A study conducted by NIST in 2002 reported that software bugs cost the U.S. economy $59.5 billion annually. More than a third of this cost … See more

Software testing is typically goal driven.
Finding bugs
Software testing typically includes handling software bugs – a defect in the code that causes an undesirable result. Bugs generally slow testing progress and involve See more

Roles
In an organization, testers may be in a separate team from the rest of the software development team or they may be integrated into one team. Software testing can also be performed by non-dedicated software … See more

Some of the major software testing controversies include:
Agile vs. traditional Should testers learn to work under conditions of uncertainty and constant change or should they aim at process "maturity"? The agile testing movement has … See more

Glenford J. Myers initially introduced the separation of debugging from testing in 1979. Although his attention was on breakage testing ("A successful test case is one that detects … See more

Testing can be categorized many ways.
Automated testing
Levels
Software testing can be categorized into levels based on how much of the software system is the focus of a test.
Unit testing See more

Software verification and validation
Software testing is used in association with verification and validation:
• Verification: Have we built the software right? (i.e., does it … See more