Comparison of Cloud Service Models
This comparison has
been done on the basis of the services that are provided by each type of model,
its Service Level Coverage and the customization flexibility for the different
types of consumers.
|
|
SaaS
|
PaaS
|
IaaS
|
|
Consumers
|
End Users
|
Application Owners
|
· Application
Owner or IT provides OS
· Middleware
· Application
support
|
|
Services Provided
|
Finished applications
|
· Runtime
environment for application
· Cloud
Storage
· Other
Cloud Services such as Integration
|
· Virtual
Server
· Cloud
Storage
|
|
Service Level
Coverage
|
· Application
uptime
· Application
performance
|
· Environment
availability
· Environment
Performance
· No
application coverage
|
· Virtual
Server Availability
· Time
to provision
· No
Platform or Application
|
|
Customizations
|
· Flexibility
from minimal to no customization
· Capabilities
dictated by market or providers
|
· High
degree of application level customization available within constraints of the
service offered
· Many
applications will need to be rewritten
|
· Minimal
Constraints on applications installed on standardized virtual OS builds
|
No comments:
Post a Comment