Requirement engineering and management are key activities in order to prioritize the requirements, reduce the risks, costs and support your customer in the most efficient way so that you can reach your goals.
Before developing any E/E system, customer requirements shall be analyzed and the system requirements shall be specified. Correspondingly the system and software architectures are vital to be created for the project planning and management so that the risks of your complex system are mitigated.
Moreover, the traceability of the requirements improves your capability level.