Software testing is a critical element of software quality assurance and represents the ultimate reviews of specification, design and coding. Testing represents interesting anomaly for the software. During earlier definition and development phases, it was attempted to build software from an abstract concept to tangible implementation. The testing phase involves the testing of the developed system using various test data. Preparation of the test data plays a vital role in the system testing. After preparing the test data the system under study was tested using those test data. While testing the system, errors were found and corrected by using the following testing steps and corrections are also noted for future use. Thus, a series of testing is performed for the proposed system, before the system was ready for the implementation.



Testing is the process of detecting errors.Testing performs a very critical role for quality assurance and for ensuring the reliability of software.The results of testing are used later on during maintainence also
The aim of testing is often to demonstrate that a program works by showing that it has no errors.The basic purpose of testing phase is to detect the errors that may be present in the program.Hence one should not start testing with the intent of showing that a program works,but the intent should be to show that a program
Doesn’t work.
.
Testing Objectives:
The main objective of testing is to uncover a host of errors, systematically and with minimum effort and time. Stating formally, we can say,
• Testing is a process of executing a program with the intent of finding an error.
• A successful test is one that uncovers an as yet undiscovered error.
• A good test case is one that has a high probability of finding error, if it exists.
• The tests are inadequate to detect possibly present errors.
• The software more or less confirms to the quality and reliable standards.

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