IaaS, PaaS, SaaS - these are terms you may have heard, but do you know the difference? Understanding the cloud stack is an important step in transitioning to the cloud.

1. Understanding the
Cloud Stack
What’s the difference?
IaaS – PaaS - SaaS

2. IaaS – PaaS - SaaS
This is the cloud stack!

3. The Cloud Stack
The cloud stack consists of subcategories of
cloud functionality. It’s described as a “stack”
because it is a broad range of services built
upon one another.

4. Defining IaaS
Delivers computer infrastructure and storage on
demand, via the Internet
Rather than purchasing servers, software, data center
space or network equipment, clients buy those
resources as a fully outsourced service from a
provider

5. What are the benefits?
Scalability
Resources are available at all times
This causes no delays in growing capacity
Eliminate major hardware investments
Physical hardware is set up and maintained
by the cloud provider
Saves time and money

6. Additional Benefits
Location independence
Access data from ANY time ANY place
 All you need is Internet access
Physical security of data center locations
Keycard protocols, biometric scanning protocols and
round-the-clock interior and exterior surveillance monitor
access to every one of our data centers
Only authorized data center personnel are granted
access

7. Defining PaaS
A platform and environment for developers to build
applications and services without the complexity of
building and maintaining the infrastructure typically
associated with developing and launching an app.

8. What are the benefits?
Flexibility
Customers have control over what tools are
installed within their platform
They can create services that best fit their
requirements
No extra physical infrastructure
No need to purchase additional hardware
Focus on the development of applications

9. Additional Benefits
Adaptability
With the pay-as-you-go model, features can
be changed if the circumstances dictate they
should
Work together from various locations
Since all you need is Internet access and a
Web browser, employees can work across
several locations

10. Defining SaaS
 Describes any cloud service where clients are able to
access software applications over the Internet. The
applications are hosted in “the cloud” and can be used
for a wide range of tasks for both individuals and
organizations. Users are able to access the services via
any Internet-enabled device.

11. What are the benefits?
Eliminate set up costs
Scalable, with upgrades available on demand
Access is compatible across all Internet-
capable devices
Anywhere, any time access
Lower overall costs
Improved security
Ability to test software before committing

12. For More Information
Contact Us Today
RapidScale, Inc.
100 Pacifica Ste 100
Irvine, CA 92611
(949) 236-7007
Sales: (866) 371-1355
Support: (866) 686-0328
www.rapidscale.net