3.1. Severity
Determine all failure modes based on the functional requirements and their effects. Examples of failure modes are: Electrical short-circuiting, corrosion or deformation. It is important to note that a failure mode in one component can lead to a failure mode in another component. Therefore each failure mode should be listed in technical terms and for function. After that the ultimate effect of each failure mode needs to be considered. The severity codes along with example are given in Table 1.