Personal database Classifier - Version 1.0 Easley and quickly develop ,test and run decision trees and rules based engine for nominal and numeric prediction using the PDC which is a database classifier tool that enables you to generate business rules based on data stored in your relational database. With the PDC Manager you can create with in few minutes business rules that will help you analyze and predict what are the cause and affect in you business data. However, PDC is not just a tool. Using the PDC ActiveX you can easily and quickly add classification capabilities to your VB programs. PDC is a low cost and very efficient solution for smart users that would like to develop sophisticated software with small budget.