Which statement best describes QA versus QC?

Which statement best describes QA versus QC?

• A. QA audits standards and detects variation; QC ensures necessary procedures to support a quality outcome
• B. QA sets budgets; QC writes user manuals
• C. QA trains staff; QC markets products
• D. QA manufactures products; QC designs products

Answer: (A)

The main idea here is the difference between preventing defects in the process and inspecting the product for defects. Quality assurance is about the process: it involves setting and auditing standards and watching for variation to prevent problems from happening in the first place. Quality control is about the product: it involves testing and inspection to verify that the finished item meets the required specifications. The statement that best captures this distinction says that QA audits standards and detects variation, while QC ensures the necessary procedures are in place to support a quality outcome. In other words, QA makes sure the way we work can produce quality by keeping processes stable and aligned with standards, and QC makes sure the outputs actually meet those standards by applying and following the right procedures and checks. Other options mix in duties that aren’t about QA versus QC, such as budgeting, writing manuals, training, marketing, manufacturing, or product design. Those activities aren’t the core roles of QA versus QC, which focus on process improvement and product verification, respectively.

The main idea here is the difference between preventing defects in the process and inspecting the product for defects. Quality assurance is about the process: it involves setting and auditing standards and watching for variation to prevent problems from happening in the first place. Quality control is about the product: it involves testing and inspection to verify that the finished item meets the required specifications.

The statement that best captures this distinction says that QA audits standards and detects variation, while QC ensures the necessary procedures are in place to support a quality outcome. In other words, QA makes sure the way we work can produce quality by keeping processes stable and aligned with standards, and QC makes sure the outputs actually meet those standards by applying and following the right procedures and checks.

Other options mix in duties that aren’t about QA versus QC, such as budgeting, writing manuals, training, marketing, manufacturing, or product design. Those activities aren’t the core roles of QA versus QC, which focus on process improvement and product verification, respectively.