11-05-2015, 02:34 PM
A Cloud is a graphical representation of Network / Internet
Five Key Cloud Attributes:
Shared / pooled resources
Broad network access
On-demand self-service
Scalable and elastic
Metered by use
Three Service Delivery Models:
IaaS: Infrastructure as a Service :-Consumer can provision computing resources within provider's infrastructure upon which they can deploy and run arbitrary software, including OS and applications.
PaaS: Platform as Service :- Consumer can create custom applications using programming tools supported by the provider and deploy them onto the provider's cloud infrastructure.
SaaS: Software as Service :- Consumer uses provider’s applications running on provider's cloud infrastructure