What is the difference between QA and software testing?

Tihana Rajnović / 05 Feb 2024
  • Usluga


In the dynamic field of software development, the terms Quality Assurance (QA) and Software Testing are often used interchangeably, leading to a certain level of confusion. It's essential to recognize that while they share a common goal - ensuring the delivery of high-quality software - they play distinctive roles in the development life cycle.

Let us delve deeper into the importance and differences of both QA and testing in order to better understand how an idea becomes quality made software.

What is Quality Assurance or QA?

Quality Assurance (QA) is not just a phase in the software development cycle; it is a comprehensive approach applied in every step of the process. Primarily QA includes preventative measures and continuous improvement during development, ensuring issues are identified and addressed as soon as possible.

This is one of the main advantages of quality assurance, its proactive approach. Implementing a strong QA strategy can result in cost-effective solutions by identifying and rectifying potential issues early in the development process. While software testing costs more than quality assurance in terms of resources, investing in a robust quality assurance process is usually more cost-effective in the long run.

The basis of a quality QA strategy lies in formulating a robust quality assurance software process, which includes comprehensive software QA processes and methodologies. It is also important to form a QA strategy with clearly defined QA activities, roles, steps, and standards. A good strategy with clearly defined processes results in a high-quality product developed without delay and within budget, avoiding costly delays due to technical issues at the end of the development cycle.


What is Software Testing?

In contrast to QA, software testing represents a specific phase in the development life cycle where the quality assurance and software test plan is applied. During this phase, defects and errors are detected and making sure that software functions as intended.

Testing is a critical phase of development so good software testing practices must be applied. Today, this involves various techniques and testing types, notably automated testing alongside unit and integration testing. Automation allows for a more efficient and thorough examination, saving time and money without compromising quality.


Testing teams have specific QA roles and responsibilities in software testing environments, each serving a unique purpose. In this way developers can evaluate software’s functionality, performance, and reliability, making sure it is ready for client use.

Key Differences Between QA and Software Testing

Understanding the key differences between QA and software testing is paramount for effective software development. QA is holistic, focusing on overall process improvement, while software testing is specific, ensuring the correctness of the developed software.

Although both are indispensable, the scope, objectives, and methodologies employed set them apart. The comparison between QA and software testing is not about superiority but about recognizing their unique contributions to the larger goal of delivering high-quality software.


How do QA and Software Testing Work Together?

QA and software testing are a part of the same system, both having important differences and unique strengths. While QA focuses on the overall quality strategy, software testing is the phase in which detailed test plans are executed.

Together they create a synergy where a well-defined QA strategy paves the way for effective testing, ensuring all software aspects align with the highest quality standards. This, not only reduces the likelihood of defects, but also enhances the efficiency of the testing process.


In conclusion, the comparison between QA and software testing highlights their distinct roles and contributions to the software development life cycle. Understanding and implementing both efficiently ensures the delivery of high-quality software that meets user expectations and industry standards.