دانلود کتابچه راهنمای چرخه عمر نیازها، الزامات، تأیید، اعتبارسنجی

This Needs, Requirements, Verification, Validation Lifecycle Manual (NRVVLM) presents systems engineering lifecycle concepts from the perspective of needs, requirements, verification, and validation (NRVV) definition and management across the system lifecycle.

“Needs, Requirements, Verification, and Validation are common threads that tie all lifecycle activities and processes together.” Lou Wheatcraft

For final acceptance, certification, and qualification, the system is verified against design input requirements and validated against the integrated set of needs. To successfully complete system verification and system validation, the needs and requirements of the system as well as the system verification and system validation artifacts must be managed throughout the entire system lifecycle; this Manual provides practical guidance on the activities required to achieve those outcomes.