A conceptual study of Test case design by Investigating the various principles and aspects

Test case is a important factor in the testing. It is prefers in concept test driven development (TDD). The main background of this concept were using/writing the test case,because many things are taken into consideration while writing the test case. The aim of this paper is apply the test case principles and its aspect properly. Otherwise it directly affects on testing and ultimately on project results. Test case is playing an important role in the testing phase. Test case should be written in either manually or automated. In the market there are ready made tools are available. Like test director. In the traditional testing, test case is manually generated. The measure part of this paper are to discuss various test case aspect, and its principles. A tipical test bed formate is also mention for reference.