here are links to pdf files from the book I just posted about http://media.wiley.com/product_data/excerpt/42/04716539/0471653942.pdf http://media.wiley.com/product_data/excerpt/42/04716539/0471653942-1.pdf here is a review about the software http://www.qualitydigest.com/april00/html/software.html pak List archives at http://lists.ufl.edu/archives/recmgmt-l.html Contact [log in to unmask] for assistance