Integration Testing Services

System integration testing services
to ensure correct systems interaction

The development of many software products involves their interaction with other
systems and modules, so it is essential to have an idea of the interconnection of
these modules and to check their proper work. Our team can help you with this.

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Software modules must work together as expected.

System Integration Testing Services
When developing a modular architecture of a system or systems that interact with others, particular importance is given to software integration testing. This type of testing is designed to check the integration of modules, their interaction among themselves, as well as the integration of subsystems into one common system. For this, both manual and automated tests can be used. During system integration testing, we conduct the following test stages:

  • drawing up a test plan;
  • creating test cases and case files;
  • performing tests after integrating modules;
  • identifying errors;
  • re-testing.

The primary task of integration testing is to find errors related to the interaction of modules of a system or several systems. This software QA testing allows us to simulate user actions and quickly receive confirmation that the software product successfully interacts with other systems. As a result, all adjacent structures and modules of the same system must work smoothly.

Bottom Up

Bottom Up

In the Bottom Up approach we test the modules of the lower levels first, then those on the way to the top of the hierarchy. This approach requires the readiness of all assembled modules at all levels of the system and allows for determining application readiness based on test results.

Top Down

Top Down

Unlike the Bottom Up approach, in the Top Down, we start testing from high-level modules and then go down, so basic functionality is tested only at the end of the cycle. Low-level modules are substituted by stubs, then, when ready, are replaced by real active components.

Big Bang

Big Bang

The Big Bang approach saves time on testing, as we bring together all modules of all levels and then test them as a whole. However, it is important to remember that this approach requires careful study of test cases, as it may be difficult to track down the cause of the failures due to the late integration.

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Integration Testing Advantages

The advantages of each integration test lie in the prevention of the occurrence of critical errors in software operation, a decrease in the influence of the human factor, and saving costs of fixing defects. Integration tests can be used at any stage of software development and testing and can cover any amount of program code in one sprint. Integration testing may benefit if the development requirements and structure of the created logic of your software are repeatedly subject to adjustments and revisions. It will help to verify the correctness of systems interactions and the accurate data processing throughout the entire business process, also to check the logic of the relationships between the larger parts of an application and identify the defects that arise when the modules are combined.

Integration Testing Advantages

The QA team has been a great help for the release of our new offering, Unfold for Brands. The team has really put themselves in the place of the user to find any bugs or user experience issues, mitigating any potential issues at launch.
Alfonso Cobo
Alfonso Cobo, Head of Unfold at Squarespace
We've worked with QAwerk to handle the QA of our native desktop app. They've done a tremendous job and even went out of their way to ensure the quality of the app. We'll continue working with them in the future.
Julien Berthomier
Julien Berthomier, CEO & Co-Founder at Station

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