The certification process can be presented as a general process, suitable for process certification, product certification or material certification.
This process is a basic process that cannot be missing in an engineering environment. It is often a misunderstanding that 'approval' is the same as 'release'.
Change management activities start when a product change is requested by someone. In this initial phase it is not expected to have a detailed specification of the change, because that is exactly what needs to be investigated. To be able to accept the change request the goal of the modification needs to be clearly described, in other words: what will be solved and what are the consequences if the change request will not be executed. Based on the description the change is processed further or already rejected at the start.