Many books have been written in the last 30 years on the subject of requirement engineering. The method has been designed and improved. The great success of these efforts lies in the fact that the awareness of the topic has been raised in a broad professional audience. There is hardly anyone today who would fundamentally deny that requirement engineering is useful for embedded systems and IT systems. On the other hand, it can also be stated that the practical implementation of requirement engineering in projects still has significant shortcomings. This is where the following article starts. On the basis of some selected topics of requirements engineering I show differences between the requirements in the method description and the needs in practice. Possible solutions are indicated but are not part of this article. Here, it is “only” a matter of sharpening the awareness of the problem. Read more
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 a powerful measure. What’s this? The following blog provides an answer to this question. Read more