What is End-to-End testing?

In End-to-End Testing we take the application from the starting phase of the development cycle till the ending of the development cycle. We can simple say that it comes into play when we take requirement from the customer till the end of the delivery of the application. The purposes of End-to-End testing are:

- Validates the software requirements and checks it is integrated with external interfaces.
- Testing application in real world environment scenario.
- It involves testing of interaction between application and database.
- Executed after functional and system testing.
- End-to-End testing is also called Chain Testing.