Components of the business rules may be stored as entries in one or more database tables. A rule editor may access business rule components and assemble the components to form a graphical display of a business rule. The graphical display may allow the user to view, edit and/or create business rules....http://www.google.com.tw/patents/US7451148?utm_source=gb-gplus-share專利 US7451148 - Method of modifying a business rule while tracking the modifications