The 2 sides of ISO26262
As part of this blog post, we will cover the 2 facets of ISO 26262 and how these 2 facets go hand-in-hand in making a system safe. We consider these 2 facets to be like the sides of a coin. When a system is considered safe, it means that both these aspects are present in it. Let us deep dive a bit to understand what those are by using a very simple example. The first aspect of the ISO 26262 standard is the addressing of failure modes. As the ASIL increases, more and more failure modes need to be addressed as part of our system. The standard calls this the increasing diagnostic coverage. Let us take the example of the communication function and try to understand what we mean by this. Given below is the list of failure modes that are possible for a communication function. Message delayed Message corruption Message-out-of-order Transmitter not available Masquerading To start with, you might want to have a technical solution in which we have a software component that detects the missi...