Quality Assurance (QA) vs. Quality Control (QC): What’s the difference?


Don’t they sound similar? But they are totally separate from one another.

Mostly, we use the words QA and QC regularly, but we may mix up and use it interchangeably, and sometimes, in the wrong manner!! With the help of this blog, you can get clarification about the exact difference between the two and use it properly.

Why the confusion?
More than similar sounding words, the confusion between QA and QC occurs as they are significant to each other on multiple terms.

The Difference
As per the definition, quality assurance is how errors and mistakes in the process are prevented. Whereas quality control includes testing to identify defects and fix mistakes.

QA is a proactive process and aims to resolve the issues through process design. Along with this, it includes the detailed SOPs that go into the process. It is more like a managerial task.

QC on the other hand is reactive and takes place after it has occurred. This process is corrective. QC issues can question a QA process, as quality assurance backs a quality control process.

QA processes include Audits, Documentation, Change Control, Personnel Training, etc.
QC processes include Inspection, Testing, Corrective steps, Validation, etc.

Another major difference between the two is the difference in creation and verification. QA involves the roadmap in creating the product and includes the design, standards, procedure, review, audits, etc. that would go into it. QC involves all that occurs after the product is launched. It includes testing, checking the efficiency, and other post-development procedures.

Quality Assurance Solutions require the involvement of the whole team in following the SOPs for creating a product. There is also a quality management team overlooking the whole process and a leadership team that reviews it. On the other hand, QC is reviewed by a special team that looks after the process of QC by following its SOPs. They validate the process and let the others know what is missing and the corrective measures to be taken for it.

Here’s a simple infographic that helps you understand better.

Verification is an example of Quality Assurance.
Validation / Testing is an example of Quality Control.

There is always a blurred line between both the processes, which can create confusion between QA and QC. Every organization has its standards for completion of these processes, which can be different, but the methodology is similar. Inculcating the best practices for a successful quality program is essential for the organization’s success.

An expert team of professionals who are aware of the industry’s best practices and conform to them is beneficial for the quality of any product or process. With Inspiredge’s experience of 10+ years, you get a comprehensive solution for maximum output and 100% accuracy.

In conclusion, Quality Assurance (QA) and Quality Control (QC) are often used interchangeably, but they refer to different aspects of the quality management process. QA involves planning and implementing processes to ensure that a product or service meets or exceeds customer expectations, while QC is focused on the inspection and testing of products or services to identify and correct defects. Both QA and QC are essential to the overall success of a product or service, as they work together to ensure that the end-result meets the required standards and satisfies the customer. However, it’s important to note that QA is a proactive process, while QC is reactive, it’s important to maintain a balance between both of them to guarantee a high-quality end product or service.

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