Two parts of construction quality management that work together to ensure a finished product meets client requirements and is free of defects. What term describes this combined approach?

• A. QA
• B. QC
• C. QA/QC
• D. QMS

Answer: (C)

In construction quality management, preventing defects while ensuring the finished product meets client requirements comes from combining two focused activities: quality assurance and quality control. QA is process-oriented and aims to prevent defects by defining and enforcing how work should be done—establishing standards, procedures, training, supplier controls, and quality plans. QC is product-oriented and aims to detect defects in the actual product—through inspections, tests, measurements, and verifications against specifications.

When these two work together, they’re described as QA/QC. This integrated approach means you design and follow good processes to prevent issues, and you also verify the actual product to catch any defects before delivery, creating a feedback loop that prevents recurrence. For example, QA might specify concrete mixing procedures and inspection requirements, while QC conducts strength tests and dimensional checks to confirm compliance. If a defect is found, QC identifies it and triggers corrective actions, and QA adjusts the process to stop it from happening again.

The broader term QMS refers to the entire quality management system, which includes QA and QC among other elements, but the description of their combined practice is specifically QA/QC. QA or QC alone cover only one side of the equation—prevention or detection—without the integrated, corrective loop.