If you are looking for the answer to what is Quality Assurance (QA) then you have come to the right place. In this software QA testing guide, I will explain everything about Quality Assurance, the benefits of QA, why do you need it, and how to choose the best QA company to hire the right QA team. Especially, we will talk mostly about Quality Assurance for software products and services. Let’s begin and go through the whole article to know everything about quality assurance and testing.

Quality Assurance – QA

Explaining Quality Assurance on QA testing Guide.
Figure 01: Quality Assurance

Quality assurance (QA) is the term used in many sectors. Software, manufacturing, and other services industries must ensure that the product or service they deliver to customers meets the contractual commitments of performance, design, reliability, and maintainability expectations.

Before deep diving into this QA testing guidelines, let’s understand Quality and Assurance properly. 

What is Quality?

Fit for use or purpose is the simplest way to describe quality, which is incredibly difficult to quantify. It all comes down to fulfilling the requirements and expectations of the consumer in terms of the product’s:

  • Usefulness
  • Design
  • Dependability
  • Durability
  • And pricing

What is Assurance?

A positive affirmation of a good or service that inspires confidence is all that assurance is. A product or service’s likelihood of doing well. It ensures that the software product will perform flawlessly under expectations or standards.

What is Quality Assurance Testing (QA Testing)?

QA testing is used to verify that the software products or services are of the right quality and comply with the established standards. Quality assurance testing continuously monitors all software engineering processes, activities, and methodologies utilized in a project. Continue reading this QA testing guide to find out more about qa testing.

Some of the most common software Quality Assurance or QA testing categories are:

  • Functional Testing
  • Performance and Load Testing
  • Network Testing
  • Usability Testing
  • Security Testing

Quality Assurance (QA) Vs. Quality Engineering (QE)

Although both QA (Quality Assurance) and QE (Quality Engineering) seek to enhance the quality of your product, the main difference between them is when software developers intervene to make their enhancements. Testers are brought in for Quality Assurance after a product is completed but before it is made available for purchase. In the meanwhile, many use Quality Engineering in each stage of software product development. Take a look at the comparison:

SubjectQA (Quality Assurance)QE (Quality Engineering)
DefinitionQuality Assurance (QA) is methodical procedure used to determine that the product or service satisfies predetermined requirements. It is performed after the product is developed and before releasing it in the market.Quality engineering is concerned with the methods of quality assurance and control for products and services. It is performed from the beginning to the end of a software development process.
FocusQA creates and upholds standards for creating or producing dependable products.Quality engineers endeavor to guarantee the overall quality of manufactured goods.
ScopeUtilizing the proper test kinds, designs, and methodologies to identify flaws as early as possible is the aim of quality assurance.Quality engineering uses quality assurance techniques like shift left and shift right, where testing starts early on in the development process.
ApproachQuality Assurance (QA) approaches are defining quality, measuring quality, and improving quality.Agile and DevOps approaches are particularly well suited for Quality Engineering.
Table: QA Vs QE

What are the Benefits of QA (Quality Assurance)

Explaining Benefits of Quality Assurance in QA testing Guide.
Figure 02: Benefits of Quality Assurance

You may ask yourself, “What Are The Benefits Of Quality Assurance?” Well in this QA Testing Guidelines, I’ll give you a quick rundown of those advantages. I can tell you right now that the benefits are huge, extensive, and priceless when properly put into practice.

Numerous advantages of quality assurance are available to the organization and the clients. The QA should be implemented for the following reasons.

Here are some of the real benefits you can anticipate, followed by information on how to obtain them:

Improve Product Efficiency

When all production components are in good working order, production efficiency happens. This entails superior components, an absence of flaws, functional equipment, a suitable workspace, and qualified personnel. Doing QA testing help reduce lessen the time and resources for efficient production.

Cost Efficiency

Quality assurance testing is also cost-effective. As a result of the QA, defects, returns, repairs, and other cost-related concerns are avoided from the start.

