Practicality is the concept of tests, which are different. The test should be modernized, Standards, and accountability. A study of those involved in the development, testing and revision process, such as length of the test, for example, testers may have to take the time to understand the test for too long can cause be tried. It can make error in the exam. In addition, testers have to take into account the cost of the general test at an appropriate level.