A requirement is a documented, testable statement that defines what a product or system must do and the constraints under which it must operate. In requirements management, requirements translate stakeholder needs into clear, measurable specifications that guide engineering, verification, and compliance.
Requirements typically include functional requirements (what the system must do) and non-functional requirements (how it must perform, including safety, security, usability, reliability, and regulatory constraints).
Well-defined requirements are specific, unambiguous, traceable, and verifiable—reducing rework and ensuring teams build the right product.
In modern requirements management software, requirements are not static documents. They are connected across the lifecycle to tests, risks, design artifacts, and change requests. This end-to-end traceability enables impact analysis, faster validation, and regulatory compliance in complex industries such as automotive, aerospace, and medical devices.
Clear, governed requirements are the foundation of scalable, compliant product development—and the starting point for successful digital engineering.