Before moving further towards introduction to software testing, we need to know a few concepts that will simplify the definition of software testing.
* Error: Error or mistake is a human action that produces wrong or incorrect result.
* Defect (Bug, Fault): A flaw in the system or a product that can cause the component to fail or misfunction.
* Failure: It is the variance between the actual and expected result.
* Risk: Risk is a factor that could result in negativity or a chance of loss or damage.
Thus Software testing is the process of finding defects/bugs in the system, that occurs due to an error in the application, which could lead to failure of the resultant product and increase in probability of high risk. In short, software testing have different goals and objectives, which often include:
1. finding defects;
2. gaining confidence in and providing information about the level of quality;
3. preventing defects.
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