Gain Customer Trust

Customer trust in a brand, a product, and a company is determined by the quality of the product. The business output’s quality may be raised by doing QA testing. Customers will respond favorably to it and have more confidence in the company.

Enhance Business Growth

Consistent quality standards and cost-effectiveness are among the requirements for growing a business. Regular QA testing aids in maintaining these crucial corporate operations, notably in the software industry. Additionally, it might assist the company in gaining the confidence of investors and possible commercial partners.

Establishing Better Work Environment

Better workplace conditions are a result of quality assurance. Reducing dangerous behaviors and dangers ensures that both the environment and employees are in the best possible circumstances for production.

History of Quality Assurance (QA)

Since the beginning of human history, society has always aimed for quality. It may be traced back to the construction regulations in ancient Greece and the Egyptians who constructed the pyramids. 

The concepts of current quality assurance, which aim to ensure product quality, initially became well-known with guilds in the Middle Ages. Reference: History of Quality assurance

Following that, the new age started with the contemporary philosophy of quality assurance was born during the Industrial Revolution. These talented artisans were forced to labor in factories rather than join guilds to make a living. This was a result of using Frederick Winslow Taylor’s recommended techniques.

The Evolution of Software QA Testing

It is helpful to discuss the history of quality assurance and how we came to utilize certain techniques, such as Agile and Waterfall, while discussing software quality assurance since, in many respects, the mistakes and achievements of the past have had an influence on our perspective of quality today.

Since the beginning of software development after World War II, developers have been testing their work. 

But a lot has changed if you skip ahead to the 1990s and 2000s.

Hardware was transformed with IBM’s 1981 release of the PC (and the several copies it inspired). Programmers could now code for just one hardware platform, at least for the consumer market.

PCs did not all look the same by the 1990s, of course. Each machine’s hardware and software configuration may differ significantly. However, developers were under growing pressure to produce software that ran well on any device marketed as PC-compatible.

Types of Quality Assurance Testing

Presenting types of Quality Assurance Testing in QA testing guide.
Figure 03: Types of QA Testing

Every software tester frequently encounters many QA testing types, some of which they have experience with and others they have just heard. Unfortunately, not everyone knows how many QA testing methods affect the product’s overall quality. QA Testing may be divided into human and automated processes at a high level, but there are several other types. In this QA testing guidelines, I have listed various types of QA testing for better understanding Quality Assurance and Testing.

Here are 10 various QA testing types, including:

  • Unit Testing
  • Component Testing
  • Integration Testing
  • End-to-End Testing
  • Performance Testing
  • Regression Testing
  • Sanity Testing
  • System Testing
  • Smoke Testing
  • User Acceptance Testing

Unit Testing

Unit testing is a low-level testing method used to test certain components or functions of the program currently being developed. This type of testing helps to understand the core functioning of the code by testing each testable component of the product. It also determines the likelihood that any change will result in a bug, which can be swiftly found and rectified.

Component Testing

After unit testing is complete, component testing enables testers to evaluate numerous units or components inside a single code. This type of testing helps find potential flaws that can appear once the components are joined by utilizing actual data and examining how separate components operate independently without integration.

Integration Testing

The following stage in the QA testing lifecycle is integration testing, which determines if your application’s various modules or services function properly together. Integration testing determines if a system or component complies with the necessary functional requirements by grouping various components and testing them all at once.

End-to-End Testing

End-to-end testing aids in evaluating the performance and functioning of the product in real-world situations. It assists in simulating what a real-world situation would look like and confirms that the different user flows function as planned by simulating user behavior in product-like settings.

Performance Testing

Performance testing enables testers to examine the system’s behavior under heavy demand. QA for Performance tests check the product’s dependability, stability, and availability by evaluating various components under various loads. They also help to determine whether adding more load would cause the system’s performance to suffer.

Regression Testing

Testing an application after a change or update has been made is possible using regression testing. It checks to see if previously designed, and tested software still operates as expected after bug patches, software upgrades, or configuration changes by conducting functional and non-functional tests.

