A shopping cart built using the session facade pattern and a test client. Ideal for J2EE developers to reuse the source code. Modelled, Architected and designed by Vance King Saxbe. A. with the geeks from GoldSax Consulting, GoldSax Money, GoldSax Treasury, GoldSax Finance, GoldSax Banking and GoldSax Technologies email @vsaxbe@yahoo.com. Development teams from Power Dominion Enterprise, Precieux Consulting. Project sponsored by GoldSax Foundation, GoldSax Group and executed by GoldSax Manager. A Prolog A.I System with U.I to get user information, form a knowledge base and act as an Inference engine for knowledge specific logical queries. Written in Prolog, this is generic and customizable in any domain.