Testing Methodoligies

 

Structural Testing

• Also called white box testing
• Focuses primarily on structure of the module (i.e. Coverage of Code Specification)includes:

Basic Methods

Basis path Testing - Deriving a logical complexity measure of the procedural design;measure will be used as a guide for defining a basis set of execution paths .

 

Flow Graph Notation - Diagrammatic description of logical control flow.

 

Cyclomatic Complexity - A software metric that provides a quantitative measure of logical complexity of program Graph Matrices

 

Control Structure Testing - Includes condition testing & data flow testing 

 

Loop Testing - Focuses on validity of loop constructs exclusively through tests on simple, concatenated, nested & unstructured loops. 

 

 

Functional Testing

• Also called black box testing. 
• Focuses primarily on functionality of the module.

Basic Methods 

Graph Based - A sequential testing method wherein a graph of important objects & their relationships is created. 

Boundary Value Analysis - A test data selection technique where extreme values are chosen.

Equivalence Partitioning - A testing method that divides the input domain of a program into classes of data from which test cases are derived.

Error Guessing - Taken up when the  personnel are experienced with associated technology( no specific testing tools or techniques).

Orthogonal array Testing - Systematic, statistical way of testing pair-wise interactions.

Comparison Testing – Testing by comparison of independent versions of software developed for critical applications.