Cloud computing

1. Characteristics

1.1. On-demand self-service

2. Cloud clients

3. Service models

3.1. Infrastructure as a service (IaaS)

3.2. Platform as a service (PaaS)

3.3. Software as a service (SaaS)

4. Production used in Hong Kong

4.1. printers

4.2. files store in emails

5. Deployment models

5.1. Public cloud

5.2. Community cloud

5.3. Hybrid cloud

5.4. Private cloud

6. Architecture

6.1. The Intercloud

6.2. Cloud engineering

7. Definition