Differences between Interface and Integration Testing Last Updated : 11 Jul, 2025 Summarize Comments Improve Suggest changes Share Like Article Like Report Interface Testing: Interface Testing is a type of software testing type that checks the proper communication between two different software systems. Interface is the connection that integrates two components. The interface could be anything like APIs, web services etc. Testing of these connecting interfaces is defined as Interface Testing. An interface is actually a software that consists of sets of commands, messages and other attributes that enable communication between a device and a user. Integration Testing: Integration testing is the process of testing the interface between two software units or module. The focus of integration testing is on determining the correctness of the interface. Integration testing exposes faults in the interaction between integrated units. After the unit testing of all the modules, integration testing is performed. Integration Testing is the type of software testing where software modules are integrated logically and tested as a group. A typical software project consists of multiple software modules that are coded by different programmers. Integration Testing focuses on verifying data communication among these modules. Below is the differences between Interface and Integration testing: Interface TestingIntegration TestingInterface testing is carried out to test an interface to verify the expected result.Integration testing is performed to verify the end to end functionality of the integrated components.Interface testing is tricky and boring.Integration testing is easy but lengthy.Interface testing is mostly automated.Integration testing is manual and automation both.Interface testing is performed only on the code.Integration testing is performed on both code and GUI of the application.Interface testing is done on interfaces like APIs, web services, connection strings etc.Integration testing is done on integrated components. Comment More infoAdvertise with us Next Article Differences between Functional and Non-functional Testing P pp_pankaj Follow Improve Article Tags : Difference Between Software Engineering Software Testing Similar Reads Difference between System Testing and Integration Testing Introduction : System testing and integration testing are two critical types of software testing that are used to ensure the quality and reliability of software products. Integration testing is a type of testing that focuses on verifying the interfaces and interactions between software components or 4 min read Difference between Unit Testing and Integration Testing Unit Testing: Unit Testing is a type of software testing where individual software components are tested. Unit Testing of the software product is carried out during the development of an application. An individual component may be either an individual function or a procedure. Unit Testing is typical 2 min read Difference between Integration Testing and Sandwich Testing 1. Integration Testing :Integration Testing is the type of software testing where software modules are integrated logically and tested as a group. Integration Testing major focuses on verifying data communication among these modules. It is the collection of the modules of the software, where the rel 4 min read Difference between Input and Output Interface Unit Computer system operates the computation on the digital signals but the user sends analog signals to the computer system. Interface Units are basically used for the conversion of the signals in the computer system so that mutual communication and understanding can be established between environment 2 min read Differences between Functional and Non-functional Testing What is Functional Testing?Functional testing is a type of software testing in which the system is tested against the functional requirements and specifications. Functional testing ensures that the requirements or specifications are properly satisfied by the application. This type of testing is part 2 min read Difference between Top Down and Bottom Up Integration Testing Prerequisite - Integration Testing 1. Top Down Integration Testing : Top Down Integration testing which is also known as Incremental integration testing. In this Top Down approach the higher level modules are tested first after higher level modules the lower level modules are tested. Then these modu 4 min read Like