Handling Clone Mutations in Simulink Models with VCL

Like any other software system, real life Simulink models contain a considerable amount of cloning. These clones are not always identical copies of each other, but actually show a variety of differences from each other despite the overall similarities. Insufficient variability mechanisms provided by the platform make it difficult to create generic structures to represent these clones. Also, complete elimination of clones from the systems may not always be practical, feasible, or cost-effective. In this paper we propose a mechanism for clone management based on Variant Configuration Language (VCL) that provides a powerful variability handling mechanism. In this mechanism, the clones will be managed separate from the models in a non-intrusive way and the original models will not be polluted with extra complexity to manage clone instances. The proposed technique is validated by creating generic solutions for Simulink clones with a variety of differences present between them

Analysis of ISO 26262 Compliant Techniques for the Automotive Domain

The ISO 26262 standard denes functional safety for automotive E/E systems. Since the publication of the rst edition of this standard in 2011, many dierent safety techniques complying to the ISO 26262 have been developed. However, it is not clear which parts and (sub-) phases of the standard are targeted by these techniques and which objectives of the standard are particularly addressed. Therefore, we carried out a gap analysis to identify gaps between the safety standard objectives of the part 3 till 7 and the existing techniques. In this paper the results of the gap analysis are presented such as we identied that there is a lack of mature tool support for the ASIL sub-phase and a need for a common platform for the entire product development cycle

Analysis of ISO 26262 Compliant Techniques for the Automotive Domain

The ISO 26262 standard denes functional safety for automotive E/E systems. Since the publication of the rst edition of this standard in 2011, many dierent safety techniques complying to the ISO 26262 have been developed. However, it is not clear which parts and (sub-) phases of the standard are targeted by these techniques and which objectives of the standard are particularly addressed. Therefore, we carried out a gap analysis to identify gaps between the safety standard objectives of the part 3 till 7 and the existing techniques. In this paper the results of the gap analysis are presented such as we identied that there is a lack of mature tool support for the ASIL sub-phase and a need for a common platform for the entire product development cycle

Tailoring complexity metrics for simulink models

The size and complexity of Simulink models is constantly increasing, just as the systems which they represent. Therefore, it is beneficial to control them already at the design phase. In this paper we establish a set of complexity metrics for Simulink models to capture diverse aspects of complexity by proposing new and redefining existing metrics. To evaluate the applicability of our metrics, we compare them with the closed-source metric proposed by Mathworks. Moreover, through a case study from the automotive domain, we relate such metrics to quality attributes as determined by domain experts, and correlate them to known faults. Preliminary assessment suggests that complexity is closely related to analysability, understandability, and testability

Automotive architecture description and its quality

This research is part of the Hybrid Innovations for Trucks (HIT), an ongoing multi-disciplinary project with the objectives of CO$_2$ emission reduction and fuel saving for long haul vehicles. Achieving this goal necessitates definition of a proper architecture and quality techniques to enable the development of a new and more efficient control software. Therefore, this research covers automotive architecture description language and quality of automotive software. Keywords: automotive architecture, architecture description language, architectural quality, quality metric