ISO26262

ISO 26262 Confidence in the use of software tools – A feasible strategy!

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ISO 26262 Confidence in the use of softwar tools: ISO 26262-8 in chapter 11 defines the requirements for software tools that are used in an ISO 26262 compliant software development process. In the practical usage of chapter 11 of ISO 26262-8 many questions often arise, which partly lead to very creative approaches regarding tool qualification. […]

ISO26262

ISO 21448 – Safety of the Intended Functionality (SOTIF) Why is it required?

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The ISO 21448 Safety of the Intended Functionality defines methods for failure resulting from the limitation of a functionality. ISO 26262 deals with concepts, procedures and measures for failures resulting from random hardware failures or systematic HW/SW failures. Many experts see the SOTIF standard as a normative support for the realization of autonomous driving. This […]

ISO26262

ISO 26262 Safety Case – Success factors: management and traceability!

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The term Safety Case is used in the automotive industry and railway industry (EN50129). The following article focuses on the automotive industry. Project experience shows that the achievement of a proven functionally safe system is complex and extensive. This is particularly true if the development of a product is spread over several companies. I will […]

ISO26262

ISO 26262 Freedom from interference – What is that?

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ISO 26262 Freedom from interference : There are four essential measures in the development of safety-critical systems. Design of safe systems Measures to minimize random hardware errors Measures to minimize systematic hardware and software errors Organizational measures (management of functional safety) Particularly in the design of safe systems, the principle of Freedom from interference is […]

ISO26262

ISO 26262 calibrateable Systems – Chance or Risk?

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ISO 26262 calibrateable Systems are discussed in part 6 Annex C. This blog summarizes important requirements of the standard and shows practice-oriented challenges of software-configurable embedded systems. The use of calibration data in configurable systems offers a lot of advantages. The functional behavior of the entire system can be adjusted by simple and rapid changes […]

ISO26262

Fault Injection Test in ISO 26262 – Do you really need it?

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Fault Injection Test: The ISO 26262 defines the fault injection test as a test method for the system integration and unit test level (ISO 26262-4 [System] Tables 5, 8, 10, 13, 15, 18; ISO 26262-5 [Hardware] Table 11; ISO 26262-6 [software] tables 10, 13). This method has certainly a large part in the implementation of […]

ISO26262

Reuse scenarios in ISO 26262 (part 1)

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Why is the reuse of software, hardware, or complete electronic control units a central theme? Two essential aspects are to be considered: the development costs can be reduced significantly, i.e. reuse of components is very attractive in economic terms. But also for security reasons, the reuse of components can offer significant benefits. A control unit, […]