ISO 26262 ASIL Decomposition: Part 9 of ISO26262 defines a scheme for dividing a requirement with a specific ASIL level into two requirements with lower ASIL levels.
In the following blog post I will address the question when the ASIL decomposition can be applied in practice and what are the advantages. At the same time, however, some practice is critically questioned in the projects regarding the ASIL decomposition. Read more
The compiler is the central “tool”, which is required for every software development. It forms the link between the human-readable high-level source code (e.g., C and C ++) and the machine code, interpretable for the hardware processor. For the development of safety critical software according to relevant functional safety standards special requirements apply for the tools used during the development. (Refer to tool qualification blog 1 and blog 2) Such functional safety standards are ISO26262 (car), EN50128 (rail), IEC61508 (automation, general) or DO178C (aerospace). The compiler plays a special role here. On the one hand, it is the central tool for any development. On the other hand, the measures proposed in the standards can not be fully applied in practice. The blog shows a process from the aerospace industry how to use compiler for safety critical systems. This process can highly be recommended for other industries. Read more
In the blog post ISO26262: Freedom from interference – What is that?, I explained the principle of Freedom from Interference. The example used was based on the automotive industry and the ISO 26262.
Now I would like to consider Freedom from Interference with respect to the industry sectors railway, aviation and automotive and share my industry experiences with you. Read more
ISO 26262 Freedom from interference :
There are four essential measures in the development of safety-critical systems.
Particularly in the design of safe systems, the principle of Freedom from interference is a powerful measure. What’s this? The following blog provides an answer to this question. Read more
Reuse Secenarios in ISO 26262 part 1 demonstrated the diversity of reuse scenarios. Now I want to concentrate on concrete measures, which are used to make the reuse of software successfully. Read more
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