🔍 QUALITY ASSURANCE (QA) vs. QUALITY CONTROL (QC)
Quality Assurance and Quality Control are closely related, but they serve different purposes in construction.
🔹 1. Quality Assurance (QA)
QA focuses on the processes and systems established to prevent quality problems and ensure that work is planned and performed according to requirements.
Examples:
- Establishing a project quality management plan.
- Preparing inspection and test plans.
- Defining responsibilities and approval procedures.
- Ensuring that suitable procedures are available.
🔹 2. Quality Control (QC)
QC focuses on inspecting, measuring, testing, and verifying that materials and completed work meet specified requirements.
Examples:
- Inspecting reinforcement before casting.
- Checking dimensions and levels.
- Testing concrete samples.
- Verifying installed materials against specifications.
🏗️ Practical Example
QA establishes the required concrete inspection and testing procedures.
QC carries out the specified inspections and tests and records the results.
📌 Both systems are important for construction quality, but neither replaces sound engineering design or competent workmanship.
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