What primary assurance does library control software provide?

The primary assurance provided by library control software is that program changes have been authorized. This assurance is critical in the context of managing changes to software and applications within an organization. Library control software is designed to manage and track modifications to programming code, ensuring that any changes made to the code have gone through the proper authorization channels before they are implemented.

This function is essential for maintaining control over the development process and helps to prevent unauthorized or unintentional modifications that could lead to errors or security vulnerabilities. By requiring authorization for changes, the organization can ensure that only approved updates are applied, which is in line with best practices for change management and risk mitigation in software development environments.

In contrast, while ensuring that programs are properly tested, moved to production, or maintaining code integrity are important aspects of software development and deployment, the fundamental role of library control software centers on validating the authorization of changes. Hence, the emphasis on the authorization aspect makes that option the most accurate representation of the primary assurance provided by library control software.