Software QA

A Boolean graph linking causes and effects. The graph is actually a digital-logic circuit (a combinatorial logic network) using a simpler notation than standard electronics notation.

A tool used to identify possible causes of a problem by representing the relationship between some effect and its possible cause.

A statistical method for distinguishing between common and special cause variation exhibited by processes.

a diagram that visualizes the order of testing activities and their corresponding phases of development

The individual or organization, internal or external to the producing organization, that receives the product.

Using defects as data for continuous quality improvement. Defect analysis generally seeks to classify defects into categories and identify possible causes in order to direct process improvement efforts.

A form of manual static analysis usually performed by the originator. Source code documentation, etc., is visually checked against requirements and standards.

The process of a computer carrying out an instruction or instructions of a computer. Exhaustive Testing: Executing the program with all possible combinations of values for program variables.

A form of safety analysis that assesses hardware safety to provide failure statistics and sensitivity analyses that indicate the possible effect of critical failures.

Another term for failure-directed testing.

Program statement sequence that can never be executed.