The National Institute of Standards and technology has a good, concise definition of cloud computing. Sushil kumar of Oracle, was using the same language to define cloud computing in an article the current release of the oracle magazine.
Essential Charachteristics
- On Demand Self-Service
- Broad Network Access
- Resource Pooling
- Rapid Elasticity
- Measured Service
Service Models
- Cloud Software as a Service (SaaS)
- Cloud Platform as a Service (PaaS)
- Cloud Infrastructure as a Service (IaaS)
Deployment Models
- Private Cloud
- Community Cloud
- Public Cloud
- Hybrid Cloud