Functional testing in software testing

Functional Testing

1.       Functional Testing is a Type of Testing conducted to – test the functionality of the application with respect to the requirements

2.       Also referred to as Black Box Testing

3.       Functional test cases are derived from the functional requirements of the software and are the basis for system testing. These help you in testing if the required functionality is working as per the specifications.

·         Ensure that the system under test is operational as per the customer requirements.

·         Verify whether the application is ready for release.

what is Error, Bug, Fault, Failure and Defect in software testing

What is an error?

Error is deviation from actual and expected value.

It represents mistake made by people.

What is a fault?

Fault is incorrect step, process or data definition in a computer program which causes the program to behave in an unintended or unanticipated manner.

Quality Assurance and Quality Control in software testing

The terms “quality assurance” and “quality control” are often used interchangeably to refer to ways of ensuring the quality of a service or product. The terms, however, have different meanings.

Assurance: The act of giving confidence, the state of being certain or the act of making certain.
Quality Assurance: The planned and systematic activities implemented in a quality system so that quality requirements for a product or service will be fulfilled.

Control: An evaluation to indicate needed corrective responses; the act of guiding a process in which variability is attributable to a constant system of chance causes.