Learning objectives Define exchanges and describe their major types 2. Describe the various ownership and revenue models of exchanges 3. Describe B2B portals 4. Describe third-party exchanges 5. Distinguish between purchasing(procurement) and selling consortia Electronic Commerc Prentice Hall 2006Electronic Commerce Prentice Hall © 2006 2 Learning Objectives 1. Define exchanges and describe their major types. 2. Describe the various ownership and revenue models of exchanges. 3. Describe B2B portals. 4. Describe third-party exchanges. 5. Distinguish between purchasing (procurement) and selling consortia