TESTING - TESTING POLICY Vs QUALITY POLICY

Testing Policy:

- A management definition of testing a department.

- Involves four criteria.

· Definition.

· Testing System.

· Evaluation.

· Standards.

Quality Policy:

- Providing customer satisfaction for first time and every time.

Testing Economics:

Testing Levels:

- Four Levels.

· Unit testing.

· Integration testing.

· System testing.

· Acceptance testing.

Unit Testing:

- The individual unit of the software are tested in isolation from other parts of a program.

Integration Testing:

- Software units of an application are combined and tested for a communication interfaces between them.

- Three types.

· Big bang testing.

· Bottom up testing.

· Top down testing.

- Big bang testing

· software components of an application are combined all at once into a overall system.

· Every module is first unit tested in isolation from every module.

· Each module combined all at once and tested.

- Bottom Up Testing

· The modules at the lower leveld in the hierarchy first and then working up the hierarchy until final module is tested.

· Appropriate for object oriented systems.

- Top Down Testing

· The modules at the higher levels in the hierarchy first and then to the lower level modules.

System Testing:

- Conducted on a complete, integrated system’s compliance with its specific requirements.

Acceptance Testing:

- Testing conducted by client to evaluate the system compliance as per the business requirements.