From: Keith Knudsen <kknudsen@cerebellumsoft.com>
Date: July 21, 1999
Subject: JTB Questionnaire

1.Please provide a short description of JTB as a recommendation to
someone who has never seen or used it before.

JTB is easy to learn.  Important benefits include the fact that it
leaves your grammar clean and it uses the Visitor pattern.  However, as
a side effect of a clean grammar it seems to be less easy to decorate
your tree using properties attached to the generated Node classes.

   2.How would you classify your use of JTB?  What kind of work are you
doing or have you done using JTB?

I've been writing a custom language for implementing a GOMS model.  The
language has to be compiled from either a file or, in pieces, in an IDE.

   3.What is your opinion on JTB?  Did you find the tool useful?  Please
rate it on a scale from 1 to 10 (worst to best).

8

   4.Have you used other similar tools such as JJTree or ANTLR
(specifically, the tree-building aspect of it)?

Yes, I've used JJTree.

   5.If you answered yes to number 4, how would you compare JTB with
these other tools?  Again, please rate it from 1 to 10 in comparison and
include anything you have to say, including comments on ease of use,
learning curve, etc.

It seems to be much easier to use than JJTree, but it may be a bit less
powerful.

   6.Please include below any other comments you have regarding JTB.
Feel free to include any suggestions for improvement.

It would be nice to be able to assign a different base class for each
auto-generated class.  Also, it would be nice to be able to add comments
in the grammer to be included in the auto-generated classes.