RiskTastatur

Safety management

To make a product functionally safe, systematic failures have to be avoided, and systematic and random hardware failures have to be controlled.

Functional safety in general

 

Functional safety is about avoiding systematic failures during product development as well as controlling systematic and random hardware failures in operation. By now this philosophy has spread and manifests itself in the branch-independent standard IEC 61508 just as in the automotive-specific ISO 26262, the agriculture-specific ISO 25119 and the safety of machinery according to the ISO 13849. 

 

RisikographTo define appropriate risk reduction measures for development and operation, the functional risks of the product are identified and evaluated. Although the sector-specific functional safety standards differ in their approaches to identifying and evaluating risks, the target of risk determination is identical across all sectors.

 

Irrespective of criticality standardised development, supporting and production processes have to be defined to avoid systematic failures during system design, development and production.

 
In contrast, for the control of systematic and random hardware failures in operation technical solutions are developed like diagnosis, monitoring functions and safety mechanisms.


Depending on the criticality, redundancies are defined in hardware and software. This approach is meant to achieve or maintain a safe state of the product.

 

Quality management

 

To ensure the implementation of functional safety activities in complex systems, not only a basic quality management, but an integrative safety and quality management system is needed.

 

 

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