Pairwise Testing Guide: How To Perform Pairwise Testing

Pairwise Testing Guide: How To Perform Pairwise Testing

You should not rely on pair tests when different teams or team members hardly interact with each other, as this approach is all about communication and seamless collaboration. It helps to build an effective and high-performing team willing to share knowledge and take up challenging roles helping them to grow personally and professionally. When experts from different teams or roles work together, they can share unique critical perspectives looking at the existing software product or application.

Each tester works independently; no one is made aware of his or her tester pair to avoid biasing test data. Systematic discrimination against certain groups still persists, often in subtle ways. Paired testing, also known as auditing, is an effective and intuitive way to test whether and in what form discrimination exists. In a paired test, two people are assigned fictitious identities and qualifications that are comparable in all key respects. The identities differ only on the characteristic being tested. Each tester of a pair then applies for the same opportunity and documents the interaction.

Paired t-test example

One of the main benefits of pairwise testing is that it can help identify defects that may not be discovered through other testing methods. For example, consider a software application that allows users to customize the font and color of their text. Testing all possible combinations of these variables without all pairs testing would be difficult. However, by pairwise testing, testers can quickly and efficiently generate test cases that cover all possible combinations of font and color. This can help ensure that the software functions as expected and that users are not experiencing unexpected issues or errors.

What is an example of pair testing

Pair testing is a process in which more than two people simultaneously work on the same feature on a single machine, with a frequent exchange of ideas and feedback. To ensure that your web or mobile app runs flawlessly, testing it in real user environments is important. Using a real device cloud, you can simulate real-world scenarios and ensure that your app runs without any glitches in an actual production environment. Given the nature of their work, developers and testers frequently operate in isolation. Pair testing encourages communication between multiple team members with various job descriptions and aids in bridging those silos.


A platform that he uses for teaching and coaching others, sharing knowledge with people, and guiding them towards success while giving them the inspiration and tools to discover their own path. Aids in developing new perceptions and approaches, which leads to improved effectiveness. It helps us find bugs, which we otherwise would have missed. It can be used when we can’t implement exhaustive testing due to certain circumstances and the application is in a critical state. We can use Pairwise testingWhen there are many parameters like different input variables, several configurations.

What is an example of pair testing

Pair testing is one of the ways to encourage effective collaboration. It is a great method to get a new and different perspective on the software with little to no bias. It provides a perfect opportunity for testers, developers, product owners, and other participants in the SDLC to make software a lot better in terms of overall quality. It might not be a deeply technical approach, just like test automation, but it tends to offer many benefits. Let us assume that a software organization is working on a telecom product with different teams working in agile to deliver customer requirements.

Cypress Testing

The figure below shows a t-distribution with 15 degrees of freedom. The distribution of differences is normally distributed. Each of the paired measurements are obtained from the same subject. Each of the paired measurements must be obtained from the same subject. For example, the before-and-after weight for a smoker in the example above must be from the same person.

What is an example of pair testing

These should give you a good foundation to get started and ask the right questions. Pair testing is usually done with a tester and a developer or two testers, but the tester can pair with anyone they think would make a good partner such as customer support, product management, or even marketing. Testers typically pair up with developers or other testers. Still, they can pair up with anyone they believe would be a good match, such as customer support, product management, or marketing. This also helps provide additional insights to the rest of the team members.

Objectives of Pairwise Testing

The figure below shows results for the paired t-test for the exam score data using JMP. You can use the test when your data values are paired measurements. For example, you what is pair testing might have before-and-after measurements for a group of people. Also, the distribution of differences between the paired measurements should be normally distributed.

Since we have pairs of measurements for each person, we find the differences. Sometimes, we already have the paired differences for the measurement variable. Other times, we have separate variables for “before” and “after” measurements for each pair and need to calculate the differences. You may set unrealistic value combinations, even ones that the user might never come across.


An example of Pair Testing is when a tester and developer test a product together. A business analyst or solution designer can also pay the tester a visit to go through the feature. A rigorous exploratory test begins here, and the tester may discover some defects. My employees use pair testing as an essential element of their development process. Pair testing is an important software testing approach that includes two individuals or team members working on a single workstation/keyboard to evaluate various parts of a software system. This sort of testing is classified as ad-hoc testing since it involves pairing two people to work on the same software product and the same device.

  • Aside from that, it aids in the development of intern-team partnerships.
  • If we find any trouble and want to register them in a bug registration system the trouble is automatically revisualize, therefore walking in pairs will help each other to be sharp.
  • • It becomes difficult for the team to define the portions of the test that has been performed.
  • A developer and tester team can help quickly replicate issues, identify root causes, and solve them.
  • Using a visual, you can check to see if your test statistic is a more extreme value in the distribution.

I could have solved the problem on my own, but partnering aided us in finding it faster. The primary objective of pairwise testing would be to examine all possible pairs of test values and check whether the application performs as expected. Usually, we use techniques like boundary value analysis, equivalence partitioning to find out individual parameters for inputs. In Pairwise testing, we analyze the application to identify the range of value pairs to test that will help us uncover the highest percentage of defects. Pair testing is not very adaptive as a method, so unlike other more commonly used types, it won’t be a part of every software testing requirement.

During the session

A group of people with dry skin use a medicated lotion on one arm and a non-medicated lotion on their other arm. After a week, a doctor measures the redness on each arm. We want to know if the medicated lotion is better than the non-medicated lotion. We do this by finding out if the arm with medicated lotion has less redness than the other arm.