Abstract
This paper presents opportunities for the intensive use of behavioral and structural models during safety-related systems engineering. The key outcome of the presented research activities is the detailed mapping of the SysML model diagrams and physical behavior models for specific steps of the safety engineering lifecycle. Innovative approaches for performing quantitative safety analyses based on the input of SysML models are also discussed. Finally, the positive effect of the new methodology on the efforts required for safety-related engineering processes is elaborated.
The presented study is based on an engineering methodology developed together with leading Flemish industrial partners for designing a safety-related E/E system according to international standards. This methodology can be applied not only to passenger cars but also in agricultural, (earth moving) machinery and off-highway domains. This so-called Flanders’ ASIL methodology (FLAME) describes the processes, work products, roles and responsibilities and presents links to the requirements of relevant functional safety standards. The methodology is supported by a web-based tool and can interact with other development tools. The synergies and gaps identified across the vehicle and machinery domains are also highlighted.
KEYWORDS – intelligent development methods, functional safety, ISO 26262, model-based systems engineering, SysML.