What is the primary technique used to validate deliverables?

The primary technique used to validate deliverables is inspection, which involves a thorough review of the completed work against predefined criteria and requirements. This can include formal inspections, walkthroughs, and peer reviews to ensure that the deliverables meet quality standards and stakeholder expectations. Additionally, testing may be employed to verify functionality and performance. Overall, validation ensures that the deliverables are acceptable and ready for deployment or further use.