Defination of Interface Testing Interface Testing is a type of testing process used to validate the interaction between the two systems or applications that are involved in the software application. In this testing, the interface of the application is verified for its behavior when other integrated applications are establishing connections or trying to transfer contents amongst one another. These Interfaces can be of different types reliant to the developer’s choice or the development team’s preference, like a web service, an API or a Macro service. So it is done to verify and test the communication between the two software or the components of the same software. It includes testing of interfaces like APIs and web administrations. Interface testing is one among the foremost important testing so as to make sure smooth and safe communication between the components in software. An interface is basically a software that involves a set of commands, images, messages, etc to enable t...