Apparatus, methods and articles of manufacture for n-tier transaction execution and processing are shown. The first layer comprises a presentation layer in the form of a user interface for entering instrument orders, modifying orders, and monitoring orders, instruments and markets. The second layer comprises...http://www.google.com/patents/US20020143690?utm_source=gb-gplus-sharePatent US20020143690 - Apparatus, methods and articles of manufacture for computerized transaction execution and processing
