Embedded devices involved in safety-critical applications must be robust and reliable. Functional safety aspects of a device include response to inputs, possible hardware and software failures, environmental changes, operator errors, uptake of corrupt information, changes in electromagnetic environment, changes in characteristics, random failures of components throughout the product life cycle, and intentional tampering.
At DEKRA, we perform a risk assessment to define the required functional safety and safety integrity levels (SIL) for your devices. We then devise an assessment plan covering the entire product life cycle. This may include reviews of the hardware and software requirements, design process, verification testing, documentation and complete technical construction file.
The internationally accepted basic standard for addressing functional safety is IEC 61508. There are also other standards for specific products, such as IEC 62304 for medical devices, and for particular sectors, such as IEC 61511 for the process industry and ISO 26262 for road vehicles. We assess conduct functional safety in line with many recognized standards, including (but not limited to):