Platform as a Service ( PaaS ) and Software as a Service ( SaaS ). Mallory Beaudreau , RVP – Account Management EMEA at Apptio , highlights the key differences .
“ If we think of cloud computing like renting a house , IaaS is like renting your home unfurnished , giving you full flexibility to use it as you wish ,” she explains . “ PaaS , on the other hand , is like renting a partfurnished house , so you still have access to the space ( or infrastructure ) and all the major components , but you have some flexibility to use it as you wish . Lastly , SaaS differs in that it ’ s like renting a holiday apartment ; there are lots of options , but it ’ s completely furnished and set up , so there ’ s less to configure , and you have to operate in a very specific way that fits with that model .”
IaaS offers the highest level of control and flexibility , allowing businesses to install , configure , and manage their own software on the provided infrastructure . PaaS simplifies infrastructure management , focusing on application development , while SaaS delivers fully managed software applications with minimal control over the underlying infrastructure .
“ In SaaS models , subscribers don ’ t manage the underlying infrastructure ,” adds Liron Golan , Head of SaaS Portfolio
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