This article describe about Independent Test Organization, which is an organization, person, or company that tests products, materials, software, etc. according to agreed requirements. During the testing cycle, the test team is supplemented with the readily available developers. They are independent because they are not affiliated with the producer nor the user of the item being tested: no commercial bias is present. They are commonly chosen for specialized expertise, for access to certain test equipment, for surge projects, or where independent testing is otherwise required.