Testing must be done to ensure that the errors and faults in the software are eliminated. The main aim of testing is to find faults and errors in the software. 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 a method that tests only a particular set of codes or a specific basic program for the software. 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. The testing can be entrusted to an organization or a single tester. More info on unit testing an error can be corrected before moving to the next stage. The unit testing is the most crucial since a recurring error can lead to unidentifiable errors in the integration 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. These group of the integrated units should be functionable and should lack errors. This product is tested using results on the users computer while testing a software is called system testing. How a software operates is the main test done in the system testing category of methods of software testing.
Interface testing is another category of software systems. The interface should meet the customers requirements or the agreed requirements. This interface should always be simple to understand and use and the interface of a software should be attractive and maybe used even to market the software developer. Is the software acceptable by the users and managers of an organization? Is the question to be answered in the acceptance testing. Managers should give reviews about the new software installed in their systems and ask for support where the are unable to understand.
Operation testing is for genuinely assure that the system functions as required by the users. Adding a lot of work to the software system and checking its performance is one basic way of non-functionality testing. 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. A software cannot be used on the users computer of this company if it is not compatible to the computer system available, always check the existing systems before developing a software. 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.