3. SAAS PAAS IAAS

DIAGRAM TO UNDERSTAND THE DIFFERENCE

  • GREEN – SAAS
  • RED – PAAS
  • BLACK – ON PREMISE
  • ORANGE – IAAS
         PIZZA EXAMPLE
  •  On Premise :-  Prepare everything of your own and eat at your own dining table
  •  IAAS:- Get the dough from supermarket. Then prepare and eat.
  • PAAS:- Delivery to your house.
  • SAAS:- Dine out

         SHARED RESPONSIBILITY MODEL :-   Each of the service comes up with a level of responsibility on your part. This concept is referrted to as the shared responsibility model.

  • Below image- IAAS – you have much control on it.
  • SAAS- you have less control on it.

     PROVIDERS

  •  IAAS:-  Microsoft Azure, AWS, Google compute engine
  • PAAS:- Heroku, Azure logic apps, Amazon elastic beanstalk
  • SAAS:- Office 365, Google G Suite, Salesforce, dropbox (SAAS – the most popular ones..)  

      SERVICES

  • IAAS:- Azure compute(virtual machines), Azure 
  • PAAS:- Azure logic apps, Azure functions, Azure web jobs, Azure automation
  • SAAS:-  Sharepoint, One drive for business, Microsoft Teams, Power platform

    COMMON SCENARIOS

  • IAAS:-
    • Test and developmet
    • Storage and backups
    • High performance computing
    • Big data analysis
  • PAAS
    • Analytics or business intelligence
    • Development framework
  • SAAS:-
    • Gain access to sophisticated applications
    • A majority of SAAS applications are run on directly through web browser and do not require and download or installations on the client side

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