Developing safe cars safely

A car is no longer just an engine, transmission and body - it now has more than 20 million programming lines in a modern vehicle. From parking assistants and electric windows to tire pressure monitoring - who doesn't know and use these conveniences? But who thinks about the fact that all these functions are also dangerous?

Parallel to this constantly growing complexity in vehicles, there is also a growing risk of malfunctions, which in the worst case could lead to damage to people.

The development of a car is therefore subject from the outset to safety-critical factors that must be systematically analyzed and evaluated in order to be able to bring a technically flawless vehicle onto the market against the background of the german Product Liability Act

The international series of standards IEC 61508 on "Functional Safety" (short: FuSI) "for the development of electrical, electronic and programmable electronic [...] systems that perform a safety function" defines, according to Wikipedia, "procedures that make it possible to manufacture products that do not pose disproportionate or unacceptable risks for users and the environment according to the current state of the art". 

ISO 26262 is part of the standards series and refers to electronic/electrical systems in motor vehicles in particular. This standard thus defines a procedure model for the required activities and work products and requires a methodical approach for development and production.

Potential risks must be classified according to the so-called ASIL (Automotive Safety Integrity Level) from A to D or "not relevant to safety" and components (of the supplier) that could be responsible for them identified. All suppliers must be informed accordingly in order to include them in the safe development process. 

As an automobile manufacturer - in cooperation with all suppliers, sub-suppliers and testing institutes - ensuring a consistently traceable and standard-compliant development is a major challenge

With this in mind, we would like to show how the Requirements Management solution agosense.fidelia can support this safety-critical management task. 

In cooperation with PROMETO GmbH, a consulting specialist for safety and security in the automotive sector, a practical solution for the implementation of the ISO 26262 standard based on agosense.fidelia has been developed.   

  • The included Solution Template serves as a starting aid to be able to create a project ISO-compliant and already contains all required object types. From input to requirementsarchitecture to hazard and test cases, the template provides a well-thought-out structure that allows work to begin immediately. This structure can be individually extended and adapted at any time. 
  • In order to ensure consistent traceability, the solution also includes a finished data model (based on the "V-Modell") for linking the data. Dependencies are clearly displayed and can be traced at any time.
  • Effects of changes - e.g. on test cases - are immediately shown by means of the impact analysis and the user immediately recognizes at which further points in the project adjustments may be necessary.
  • Thanks to the change-based concept, changes are always initially made in a draft version- the original, last released base version is always retained. Changes are only transferred to the base version after they have been released. This history is always traceable and - for example for the TÜV - can be retrieved at any time. 

In addition to all this, agosense.fidelia is distinguished by its intuitive usability. The Requirements Management solution can be integrated into your existing tool landscape and thus offers a comprehensive solution to safely develop safe cars.

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