You are required to read and agree to the below before accessing a full-text version of an article in the IDE article repository.

The full-text document you are about to access is subject to national and international copyright laws. In most cases (but not necessarily all) the consequence is that personal use is allowed given that the copyright owner is duly acknowledged and respected. All other use (typically) require an explicit permission (often in writing) by the copyright owner.

For the reports in this repository we specifically note that

  • the use of articles under IEEE copyright is governed by the IEEE copyright policy (available at
  • the use of articles under ACM copyright is governed by the ACM copyright policy (available at
  • technical reports and other articles issued by M‰lardalen University is free for personal use. For other use, the explicit consent of the authors is required
  • in other cases, please contact the copyright owner for detailed information

By accepting I agree to acknowledge and respect the rights of the copyright owner of the document I am about to access.

If you are in doubt, feel free to contact

Engineering Automotive Electronic Systems: Decision Support for Successful Integration



Joakim Fröberg

Publication Type:

Doctoral Thesis


Development of a modern vehicle involves integration of components from several organizations. Many components are mechatronic which means that they include mechanical parts together with electronics that actively enhance some property of the component. The electronic system is increasingly important to product behaviour as vehicle functions control and coordinates more of these mechatronic subsystems. As the operational functionality increase, the amount of built-in functions for lifecycle support such as production tests and diagnostics also increase. Integrated electronic components assists in all these goals of the system. Achieving a successful integration where the components fit is accomplished in the development phases preceding the integration. Problems in integration often lead to severe delays close to the start of vehicle production. This thesis presents 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 subsystems. 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, the Architecture Tradeoff Analysis Method, ATAM and the Analytic Hierarchy Process, 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 fulfilment 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.


author = {Joakim Fr{\"o}berg},
title = {Engineering Automotive Electronic Systems: Decision Support for Successful Integration},
month = {October},
year = {2007},
school = {M{\\"{a}}lardalen University},
url = {}