... were testing the Problem Tracking System, you would list its reports, as in Figure 12 .6. You gain a lot from a simple list like this. If you were testing the tracking system, then during most testing ... tasks of testing. • Test documentation improves communication about testing tasks and process. • Test documentation provides structure for organizing, scheduling, and managing the testing project. ... testing unless they do glass box testing. Two experiments, by very credible researchers, have failed to find any difference in error-finding effectiveness between glass box and black box testing. ...