Software Quality Assurance Vs. Quality Control: What's The Difference? (2023)

In the fast-paced, multi-billion-dollar software development industry, product quality is of utmost importance. So is the need to be agile and efficient with development processes that mitigate risks and improve deliverables’ timelines.

But how does a software development company such as Vatesensures superior quality services? The answer lies in Quality Assurance (QA) and Quality Control(QC) services.

The two terms, often used interchangeably, overlap in terms of their ultimate goals. However, when it comes to utility, quality assurance and quality control have varying purposes, processes, and approaches.

To find out whether your software solutions need to go through rigorous quality assurance protocols or have strict quality control implemented, read this blog. But let us tell you, do need both to be able to launch a quality product that fulfills the business needs and enhances customer experience!

What is Software Quality Assurance?

Quality assurance(QA) is the process that aims to eliminate flaws in the Software Development Life Cycle by ensuring that the preset procedural guidelines are followed aptly. Covering different phases of the SDCL, quality assurance verifies that the processes designed to develop a product are followed; hence, the end result at each stage complies with the expectations.

Quality assurance servicessuch as Vatesin Argentina have designated professionals (developers and testers) to carry out QA activities based on pre-defined industry guidelines.

What is Software Quality Control?

On the other hand, quality control (QC) is conducted towards the end of the development phase. Often the start of the software testing life cycle, quality control seeks to validate the product quality in accordance with the processes.

(Video) Quality Assurance Vs Quality Control Explained (with MindMap 🔖)

Quality control aims to ensure that the end product is in line with demands and complies with the regulatory standards.

Differences between Quality Assurance and Quality Control

With some similar goals that we’ll discuss towards the end, quality assurance and quality control have numerous differences. Let’s break down the differences between the two and explain you further.

Process Oriented

The software development life cycle (SDCL)is the process of developing a software product. Quality assurance aims to keep a check and balance during the SDCL and ensure that the processes – as decided by the SDCL plan – are being followed to a T.

Software Quality Assurance Vs. Quality Control: What's The Difference? (1)

Product Oriented

On the other hand, quality control starts once quality assurance has been completed during the software developmentlife cycle. Quality control aims to ensure that the product is as per the industry standards, fulfills the initially defined goals, and has optimum quality. Quality control cannot be done prior to the completion of quality assurance that verifies the process.

Proactive Approach

Quality assurance has a proactive approach. By hiring quality assurance serviceslike Vates, businesses ensure that they can detect problems early on during the development phase and avoid delays in the timeline. The process is proactive in nature that is implemented to find out issues that may not have surfaced yet.

Reactive Approach

Quality control has a reactive approach upon completion of the development cycle. The process is carried out after issues are found in the end product and to fix it. By opting for quality control, businesses ensure that the final marketed product is as per their brand’s standards and is consistent in quality with the products prior.

Preventive Technique

Quality assurance is meant to prevent problems and delays. By implementing procedural checks during the development phase, you can prevent all kinds of problems that may result in a financial loss at the end of the cycle.

(Video) QA vs QC | Quality Assurance vs Quality Control - Testbytes

Corrective Technique

In contrast, quality control follows a corrective technique. Software testerssuch as Vatesfind bugs and fix them towards the end of the cycle. This step ensures that the product available to the end-users is nothing less than perfect in terms of functionality and performance.

During SDCL

Quality assurance is carried out during the software development life cycle.

During STCL

After the software development life cycle ends, the software testing life cyclebegins with quality control.

Develop Deliverables

The main goal of software quality assuranceis to create deliverables by following the right processes and protocols pre-defined by quality assurance planning.

Software Quality Assurance Vs. Quality Control: What's The Difference? (2)

Verify Deliverables

Once the deliverables are developed, quality control deploys techniques and uses tools to verify the quality of deliverables. This, in turn, helps businesses learn the gaps between their planning and product outcome and take measures to eliminate them.

Defines Standardized Protocols

Quality assurance is started right from the beginning of a product development life cycle, and therefore it establishes protocols. Software developers and testersboth know the standard set of frameworks they are obliged to follow during the development phase with the help of quality assurance.

