Västerås, 13:00
Opponent
Supervisors
Available from: 2007-11-14 Created: 2007-11-14 Last updated: 2018-01-13

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Fröberg, JoakimAxelsson, Jakob

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