SAAS – Software as a Service
Best Part
- Accessible from anywhere through internet
- Good for the collaborative environment
- Subscription basis can save cost instead of investing a huge money
- Reduce Infrastructure Cost, Maintenance Cost, etc.
Need to Think
- Genric Application sometimes not suitable for all business
- But can be archive though customized plugin
PAAS – Platform as a Service
Provide environment and tools for creating new online application
Example: Google App Engine, Iphone IOS, Microsoft Azure Platform
Best Part
- Rapid development at low cost
- Private and public deployments
Need to Think
- Limited developer to provider languages and tools
- Risk of vendor lock-in
IAAS – Infrastructure as a Service
Allow existing applications to sun on a cloud’s hardware
Example- Shared hosting.