How is a requirement defined in the context of systems engineering?

In the context of systems engineering, a requirement is defined as a clear statement that identifies a characteristic or constraint of a system. This definition emphasizes the need for specificity and clarity in requirements, which are essential for guiding the design, development, and validation of a system. Well-defined requirements serve as the foundation for planning, execution, and assessment within a project, ensuring all stakeholders have a shared understanding of what the system should achieve and the boundaries within which it must operate.

Having clear characteristics aids in setting measurable criteria for success, enabling engineers and designers to create solutions that meet the intended purpose while adhering to constraints such as performance, safety, and regulatory compliance. This clarity is fundamental in avoiding ambiguities that could lead to misunderstandings or misinterpretations during the project lifecycle.