In the functional safety, there is a method which is always used – the FMEA (Failure Mode Effects Analysis).
In particular, on system and hardware level the FMEA supports systematic analysis. There are also variants such as the FMECA and the FMEDA. In this blog post I use only the term FMEA.
In project practice very often the question is raised, whether there is also a Software FMEA needed.
I will first explain the meaning and purpose of system and hardware FMEA in fulfilling the requirements of functional safety standards such as ISO 26262 or IEC 61508. Thereafter I will consider the possible needs to perform and Software FMEA. Read more