Here the analysts are try to find areas where modules have been designed with different specifications for data length, type, and data element name. It is used to find discrepancies between the system and its original objective, current specifications, and systems documentation. In Integration Testing, the analyst tests multiple module working together. It identifies maximum errors in a program as compared to other testing techniques. In unit testing, accuracy of program cannot be assured and it is difficult to conduct testing of various input combination in detail. It is carried out with the intention of executing each statement of the module at least once. Testing can be of various types and different types of tests are conducted depending on the kind of bugs one seeks to discover − Unit TestingĪlso known as Program Testing, it is a type of testing where the analyst tests or focuses on each program or module independently. These results are then assessed against criteria in the test specification to determine the overall outcome of the test. Test result file contains brief information about the total number of test cases executed, the number of errors, and nature of errors. This document also specifies any special requirements and formats for reporting the result of testing. These procedures are specified in a separate document called test procedure specification. It consists of the steps that should be followed to execute each of the test cases. The test cases along with the test plan are documented as a part of a system specification document or in a separate document called test specification or test description. Factors responsible for successful completion of testing processĪ number of test cases are identified for each module of the system to be tested.Įach test case will specify how the implementation of a particular requirement or design decision is to be tested and the criteria for the success of the test.Procedures and standards required for planning and conducting the tests.Availability of tools, facilities, and test libraries.Responsibilities and time required for each testing activity.The test plan provides the following information − It provides a plan for testing the system and verifies that the system under testing fulfils all the design and functional specifications. It should satisfy all the needs of an organization. It is a statement that provides information about the various levels, methods, tools, and techniques used for testing the system. The following stages are involved in testing − It is conducted by the developer for small projects and by independent testing groups for large projects. Different testing techniques are used at different times while testing the system. System testing begins at the module level and proceeds towards the integration of the entire software system. It is a process of evaluating system with an intention of creating a strong system and mainly focuses on the weak areas of the system or software. It executes the program with explicit intention of finding error, i.e., making the program fail. It is an expensive, time consuming, and critical approach in system development which requires proper planning of overall testing process.Ī successful test is one that finds the errors. Testing is the process or activity that checks the functionality and correctness of software according to specified user requirements in order to improve the quality and reliability of system. System testing and quality assurance come to aid for checking the system. The software system needs to be checked for its intended behavior and direction of progress at each development stage to avoid duplication of efforts, time and cost overruns, and to assure completion of the system within stipulated time.The software system needs to be checked for its intended behavior and direction of progress at each development stage to avoid duplication of efforts, time and cost overruns, and to assure completion of the system within stipulated time.
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