The behavior predicted by the specification - or another source - of the component or system under specified conditions.

The process of identifying differences between the actual results produced by the component or system under test and the expected results for a test. Test comparison can be performed during test execution (dynamic comparison) or after test execution.

The capability of the software product to re-establish a specified level of performance and recover the data directly affected in case of failure. [ISO 9126] See also reliability. The ability of the software product to perform its required functions

A method to determine test suite thoroughness by measuring the extent to which a test suite can discriminate the program from slight variants (mutants) of the program.

The ease with which the software product can be transferred from one hardware or software environment to another. [ISO 9126]

A pointer within a web page that leads to other web pages.

A high level metric of effectiveness and/or efficiency used to guide and control progressive test development - e.g. Defect Detection Percentage (DDP).

Two persons - e.g. two testers - a developer and a tester - or an end-user and a tester - working together to find defects. Typically - they share one computer and trade control of it while testing.

The degree to which a component - system or process meets specified requirements and/or user/customer needs and expectations. [After IEEE 610]

The activity of establishing or updating a test plan.

Acronym for Computer Aided Software Engineering.