Software testing is a survey to assess information about the service or product provided to the parties concerned. It also offers an independent vision and to the people of the inherent risks involved in using the software to understand.
It serves as a warning system to prevent potential losses and, if properly used.
Different users with different software. For example, a banking software and a banker to be a player would be gaming. Thus, if a company develops and distributes software, you can assess whether the product is acceptable or not and the end user, the software allows you to test this. According to a recent study by NIST, software bugs cost $ 60 billion a year in the U.S. economy. The third is to avoid performing better software testing.
There are several reasons for the failure of the software, such as programming errors, compatible with the earlier / later versions, hardware compatibility, etc. Software testing aims to examine the code and run the test conditions. Some techniques used for this purpose are: 1) Black Box 2) white box 3) Black Box 4) integration, 5) regression, 6) the adoption of 7) The non-functional, and 
Non-destructive testing.
As a common practice, an independent testing group in the test program before the product to the customer. Many software testing approach. This can be achieved by software modules or units of the individual. This is called unit testing. It can also be carried through the entire software at the same time, a number of test cases. This is called system testing. It can be done to verify compatibility with other hardware and software. This is called integration testing. Before the product is sent to the client, further studies of alpha-and beta-testing done. Alpha testing involves testing the final version of the product management of the testers and end users. Beta test was done after the alpha testing of the product by distributing a selected audience outside the test group for feedback.
Test management to a large extent as to be able to point out errors in the code, test software compatibility with other hardware and software, and customer reactions to a product in advance. The limitation of the testing software that can not be tested under all conditions. This is only a limited test of the product under test conditions. Many certification programs that certify the professional software testers. However, certification is not actually controlled by the software testing knowledge and expertise in the area. The qualification is not only capable of testing the ability to ensure that many people believe that it is not yet in the rating. However, this is a rapidly developing field, and promises an exciting career in its candidates.
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