Sanity Testing

Sanity testing, a type of regression testing, assists testers in determining if new code modifications or feature upgrades operate well enough to proceed through further testing. If the program crashes, the system is unreliable enough for more testing, and a new build is created to address the issues.

System Testing

System testing helps QA teams to assess how an application’s many components work together as a whole, integrated system. It is focused on ensuring that every type of user input results in the desired output and is based on evaluating the entire operation of the program.

Smoke Testing

Smoke testing examines the application’s fundamental functioning to ascertain whether key system components are operating as planned. Smoke tests are particularly helpful in deciding whether additional expensive tests on the application in the newly deployed environment are necessary following a new build. Additionally, they aid in determining if faults are serious enough to reject a potential software release.

User Acceptance Testing

User acceptance tests are carried out as the last test in the QA lifecycle to see if it can handle real-world scenarios shortly before the product is released. It determines if the system fulfills business requirements by simulating user behavior and rejects updates if certain requirements aren’t fulfilled.

Understanding the various QA testing types is essential for knowing which tests to run at when stages of the development lifecycle and ensuring the product you offer to your consumers satisfies the necessary quality, reliability, and performance criteria.

QA Best Practices for Maximum Results

No one can be on the sidelines for quality assurance to be genuinely effective; it must be everyone’s responsibility and dedication. Best practices for an efficient, thorough QA process in the sections below.

  • Creating robust testing sorroundings
  • Selecting release categories carefully
  • Applying automated testing
  • Proper allocation of time for each QA process
  • Prioritizing bugs fixes based on usage of software
  • Building dedicated and trusted security testing team and more

Let’s read more QA best practices for an end-to-end and comprehensive Quality Assurance process.

Make Sure It is an Effort from All

Mission-critical is quality assurance. The QA process needs to be prioritized by the company, according to the CEO and board. Good QA methods and culture are not created by chance; rather, they are actively maintained.

Specify Precise Procedures for the QA Team

The idea of QA is to provide “in-process verification points” to guarantee the appropriate level of product quality. You must concentrate on establishing precise goals and creating robust checklists.

Start the Process Early

The QA process must be started early in the project’s life cycle. Too frequently, QA is placed towards the end of a project; as a result, project timeframes are unduly prolonged when the team ultimately finds they need additional time to “test.”

Build Reliable Gate Each Phase of the Project

Establishing quality gates is crucial in software technology. The quality gate should be more strict in the initial phases since this will reduce expenses in the later phases.

Put Transparency First

Transparency is a top priority for businesses that supply the highest-quality products. This is particularly true for makers of smart products who must take into account various linked components.

Utilize Test Automation

Tech leads should utilize automation in their testing process and apply automation strategies that will significantly cut down on QA time as QA is increasingly focusing on automated testing. 

Facilitate Inter-Functional Collaboration

Collaboration is a crucial aspect of quality Assurance that is sometimes overlooked. Engaged, cross-functional teams may support you and one another while also fostering advocates for QA throughout your company.

Test on Multiple Devices

Testing your new service, product, or website on a variety of gadgets is essential for maintaining a successful quality assurance team. You’re more likely to receive favorable comments and active participation from your audience if you test how things perform on all widely used devices.

What is the Future of Software QA / Quality Assurance?

Software QA engineers are the unsung heroes of the software industry. It’s no longer only about identifying and fixing software product flaws, a crucial testing task that is frequently kept apart from core procedures and development teams.

Quality assurance testing is increasingly seen as completely integrated across the whole software development life cycle, from conception to delivery.

QA engineers are now coordinating quality management across the whole business instead of only serving as a backup.

Future of Software Quality Assurance Testing
Figure 04: Future of Software QA

Here are a few more significant QA and software testing trends that we believe you should be aware of. Technology for software development is evolving so is sustainability. Read the top trends that reshaping software qa testing from this ultimate QA testing guide.

