Exploratory Testing is a type of software testing where Test cases are not created in advance, but testers check system on the fly. They may note down ideas about what to test before test execution. The focus of exploratory testing is more on testing as a “thinking” activity
​

Exploratory Testing is widely used in Agile models and is all about discovery, investigation, and learning. It emphasizes personal freedom and responsibility of the individual tester.
​

Tester selected a component, sample files, project to create, and  defined steps to preform, if anything doesn’t go as expected by user, an exploratory bug is logged