System Assurance is the process a project shall adhere to ensure that its goals are delivered safely and reliably as well as meet its objectives. This involve assuring the products and the systems used as well as assuring the process followed in the system development.

System Assurance (SysA) is the planned and systematic set of engineering activities necessary to assure that products conform with all applicable system requirements for safety, security, reliability, availability, maintainability, standards, procedures, and regulations, to provide the user with acceptable confidence that the system behaves as intended in the expected operational context.