Independent. A knowledgeable external, third-party organization not involved in the management or development of the product, service or system being reviewed. An entity independent of any internal business considerations or politics of the client organization.
Verification. Confirmation and assurance that a product, service or system meets the needs of the customer and other identified stakeholders. A step-by-step review of activities and results to confirm acceptance and suitability with external customers. The assurance that requirements were met, and the product is structurally sound.
Validation. Inspection and evaluation by examination to determine that a product, service or system complies with a regulation, requirement, specification, or imposed condition, and that it functions as intended.