The primary purpose of system validation is to establish documented evidence that a system consistently and accurately performs according to its predefined specifications and intended use. This process confirms that the system is fit for purpose by demonstrating that user requirements are met. While meeting regulatory requirements is a critical driver, the fundamental goal of those regulations is to ensure systems function correctly to maintain data integrity and patient safety. Therefore, proving the system works as intended is the most fundamental and primary reason for validation.

A. This is a consequence of successful validation. A system is released for use after it has been proven to work as intended.

B. The validation plan is a document that outlines how validation will be conducted. Fulfilling the plan is a procedural step, not the primary objective.

C. Meeting regulatory requirements is a crucial driver for validation, but the regulations themselves exist to enforce the primary goal: ensuring systems are fit for their intended use.

1. U.S. Food and Drug Administration (FDA). General Principles of Software Validation; Final Guidance for Industry and FDA Staff. (January 11, 2002). Section 3.1.2, "What is Software Validation?". The document defines validation as "confirmation by examination and provision of objective evidence that software specifications conform to user needs and intended uses, and that the particular requirements implemented through software can be consistently fulfilled." This directly supports that the primary reason is to prove the system works as intended.

2. Society for Clinical Data Management (SCDM). Good Clinical Data Management Practices (GCDMP). Section 4.3, "Computerized System Validation." The GCDMP states that the purpose of validation is to "ensure that a system will perform its intended functions accurately, reliably, and consistently." This aligns directly with proving the system works as intended.

3. U.S. Code of Federal Regulations. Title 21, Part 11.10(a), "Controls for closed systems." This regulation requires "Validation of systems to ensure accuracy, reliability, consistent intended performance, and the ability to discern invalid or altered records." The phrase "consistent intended performance" is synonymous with the system working as intended.