Difference between quality assurance and quality control - Quality Assurance vs Quality Control

Summary

This video explains the key differences between Quality Control (QC) and Quality Assurance (QA) in a clear and practical way. QC focuses on detecting defects in the finished product and is a reactive process, whereas QA ensures that the processes used to create products are effective, making it proactive. The video highlights differences in goals, responsibilities, approaches, and statistical techniques, showing that QC is usually handled by a dedicated team, while QA involves everyone in development. Real-world examples like inspections, audits, and checklists illustrate how both functions contribute to maintaining high-quality standards in organizations.

Takeaways

• 😀 Quality Control (QC) focuses on verifying the quality of the finished product and identifying defects.
• 😀 Quality Assurance (QA) focuses on ensuring the quality of the process used to produce the product.
• 😀 QC is a reactive process that deals with product outputs after they are developed.
• 😀 QA is a proactive process that aims to prevent defects during the development process.
• 😀 The goal of QC is to detect and correct defects before product release.
• 😀 The goal of QA is to improve development and testing processes to prevent defects.
• 😀 QC relies on tools and equipment to find and eliminate sources of quality problems.
• 😀 QA involves establishing a quality management system and conducting periodic audits to ensure compliance.
• 😀 QC is usually the responsibility of a specific testing team, whereas QA is the responsibility of everyone involved in product development.
• 😀 Statistical techniques differ: QC uses Statistical Quality Control (SQC) on finished products, while QA uses Statistical Process Control (SPC) on process inputs.
• 😀 QA activities are planned before production and performed during development, whereas QC activities are performed after the product is developed.
• 😀 Examples of QA activities include process checklists, project audits, and standards development.
• 😀 Examples of QC activities include inspections, deliverable peer reviews, and testing processes.

Q & A

What is the main difference between Quality Control (QC) and Quality Assurance (QA)?

Quality Control focuses on verifying the quality of the product by identifying defects, while Quality Assurance focuses on ensuring the quality of the process to prevent defects.

Is Quality Control a proactive or reactive process?

Quality Control is a reactive process because it deals with detecting and correcting defects after the product is developed.

Is Quality Assurance a proactive or reactive process?

Quality Assurance is a proactive process because it focuses on improving processes to prevent defects from occurring.

What is the main goal of Quality Control?

The main goal of Quality Control is to identify defects in the product after it is developed and before it is released.

What is the main goal of Quality Assurance?

The main goal of Quality Assurance is to improve development and testing processes to prevent defects during product development.

Who is responsible for Quality Control?

Quality Control is usually the responsibility of a specific team that tests the product for defects.

Who is responsible for Quality Assurance?

Quality Assurance is the responsibility of everyone involved in developing the product.

What statistical techniques are used in Quality Control and how are they applied?

Quality Control uses Statistical Quality Control (SQC) techniques, which are applied to finished products to detect defects.

What statistical techniques are used in Quality Assurance and how are they applied?

Quality Assurance uses Statistical Process Control (SPC) techniques, which are applied to processes and operational parameters to prevent defects.

Can you provide examples of Quality Assurance activities?

Examples of Quality Assurance activities include creating process checklists, conducting project audits, and developing methodologies and standards.

Can you provide examples of Quality Control activities?

Examples of Quality Control activities include inspecting products, peer reviewing deliverables, and testing products to ensure they meet quality standards.

When are Quality Assurance activities performed compared to Quality Control activities?

Quality Assurance activities are performed during the product development process, while Quality Control activities are performed after the product has been developed.