What is a set of procedures that includes usability testing, code validation and Web site optimization?

• A. Quality assurance
• B. User experience
• C. Accessibility testing
• D. Deployment plan

Answer: (A)

Quality assurance is a set of procedures designed to ensure a product meets defined standards and works reliably. Including usability testing helps verify that real users can complete tasks easily and efficiently, code validation checks that the markup and scripts follow web standards and catch syntax or compatibility issues, and Web site optimization focuses on improving load times, responsiveness, and overall performance. When combined, these activities form a comprehensive QA approach that reduces defects and improves reliability before and after release. Other options target different aims: user experience focuses on the overall feel of using the product, accessibility testing targets making the site usable by people with disabilities, and a deployment plan centers on releasing the product rather than ongoing quality checks.