1. Chapter 5 McGraw-Hill/Irwin Copyright © 2011 by The McGraw-Hill Companies, Inc. All rights reserved. Enterprise Architectures

2. Chapter 5 MANAGING ENTERPRISE ARCHITECTURES 5-3 SECTION 5.1

3. Chapter 5 ENTERPRISE ARCHITECTURES Organization as a whole Data, processes, and IT assets Build, deploy, use, and share 5-6

4. Chapter 5 ENTERPRISE ARCHITECTURES Primary goals of enterprise architectures 5-7

5. Chapter 5 ENTERPRISE ARCHITECTURES 5-8

6. Chapter 5 INFRASTRUCTURE ARCHITECTURE As an organization changes, its systems must be able to change to support its operations 5-20

7. Chapter 5 FLEXIBILITY Today’s and tomorrow’s business needs Systems must be flexible enough to meet all types of business changes 5-23

8. Chapter 5 SCALABILITY Scalability Capacity planning 5-24

9. Chapter 5 RELIABILITY Systems and information 5-25

10. Chapter 5 AVAILABILITY Availability High availability 5-26

11. Chapter 5 PERFORMANCE Performance Not having enough performance capacity can have a devastating, negative impact on a business 5-27

12. Chapter 5 APPLICATION ARCHITECTURE Application architecture With new architectures, IT can build new business capabilities faster and cheaper 5-28

13. Chapter 5 WEB SERVICES Web service Interoperability 5-29

14. Chapter 5 OPEN SYSTEMS Open system Open source 5-32

15. Chapter 5 INFORMATION ARCHITECTURE Backup and recovery Disaster recovery Information security 5-9

16. Chapter 5 BACKUP AND RECOVERY Backup Recovery 5-11

17. Chapter 5 BACKUP AND RECOVERY Fault tolerance Failover 5-12

18. Chapter 5 DISASTER RECOVERY Disaster recovery plan Disaster recovery cost curve 5-15

19. Chapter 5 DISASTER RECOVERY Cold site Warm site Hot site 5-17

20. Chapter 5 DISASTER RECOVERY Business continuity planning (BCP) 5-18

21. Chapter 5 INFORMATION SECURITY Good information architectures include…  A strong information security plan  Managing user access  Up-to-date antivirus software and patches 5-19

22. Chapter 5 ARCHITECTURE TRENDS 5-33 SECTION 5.2

23. Chapter 5 ARCHITECTURE TRENDS 1. Service oriented architecture 2. Virtualization 3. Grid computing 5-36

24. Chapter 5 SERVICE ORIENTED ARCHITECTURE 5-37 http://msdn.microsoft.com/en-us/library/bb264584.aspx

25. Chapter 5 SERVICE ORIENTED ARCHITECTURE 5-38

26. Chapter 5 SOA BUSINESS BENEFITS The key technical concepts of SOA are:  Services  Interoperability  Loose coupling 5-39

27. Chapter 5 SERVICE 5-41

28. Chapter 5 INTEROPERABILITY Interoperability  Extensible Markup Language (XML) 5-43

29. Chapter 5 LOOSE COUPLING 5-44 http://www.information-management.com/infodirect/20070413/1080889-1.html

30. Chapter 5 VIRTUALIZATION 5-45

31. Chapter 5 WHAT ARE VIRTUAL MACHINES? System virtualization  Server virtualization  Desktop virtualization  Application virtualization 5-47

32. Chapter 5 WHY VIRTUALIZATION? Hardware underutilized Data centers running out of space Increased energy costs System administration costs mounting 5-49

33. Chapter 5 VIRTUALIZATION BENEFITS Rapid application deployment Dynamic load balancing Streamlined disaster recovery 5-50

34. Chapter 5 GRID COMPUTING 5-51 http://www.csa.com/discoveryguides/grid/reviewf.php

35. Chapter 5 GRID COMPUTING BENEFITS Access to massive computing and data resources Ensure optimal utilization and costs of computing capabilities Leverages existing capital investments 5-54

36. Chapter 5