One of the key activities while developing software applications is testing. Testing is done at various stages of software development. Testing is required to ensure the products and applications being developed are error free and functioning properly.

Two such types of testing are integration testing and interface testing. These two are different from each other, and are just two of the different types of testing available and required across the life cycle of software development.

Integration testing involves the testing of the different components of an application, e.g., software and hardware, in combination. This kind of combination testing is done to ensure that they are working correctly and conforming to the requirements based on which they were designed and developed.

The other kind of testing we are going to discuss here is interface testing. Interface testing is different from integration testing, in that interface testing is done to check that the different components of the application or system being developed are in sync with each other or not. In technical terms, interface testing helps determine that different functions like data transfer between the different elements in the system are happening ccording to the way they were designed to happen.