Computer services, namely, computer consulting services for others; custom software design and implementation for others; and providing application service provider services for others featuring software in the field of contract purchasing arrangements to facilitate business-to-business e-commerce by allowing customers to identify and manage specific contract terms and conditions and incentives, rebates, and payment provisions available; computer software consultation; computer software development for others; computer online services, namely, providing an internet-based web site for settling financial transactions between trading partners, providing a service for buyers, sellers and sellers' agents to share information about invoice disputes, deductions, past-due claims, returns and trade settlement claims and servicing extended trading partners and established trading partners involved in high-volume, high frequency, recurring trade transactions.