Testing must be done to ensure that the errors and faults in the software are eliminated. Recognition of error is basically the function of testing. Every testing process should be done before testing begins and should be based on the customers requirements. Testing of a software is done by a software tester. Now there are different methods of testing depending on the tester he or she can test both the structural and the functional features of a software. Software testing can be categorized in the below methods.
Unit testing is the basic method of checking errors in a program and the codes in the program. The basic faults are now recognized like the syntax and logic errors the testing can be structural where one identifies the code errors or the functionality where the results faults are identified. This may be done by a single tester or a group of testers to ensure that there is no room for future errors. It is advisable to correct the errors immediately they are identified. Ensure that all errors are eliminated in the unit testing stage.
Integration testing is a category of testing done after combining the basic software units. Integration testing errors can originate from poor testing at the unit testing stage or an error that occurs while integrating the various programs. The unit compatibility is done in the integration testing category and correction measure are put to ensure the testing process continues smoothly. This product is tested using results on the users computer while testing a software is called system testing. The system testing deals with the functionality of the system.
Interface testing is a method that can be used to categorize the basic types of testing. Users are asked on their opinion about the interface of the software and whether they can click the buttons in the interface. The interface projection should be eye catching for users and easy to understand so as to allow easy marketing of a software developers product. Acceptance testing is checking whether the software is appreciated by the users and the owners of the company. Managers should give reviews about the new software installed in their systems and ask for support where the are unable to understand.
Non-functionality testing can be done to ensure that the software performs as required. Loading jobs on the computer and processing them with the software is one of the ways of checking whether the performance meets the users requirements. Recovery testing should be done in order to reduce the cost of maintenance of a software and should be done after all testing is done. Compatibility testing can be done either during the system testing or during the system installation phase. In conclusion I would advise both people who learn about testing and professional testers to use all the above testing categories when testing a software.