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Modern applications no longer have an architecture that is built on self-contained, monolithic code. They combine various components, services, APIs, third-party systems, and databases that should communicate with each other and work together. Integration testing is focused on checking that multiple units interact seamlessly, data flows correctly, and dependencies behave as expected. This validation procedure reveals issues that can only be identified when components are combined.

Companies are facing pressure from CI/CD pipelines while struggling to find qualified testing specialists locally. The old model of traditional outsourcing — simply delegating tasks without integration — is giving way to offshore partnerships.

Stability testing is usually overlooked until there is a problem that arises at the most inconvenient time. Think of an application that is working flawlessly during a demo. Users are able to log in, click buttons, and perform tasks without any problems. Everything seems stable. But after four hours of continuous usage, the application begins to slow down. Pages take longer to load. Actions freeze. Finally, the application crashes. This is more common than many development teams realize.