Determines Protocol Adherence

But once the developers are done building the product, quality control servicessuch as Vatescheck whether or not the developers and testers adhered to the protocols. They also ensure that the steps were not skipped in between, thus indirectly affecting the performance of the end product.

(Video) QA, QC and QE (Software Testing - Session 52)


Quality assurance is a verification process that verifies the steps for the development phaseand foresees its impact on the final product.


Quality control is a validation process that looks at the final product to validate the authenticity of the procedure by looking at the final product.

Involvement of Whole Development Team

Quality assurance servicessuch as Vatesinvolve all their software developers as well as quality assurance professionals during the quality assurance stage. This helps the developers, testers, and technical teams to fully leverage the quality assurance procedure by giving their professional opinions.

Only the Involvement of the Testing Team

However, once the SDCL is completed and STCL is initiated, only the testing team is involved in the quality control phase. This is to ensure that the non-biased and credible quality control is carried out without hindering the end performance of the product.

Similarities between Quality Assurance and Quality Testing

Despite being very different, quality assurance and quality control also have some similarities as well. Here are some of the same things that both quality assurance and quality control do:

Aim to Deliver High-End Products

Despite following different approaches and techniques, both quality assurance and quality control aim to deliver high-end software products. The two procedures, albeit different routes, aim to achieve the same results towards the end.

Software Quality Assurance Vs. Quality Control: What's The Difference? (3)

Fulfill Customer Expectations

At the end of every successful software development cycle is a customer with expectations waiting to be fulfilled. Quality assurance and quality control seek to fulfill customer expectations by following different sets of actions and protocols.

(Video) Difference between Quality Assurance & Quality Control? (Software Testing Interview Question #73)

Mitigate Risks and Avoid Setbacks

In addition to developing superior quality products, quality assurance and quality control also seek to mitigate risks. While software testing and QAhelps reduce risks during the software development phase, quality control helps eliminate the products before marketing the product. Both these procedures allow businesses to avoid delays and setbacks.

Help Businesses Comply with Regulations

Various industries have diverse regulatory compliances that all businesses must abide by. For example, the medical industry must comply with Health Insurance Portability and Accountability Act (HIPAA)guidelines while developing products, and the construction industry looks up to Occupational Safety and Health Administration (OSHA).

Quality assurance and quality control help businesses comply with industry-specific regulations by closely monitoring the processes and the product.

Increases Brand Recognition

Businesses that invest in outsourced software developmentwish to have a product that increases brand recognition and helps them establish rapport. Good software that has undergone rigorous software quality assurance and software quality control promises a high brand value to the business and its clients.

Believe in Consistency and Quality

Quality assurance and quality control revolve around the ideas of consistency and quality. Both the processes believe in optimizing quality and ensuring consistency of all products churned out by a development company.

Augments Business, Warrants Growth, and Streamlines Processes

Software testing such as quality assurance and quality control delivers on the promise of success and growth for all businesses across all industries. Therefore, businesses that wish to augment operations and grow revenue must streamline their business processes.

Fortunately, streamlining the business processes is doable with superior quality software products that are in line with the company’s goals. And how to get your hands on superior quality software? We just answered that above!

Deliver Superior Quality Software with Vates

Does your business feel it’s lagging behind on the back of redundant and poor-quality software? Do you seek an agile software companyto outsource your development? Then get in touchwith Vatestoday.

(Video) Quality Control vs. Quality Assurance - QC vs. QA

Vatesis a South American software development companythat offers nearshore software development services in the U.S. and North America. Based out of Argentina, Vatesis also a qualified Atlassian partner that offers software testing services, quality control services, and quality assurance services.

For all advanced IoT solutions, IoT consulting, and Big Data consultancy, reach out to Vatesright away. Grow your business with superior quality software development and state-of-the-art testing labs of Vates.


What is the difference between software quality assurance and software quality control? ›

QA is the implementation of processes, methodologies and standards that ensure that the software developed will be up to the required quality standards. QC is the set of activities that are carried out to verify the developed product meets the required standards.

