The Implementation of Testing Tool Based on Cause-and-Effect Graph Method

Cause and effect graph is an effective method in function testing. It can find discrepancies between the program and its external specification. It has a beneficial side effect in pointing out incompleteness and ambiguities in the specification. It is a technique that aids in selecting, in a systematic way, a high yield set of testing cases.A testing tool, based on the cause and effect graph is discussed,in detail. It consists of four parts, namely user interface, data transformer, testing information collector,and decision table generator. Some technique methods of tool implementation, such as CEG's physical storage and trace back strategy are introduced. Finally,an evaluation to this system is given.