EBASO - Veröffentlichungen

Control Variant-rich Models by Variability Measures

Januar 2011 - Stefan Mann, Georg Rock

In: Proc. 5^th Int. Workshop on Variability Modeling of Softwareintensive Systems (VAMOS 2011)

The embedded systems market and especially the software part of it is growing drastically in automotive industry. Today we see that the value of software or functionality that is realized using software within cars is about 35% of the value of the car itself. We have typically more than 70 embedded control units (ECUs) in a car with functionality realized and controlled by software. The standardization of communication interfaces and operating system functionality as for example realized by AUTOSAR facilitates the distributed development of software. But the needs to produce software in time and in budget remain still a main task in automotive software industry. To cope with tight project plans, process models based on product line technology promise a good chance to be successful. Nevertheless, the need to control the product development remains still one of the most important questions in this area.

A Custom Approach for Variability Management in Automotive Applications

Januar 2010 - Fabian Kliemannel, Georg Rock, Stefan Mann

In: David Benavides, Don Batory, Paul Grünbacher(Hrsg.): Proc. 4^th  Int. Workshop on Variability Modeling of Software-intensive Systems (VAMOS 2010), ICB-Research Report No. 37, Januar 2010, ISSN 1860‐2770 (Print), ISSN 1866‐5101 (Online)

Product lines are receiving more and more attention in software and mechanical engineering processes in the automotive industry. The benefits of using a product line approach are clearly defined in literature and widely accepted. Nevertheless, until now there are only few applications that exploit the variability knowledge during a complete development process. In this paper we argue that all the necessary prerequisites for the handling of variability are present. What is missing is on the one hand an integration of these techniques within the typical area specific development tools (as for example MATLAB/ Simulink) and on the other hand the seamless transition of variant information between different engineering tools and development levels.

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EBASO 201001 Custom Approach (pdf, 465 KB)

Dealing with Variability in Architecture Descriptions to Support Automotive Product Lines: Specification and Analysis Methods

März 2009 - Stefan Mann, Georg Rock 

In: Proc. embedded world Conference 2009, WEKA Fachmedien, März 2009, ISBN 978-3-7723-3798-7

Architectural description languages (ADLs) are essential means for a system and software design in the large. Their common concepts are components, ports, interfaces and connectors. Some of them already support the representation and management of variance, a prerequisite to support product line engineering, but the support of variability often stops on component level. In this paper, a more detailed view on the integration of variability into architectural models concerning the formal analysis of variability and the related assessment of the defined product lines is taken. The focus is set on the support of product line engineering within the automotive E/E domain, where functionality or its realization is varying according to specific customer needs and hardware topologies. In general, the fundamental question in this domain is not, if a product line approach is applied, but what is the best way to integrate it.

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EBASO 200903 Specification and Analysis (pdf, 611 KB)

Dealing with Variability in Architecture Descriptions to Support Automotive Product Lines

Januar 2009 - Stefan Mann, Georg Rock

In: David Benavides, Andreas Metzger, Ulrich Eisenecker (Hrsg.): Proc. 3rd Int. Workshop on Variability Modeling of Software-intensive Systems (VAMOS 2009), ICB-Research Report No. 29, Januar 2009, ISSN 1860-2770 (Print), ISSN 1866-5101 (Online)

Architectural description languages (ADLs) are essential means for a system and software design in the large. Their common concepts are components, ports, interfaces and connectors. Some of them already support the representation and management of variance, a prerequisite to support product line engineering, but the support of variability often stops on component level. In this paper, a more detailed view on the integration of variability into architectural models concerning the formal analysis of variability and the related assessment of the defined product lines is taken. The focus is set on the support of product line engineering within the automotive E/E domain, where functionality or its realization is varying according to specific customer needs and hardware topologies. In general, the fundamental question in this domain is not, if a product line approach is applied, but what is the best way to integrate it.

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EBASO 200901 Architecture Descriptions (pdf, 1,1 MB)