1. Technology Guide Three Cloud Computing

2. Plug IT In OUTLINE TG 3.1 Introduction TG 3.2 What Is Cloud Computing? TG 3.3 Different Types of Clouds TG 3.4 Cloud Computing Services TG 3.5 Cloud Computing Benefits TG 3.6 Concerns and Risks with Cloud Computing TG 3.7 Web Services and Service-Oriented Architecture

3. LEARNING OBJECTIVES 1. Describe the evolution of IT infrastructure 2. Describe the key characteristics and advantages of cloud computing 3. Identify a use-case-scenario for each of the four types of clouds 4. Explain the operational model of each of the three types of cloud services 5. Identify the key benefits of cloud computing 6. Discuss the concerns and risks associated with cloud computing 7. Explain the role of Web services in building a firm’s IT applications, providing examples

4. Introduction: Evolution of modern IT infrastructure –1950s: Stand-alone mainframes –1960s: Mainframe and dumb terminals –1970s: Stand-alone personal computers –1980s: Local area networks (client/server computing) –1990s: Enterprise computing –Currently: Cloud computing and mobile computing

5. What is Cloud Computing? Definition Characteristics –Provides on-demand self-service –Encompasses grid computing to provide high performance computing –Encompasses utility computing to provide resources as needed –Utilizes broad network access –Pools computing resources –Often occurs on virtualized servers

6. Different Types of Cloud Computing Public clouds Private clouds Hybrid clouds Vertical Clouds

7. Cloud Computing Services Three service models of cloud computing –Infrastructure-as-a-Service (IaaS) –Platform-as-a-Service (PaaS) –Software-as-a-Service (SaaS)

8. Cloud Computing Benefits Making individuals more productive Facilitating collaboration Mining insights from data Reduce costs Expand scope of business operations Respond quickly to market changes Customize products and services

9. Concerns and Risks with Cloud Computing Legacy IT systems Cost Reliability Privacy Security The regulatory and legal environment

10. Web Services and Service-Oriented Architecture Web Services Service Oriented Architecture