a coupling issue

A number of evaluators have associated displays to which they were closely coupled. This has been addressed by combining the evaluator and display into a single class. To do this, display requests now pass a display object to the UI rather than a class. The evaluator then simply passes itself in the display request.

The next step in laying the groundwork for display events is to change the prompts to classifiers. It is then the responsibility of the UI to create the appropriate prompt for the user. By passing classifiers, the UI is now told directly what type of input is expected and can make adjustments accordingly.

Bill