Brief introduction and in-depth analysis of the Cloud Service models. SaaS, PaaS, IaaS and Other Cloud Computing Service Models - Characteristics - Responsibilities - Challenges - Examples

1. Shashank Viswanadha
Cloud Enthusiast | Software Engineer
https://www.linkedin.com/in/viswanadhashashank/

2. ▪SaaS Service Model
▪PaaS Service Model
▪IaaS Service Model
▪Other Cloud Computing Service Model
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3. ▪ Software as a Service
▪ Considered the original cloud service model
▪ Typically web-based applications that don’t require any
special clients
▪ Service provider is responsible for virtually everything
but client systems
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Characteristics

4. ▪ Limited customization
▪ Centralized support and managed by the service
provider
▪ Analytics, usage stats and trends available by the
provider
▪ Integration limitations
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Characteristics

5. ▪ Disparate location
▪ Latency
▪ Multi-tenancy
▪ Little to no customization
▪ Security issues-shared access to data between customers if
flaws in application
▪ Security
▪ Employees of service provider have full access to systems
housing data
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Challenges

6. ▪ Outlook.com (Email service)
▪ Google Drive (Storage service)
▪ Salesforce.com
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Examples

7. ▪ Platform as a Service
▪ Customers provided with a platform to use for their
computing requirements
▪ From operating systems to full development platform including web server and
development libraries
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Characteristics

8. ▪ Full control of application customization
▪ Typically limited or no customization to platform itself.
▪ Customer has full visibility to all application usage and trends
▪ Usually, ability to view platform usage analytics too.
▪ Integration
▪ Data stored at provider side but customer has direct access.
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Characteristics

9. ▪ Provider
▪ Everything at the development platform level below
▪ OS patches, updates
▪ Customer
▪ Everything above OS ant the development platform level
▪ Installation and maintenance of any addition applications
▪ Actual data
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Responsibilities

10. ▪Flexibility
▪ Limited offerings of specific platform sets
▪Security
▪ Providers have direct access to all applications and
data
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Challenges

11. ▪Windows Azure
▪Google App Engine
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Examples

12. ▪ Infrastructure as a Service
▪ Provides core services such as computing power,
storage, networking, and operating systems.
▪ Customer builds own environment on top of these
resources
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Characteristics

13. ▪ Provider
▪ Responsible for hypervisor layer (if used) and below
▪ Physical hardware, storage, networking
▪ Customer
▪ Responsible for most of the environment excluding provider responsibilities
▪ OS and application maintenance
▪ Antivirus, threat protection application
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Responsibilities

14. ▪ Costs
▪ Charged for resources usage (processor,
memory); customers that don’t carefully monitor
use may incur high charges
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Challenges

15. ▪ Amazon EC2
▪ Microsoft Azure Virtual Machines
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Examples

16. ▪ Database as a Service (DBaaS)
▪ Desktop as a Service (DaaS)
▪ Storage as a Service (STaaS)
▪ Communication as a Service (CaaS)
▪ Business Process as a Service (BPaaS)
▪ Security as a Service
▪ Integration as a service
▪ Testing as a service
ShashankViswanadha

17. Shashank Viswanadha
Cloud Enthusiast |
Software Engineer
https://www.linkedin.com
/in/viswanadhashashank/
THANK-YOU