providing services and facilities in the electronic commerce field; providing security for data transmitted on open computer-based networks; providing a computer-based communication and dataflow system service for allowing trading partners to transmit purchase orders, solicitations, quotations, invoices, and similar business transaction related messages and documents; providing auditing, archiving, monitoring, certifying and non-repudiation services and mechanisms for computer-based open network dataflow and communications; computer software and system integration, compatibility and installation services for open computer-based networks and software and systems related thereto