1. Open Networks: Theoretical and Policy Lessons from the Internet Fran ç ois Bar

4. Four broad media categories live delayed interpersonal mass

5. Media archetypes live delayed interpersonal mass telephone mail television newspaper

6. Distinct technical infrastructures live delayed interpersonal mass telephone mail television newspaper Switched network copper wires Packet switched trucks, planes, trains Broadcast network radio waves broadcast network print and deliver

7. Distinct actors live delayed interpersonal mass telephone mail television newspaper AT&T, RBOCs Publishers USPS FedEx, UPS CBS, ABC, NBC, Fox cable channels, cable networks

8. Distinct policy regimes live delayed interpersonal mass telephone mail television newspaper Common carriage Price regulation Universal service Free speech no prior restraint Common carriage Gov nt ownership License

9. live delayed interpersonal mass telephone mail television newspaper voice mail conference call answering machine

10. live delayed interpersonal mass telephone mail television newspaper telegram overnight delivery mass mailing

11. live delayed interpersonal mass telephone mail television newspaper targeted newsletters several editions per day

12. live delayed interpersonal mass telephone mail television newspaper many channels taped programs reruns

13. Internet as convergence live delayed interpersonal mass telephone mail television newspaper ip telephone email listserv web-cast

14. old distinctions become irrelevant live delayed interpersonal mass telephone mail television newspaper ip telephone email listserv web-cast web CU-seeme software updates

16. Three-layer network model Applications Hardware Control

17. Control is flexibly separable Applications Hardware Control

18. Applications Hardware Control Applications Hardware Control Applications

19. Applications Hardware Control Applications Hardware Control Applications SBC AOL

20. Applications Hardware Control Applications Hardware Control Applications Earthlink

21. Applications Hardware Control Applications Hardware Control Applications Corp. LAN

31. A succession of cycles 1. automate 2. experiment 3. re-organize 5. experiment 6. re-organize 4. automate

32. A succession of cycles… made of smaller cycles 1. automate 2. experiment 3. re-organize 5. experiment 6. re-organize 4. automate

33. Key features of the network evolution cycle Iterative Cumulative End-user driven Structured learning Embedded knowledge Path-dependent 1. automate 2. experiment 3. re-organize

34. Co-evolution 1. automate 2. experiment 3. re-organize network organization

35. Co-evolution requires Network flexibility 1. automate 2. experiment 3. re-organize configuration flexibility application flexibility

36. Co-evolution requires Network flexibility 1. automate 2. experiment 3. re-organize configuration flexibility application flexibility deploy a range of applications over a stable network configuration simultaneously - change network configuration to provide new applications and -invent new applications that t ake advantage of new configuration possibilities

37. Network flexibility 1. automate 2. experiment 3. re-organize configuration flexibility application flexibility control layer physical layer application layer

38. Learning: using vs. doing 1. automate 2. experiment 3. re-organize learning by using learning by doing

39. Learning: who learns? 1. automate 2. experiment 3. re-organize learning by using learning by doing network user network provider

40. Corporate network generations automate experiment re-organize automate experiment re-organize automate experiment re-organize public network private network hybrid network web portfolio 1975-85 1995-? 1985-95 ? automate experiment re-organize

44. Mapping E-commerce infrastructure marketplace transaction & payment deliverable

45. Conventional marketplace C-good Mapping E-commerce conventional infrastructure marketplace transaction & payment deliverable Conventional Commerce

46. Electronic infrastructure Conventional marketplace C-good C-good Mapping E-commerce conventional electronic infrastructure marketplace transaction & payment deliverable Conventional Commerce Net-aided Commerce

47. Electronic infrastructure Conventional marketplace Electronic marketplace C-good C-good C-good Mapping E-commerce E-payment conventional electronic infrastructure marketplace transaction & payment deliverable Conventional Commerce Net-aided Commerce Indirect E-commerce

48. Electronic infrastructure Conventional marketplace Electronic marketplace E-good C-good C-good C-good E-delivery Mapping E-commerce E-payment conventional electronic infrastructure marketplace transaction & payment deliverable Conventional Commerce Net-aided Commerce Indirect E-commerce Direct E-Commerce

49. Electronic infrastructure Conventional marketplace Electronic marketplace E-good C-good C-good C-good E-delivery E-payment conventional electronic marketplace Mapping E-commerce Creating new Marketplaces

55. - Discovery + - execution / fulfillment + Existing channels automation E-marketplace Content & Community portals Neutral exchanges Buyers’ agents Sellers’ agents

56. Airline reservation systems automate experiment re-organize automate experiment re-organize automate experiment re-organize SABRE, closed system SABRE as open marketplace Internet direct sales, multiple marketplaces Orbitz, SABRE (travelocity) automate experiment re-organize