AI (Artificial Intelligence), ML (Machine Learning technology, IoT, and Cybersecurity are changing the future of software QA testing. Let’s find out how these new technologies affect future software testing trends.

Automated Testing / Test Automation

For instance, the development of scriptless automated testing helps quick scaling by lowering the amount of code necessary in test frameworks. 

Automated testing may save costs and time, especially for complicated projects with many repeating steps. Additionally, it provides improved reporting capabilities, which any seasoned QA engineer would agree is just as crucial as finding defects. 

QA using AI and ML

In the upcoming years, machine learning (ML) and artificial intelligence (AI) will impact all facets of software development, including QA. As AI is embedded into the program, QA engineers must adapt to verify its usefulness and security. On the other hand, QA itself may be improved by using AI and ML to advance automated testing.

Testing in Cybersecurity

With the unexpected increase in work-from-home, Cybersecurity had become a more urgent concern for businesses, especially those that didn’t have established security procedures before the pandemic struck. An efficient QA testing process is essential for building a safe IT system since you can use it to identify your company’s vulnerabilities before others. 

IoT Testing

With the fast expansion of the Internet of Things (IoT) network, the transition to a more connected, online world will only quicken. As new IoT devices, platforms, protocols, and operating systems are introduced, there will be an exponential increase in the number of combinations that need to be verified.

Security, usability, interoperability, data flow, and general performance must be tested throughout IoT development. These new requirements will once more inspire innovation in QA testing frameworks and technologies in the upcoming years.

Why do You Need Quality Assurance for Your Product or Services?

Now in this QA testing guidelines, I would like to discuss why you need Quality Assurance for your products and services. All businesses should use quality assurance to guarantee that their goods and/or services meet high standards. The procedure guarantees consistency, stops errors before they happen, and solves any issues. Examiners, who might work for the company or be independent, are necessary for quality assurance. They assess the various approaches and offer suggestions. Why is quality assurance so crucial?

5 Reasons Why Quality Assurance is Important for Any Business

There are many benefits of QA, especially for the businesses that provide products and services. Companies must save time and money while improving their product or service quality and reputation to ensure long-term benefits. Whoever running business can read the reasons of QA services in this QA testing guide.

Let’s look at the most crucial benefits of QA for a company.

Quality assurance saves time and money

It takes time to develop error-catching systems at the beginning of the process, but if errors are allowed to occur or are out of control, it takes much longer to correct them. An excellent example is the creation of software. An investigation revealed that correcting a mistake later might take up to 150 times longer in the requirements design stage.

Because of the expense, some organizations might be hesitant about quality assurance, although it ultimately saves money. It is less expensive to invest in issue prevention than in problem repair. Since nothing is wasted, quality assurance methods help reduce material costs.

Quality Assurance Improves Business Reputation

Reputation is important for a business. Customers will prefer to continue with a company they trust even if another product or service is available due to their loyalty. All stakeholders, including suppliers and investors, value reputation. Stakeholders only support and collaborate with companies that have a solid reputation. Proper quality assurance can gain customers’ trust and build a company’s reputation.

Quality assurance ensures long-term profit

Quality assurance increase revenue. Because consumers are ready to pay more for higher quality, many firms are likewise able to boost the price of their goods. A company will be promoted by devoted stakeholders, which results in increased sales and long-term profit.

Quality assurance ensures consistent results

Consistency in services and products is crucial in a business. A company’s good standards can gain a significant impact. According to quality assurance, every item or service wearing the company’s name must be the same. No consumer will receive anything inferior to or superior to another customer.

Quality assurance improves the quality of the products

Producing high-quality products is the aim of quality assurance. As they use a product or service, customers will provide suggestions for how to improve it. Additionally, companies that value quality will be open to suggestions and use them to expand and improve their offerings. Consequently, customers continue to be happy and loyal to the business.

How to Choose a Quality Assurance Company?

