A Methodology of Requirements Validation for Aviation System Development

Systems engineering is an interdisciplinary field of engineering and engineering management that focuses on how to design and manage complex systems over their life cycles. Requirements engineering is one of the main steps in systems engineering processes. Requirements validation is the process of ensuring that the specified requirements are sufficiently correct and complete so that the product will meet the stakeholder needs and expectations. The development of civil aviation systems requires high-quality products to be generated to ensure compliance with certification issues and safety considerations. Therefore, a formal approach to systems engineering is applicable and a well-defined process of requirement validation is necessary. This paper presents a requirement validation methodology for aviation systems development. The full paper describes the model and methods for the requirements validation process and identifies each step in the process in detail, including inputs, outputs, roles and responsibilities, and activities. This proposed methodology is executable for implementation and compliant with the certification guideline ARP4754A. Its applicability and completeness are tested via a dedicated case study.