What is the difference between quality assurance and quality control? ›

Quality control can be defined as "part of quality management focused on fulfilling quality requirements." While quality assurance relates to how a process is performed or how a product is made, quality control is more the inspection aspect of quality management.

What is the difference between quality assurance and quality control quizlet? ›

What is the difference between quality control and quality assurance? Quality control is a planned set of activities while quality assurance is monitoring the processes and methods used to ensure quality.

What's the difference between quality assurance QA Quality control QC and software testing? ›

To summarize, Quality assurance is a set of processes that help “avoid” defects and assure quality. While Quality Control is a set of activities that help detect defects and quality issues before the products reach the hands of end customers. Testing is one of the ways of detecting those defects.

What comes first quality assurance or Quality Control? ›

1. What comes first, QA or QC? Since QA is involved during the initial phase of the Software Development and QC is involved during the execution phase of Software Development, QA comes first.

What do you understand by quality assurance and quality control? ›

Quality Assurance (QA) is a combination of activities throughout the manufacturing process that ensures the quality of the product. Consequently, Quality Control (QC) is a set of processes used to secure that the product meets the quality requirements.

Is quality assurance higher than quality control? ›

Quality assurance activities monitor and verify that the processes used to manage and create the deliverables have been followed and are operative. Quality Assurance is a proactive process and is Prevention in nature. It recognizes flaws in the process. Quality Assurance has to complete before Quality Control.

Which are the three main differences between quality control QC and quality assurance QA )? ›

Quality Control:
Quality Assurance (QA)Quality Control (QC)
It is a managerial tool.It is a corrective tool.
It is process oriented.It is product oriented.
The aim of quality assurance is to prevent defects.The aim of quality control is to identify and improve the defects.
4 more rows
Nov 15, 2022

What is the basic difference between quality assurance and quality control Mcq? ›

Quality Assurance is defined as an activity that ensures the software application has no flaws. Quality Control is an activity that ensures the quality of software applications.

What is the similarities between quality control and quality assurance? ›

Similarities Between Quality Assurance and Control

These two ideas are both parts of quality management and share the same goal. They are both about eliminating defects. All stakeholders have an interest in both quality assurance and quality control in achieving this goal.

What are the 4 types of quality assurance? ›

The four types of quality assurance are pre-production inspection (PPI), during production inspection (DPI), pre-shipment inspection (PSI), and container loading/loading supervision (LS).

What are 5 types of quality assurance? ›

The Different Types of QA Software Testing
  • Unit Testing. ...
  • Component Testing. ...
  • Integration Testing. ...
  • End-to-End Testing. ...
  • Performance Testing. ...
  • Regression Testing. ...
  • Sanity Testing. ...
  • System Testing.
Sep 21, 2021

What are the 4 steps in quality assurance? ›

This cycle for quality assurance consists of four steps: Plan, Do, Check, and Act. because it analyzes existing conditions and methods used to provide the product or service customers.

What is quality control in your own words? ›

What Does Quality Control Mean? Quality control means how a company measures product quality and improves it if need be. Quality control can be done in many ways, from testing products, reviewing manufacturing processes, and creating benchmarks. This is all done to monitor significant variations in a product.

What is the main points in quality assurance? ›

Quality assurance includes two principles: "fit for purpose" (the product should be suitable for the intended purpose); and "right first time" (mistakes should be eliminated).

What is an example of quality control? ›

Customer service reviews, questionnaires, surveys, inspections, and audits are a few examples of quality testing procedures that can be used in non-manufacturing businesses. A company can use any procedure or technique to ensure that the final product or service is safe, compliant, and meets consumer demands.

What are the three levels of quality assurance? ›

To establish whether the product fulfils the quality requirements these have to be defined first.
From the top down these levels are:
  • Quality Management (QM)
  • Quality Assurance (QA)
  • Quality Control (QC)

What are the 4 components of quality assurance? ›

Quality Assurance
  • Provide assurance that the project is proceeding according to agreed plans/processes.
  • Measure effectiveness of agreed plans/processes.
  • Capture lessons learned.
  • Identify areas of non-compliance and opportunities for improvement.
Jul 4, 2020


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