Difference between SaaS , PaaS and IaaS:

SaaS PaaS IaaS
“SaaS” stands for “Software as a Service”. “PaaS” stands for “Platform as a Servic”. “IaaS” stands for “Infrastructure as a Service”.
It provides pre- installed and configured software package as per the requirement. Need to pay for the software package or resource that is used. The resources such as software, hardware, operating system and web environment are provided based on the user requirement. Need to pay for the software package or resource that is used. It provides infrastructure to utilize or install any required operating system, software or any composition...

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Chapter 8, Problem 8.50RQ

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Database Concepts (8th Edition)

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SaaS	PaaS	IaaS
“SaaS” stands for “Software as a Service”.	“PaaS” stands for “Platform as a Servic”.	“IaaS” stands for “Infrastructure as a Service”.
It provides pre- installed and configured software package as per the requirement. Need to pay for the software package or resource that is used.	The resources such as software, hardware, operating system and web environment are provided based on the user requirement. Need to pay for the software package or resource that is used.	It provides infrastructure to utilize or install any required operating system, software or any composition...

Solution Summary: The author explains the difference between SaaS, Paas, and Infrastructure as a Service. Basic setup is provided by the service provider but requires technical knowledge

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