Figure 05: Choosing the Right QA Company

In the midle of this QA testing guide, I would like to enlight you about how you can choose the right QA company. Contracting with an independent software testing / QA team to perform the testing job saves the organization time and money regardless of the project scope and frequency of testing needs. Outsourcing the QA needs to a professional QA team can save your business money and hassle.

But how to choose the right QA company for your QA operation? Before outsourcing QA services from a company, you must consider the following facts carefully:

  • The Engagement Models
  • Team Location
  • Service Level Agreement (SLAs)
  • Mobilization
  • Flexibility & Scalability
  • Quality Improvement
  • Change Management
  • Intellectual Property Protection
  • Communication
  • People
  • Security

Latest Software Testing Tools

Latest Software Testing Tools
Figure 06: Latest Software Testing Tools

These software testing solutions can speed up product delivery for any automated software program, let you automate testing, and run various software tests. Here is a list of the latest software QA Testing tools.

  • Autify
  • Kobiton
  • testRigor
  • QA Wolf
  • Testim
  • Testsigma
  • Kualitee
  • Aqua ALM
  • Mabl
  • Global App Testing

Cost of Hiring a QA Team

How much does it cost to outsource Quality assurance team? Understanding your company’s goals and identifying the required success criteria are crucial when setting the QA outsourced budget. Companies typically weigh recruiting in-house staff or assembling specialized teams of developers and testers before beginning product development. Creating a product includes a step called quality assurance, which is mistakenly undervalued in favor of code development. In reality, testing must be a key component, and the sooner you bring QA specialists on board, the better your outcomes will be.

Indeed, according to Glassdoor, the average Quality Assurance Manager makes between $70,00 and $100,000 per year, while QA specialists at firms like IBM, Amazon, and Sapient make over $100,000. It is the scenario of the USA itself. Reference: QA Manager Salary


After reading the whole QA testing guide, I think it is clear that the Quality Assurance is important for every business. QA aims to determine if the generated product is usable. For instance, the organization should have procedures to follow and standards that must be updated regularly. It focuses mostly on the product/service quality we offer consumers when implementing software. Experts in quality assurance work with long-term initiatives and comprehensive plans. Here, concrete measurements are crucial because the team would quickly lose sight of its goal without them.


FAQs or Frequently Asked Questions and Answers on Quality Assurance. Read the FAQs about QA and QA testing from below.

What should I ask in QA?

When you know that you need Quality Assurance for your products and services, you may need to contact QA experts. To help you, I have listed some general QA interview questions, including:
1. Why should we hire you for QA?
2. How did you find out about this QA job opportunity?
3. Why do you want this job as a QA professional?
4. What are the greatest strengths you achieved in your QA career?
5. How do you handle remote QA projects?

What are the challenges in Quality Assurance?

Given the responsibilities of the position, it is only normal for QAs to encounter several difficulties in their daily work. Here, I have listed some cruicial challenges of QA. Let’s find out.
1. Unstable environment
2. Coordination gap among developers and testers
3. Tight deadlines
4. Fixing bugs during testing
5. Testing documents made by third-party
6. Wrong test estimation
7. Last moment changes to requirements

What is the most critical competency a QA should possess?

A skilled QA professional may think beyond the box in terms of technologies and procedures. Having intuition is a valuable ability to possess. It is a good thing to be curious and to try to understand and resolve problems using both testing and intuition. Those who can trust their instincts develop wisdom as they gather experience.

Who is in charge of QA?

Role and Duties of a Software Quality Assurance Manager is important to the team. The first person to discover how collaboration influences a project’s outcome is a test manager. This individual is accountable for the result in the perspective of a product owner.

What are top skills for QA testers?

Originally, a quality assurance tester would have to be skilled in a variety of areas, including leadership, in order to carry out these duties.
1. Planning and organization
2. Communication
3. Statistical investigation
4. Problem-solving
5. Specialized technological expertise

This page was last edited on 21 September 2022, at 2:05 pm