Cloud Computing

by Robb Vdte

1. Risks

1.1. Loss of service

1.2. Regulatory problems

1.3. Security concerns

1.4. Lock-in dependency on proprietary cloud applications

1.5. One-sided service agreements

2. What

2.1. IT Service

2.2. Business use

2.3. Access to everything from everywhere

2.4. Virtual servers

2.5. On-demand computing resources (sharing)

2.6. Applications & data centers

3. Characteristics

3.1. Elasticity & scalability

3.2. Standardized interfaces

3.2.1. Application programming interfaces (APIs)

3.3. Self-service provisioning

3.4. Billing & service usage metering

4. Different kinds

4.1. Software as a Service (SaaS)

4.1.1. Providing a given application to multiple tenants

4.2. Platform as a Service

4.2.1. Variant of SaaS

4.3. Infrastructure as a Service

4.3.1. Set up virtual data center

4.4. Web-based cloud services

4.4.1. Let you exploit certain web service functionality

4.5. Utility cloud services

4.5.1. Virtual storage & server option

4.6. Managed services

4.6.1. Oldest iteration of cloud solutions

4.7. Service Commerce Platforms

4.7.1. Mix of SaaS & managed services

4.8. Internet Integration

4.8.1. Different providers

5. Reasons

5.1. Use of device

5.1.1. PC, smartphone & tablet

5.2. Streamline process

5.2.1. More work in less time

5.3. Easy access to information

5.4. Almost unlimited storage

5.5. Backup & recovery

5.6. Save money

6. European market

6.1. Amazon EC2

6.2. Google App Engine

6.3. IBM

6.4. Microsoft Azure

6.5. Critix

6.6. Netsuite