2020-06-30T18:45:00Z
Rony_Sklar - PeerSpot reviewer
Community Manager at PeerSpot (formerly IT Central Station)
  • 4
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What is the difference between IaaS, SaaS, and PaaS?

What are the differences between IaaS, PaaS and SaaS? What are some considerations to take into account when choosing between PaaS, SaaS and IaaS?

5
PeerSpot user
5 Answers
Chetan Woodun - PeerSpot reviewer
Senior Consultant at a tech services company with 11-50 employees
Real User
Top 5
2021-11-26T16:21:34Z
Nov 26, 2021

Make as if you are an IT admin and have to install a CRM app like SalesForce for your users. 


In this case, SaaS (software as a service) can be viewed as accessing the application directly through your web browser through purchasing of a subscription from SalesForce. This would be the top level in the as-a -service family. 


Going a level below, or PaaS ( Platform as a service), this can be viewed as having an operating system like Microsoft Windows server on top of which you install the CRM service for your users. 


Going another level below, you have the IaaS (Infrastructure as a service) or server or virtual server provisioned using VMWare where you have to build the whole OS together with installing the application for your users.


Hope this helps.

Search for a product comparison in Infrastructure as a Service Clouds (IaaS)
AC
Founder & Head Baker at Koosh Bakeshop
User
2021-11-16T13:17:06Z
Nov 16, 2021

Hi, in a nutshell, the level of control over the operation, the price you pay for services and the flexibility.


IaaS: you design it according to your needs and requirements it’s usually the cheapest option, but requires more human power.


PaaS: think of it as an environment for the creation (development) of software or services in which you don’t need to control the underlying infrastructure.


SaaS: it’s end-user software completely managed by the provider. In many cases, you can customize it to your needs. It’s usually more costly but requires less human power and less implementation time. You can be up and running faster at the expense of losing some control over your infrastructure.

I hope that will help.
AJ

DV
Web Developer at NuBean
Real User
Top 10
2021-11-15T20:31:37Z
Nov 15, 2021

Software as a Service (SaaS)


Platform as a Service (PaaS)


Infrastructure as a Service (IaaS)


The main difference between SaaS, PaaS, and IaaS is the level of control that the enterprise has with the cloud stack.

AD
User at a tech services company with 10,001+ employees
User
2020-07-01T11:40:41Z
Jul 1, 2020

IAAS - Infrastructure As A Service

A blank server , nothing is installed . Eg- VmWare which can be used for below service:-
1. Ready to rent
2. Compute
3. Storage
4. Network

PAAS - Platform As A Service


1. For developers - they deploy the code which requires some frameworf i.e apache.
2. We get - ready to use environment
3. Tools to create and deploy applications

SAAS - Sofware As A Service


1. These are ready to use .
2. Gmail , google-drive etc . which are using by end user - The final product.

Muljo Witono - PeerSpot reviewer
CEO and Owner at PT Solusindo Total Teknikatama
Real User
Top 5Leaderboard
2020-07-01T11:41:21Z
Jul 1, 2020

IaaS, provides you infrastructure services. If you want to buy a home, they provide you good location, good and secure land to build a house. To buy IaaS you need make sure it's a secure, stable and reliable service to run an application inside.


PaaS, provides you platforms. If you want to buy a home, they provide you good house, good building, functional and healthy rooms. To buy Paas you need to consider it's a safe, functional and supporting operating system for your applications.


SaaS, provides you application or software services. If you want to buy a home, they provide you rental house complete with its furniture and appliances. You just enter the house and live inside. SaaS must be built on top of good platform and infrastructure. Also, you need to make sure that applications work as you need 

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Why?
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Dovid Gelber - PeerSpot reviewer
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AB
User at Visiting Nurse Service of NY
Jan 8, 2022
Hi community, I'm working at a healthcare company with 1,001-5,000 employees. Please let me know which virtualization software (Oracle VM, Azure VM, Microsoft Hyper-V, Google Compute Engine, VMware, ...) would you recommend for my organization?  Please let me know why would you choose the suggested solution.
2 out of 6 answers
SP
Principal System Engineer at BCBS of MN
Nov 29, 2021
I am not sure what workloads you're planning to run on the virtualized platform - databases, SAP, Hadoop, etc. But VMware vSphere is a great virtual platform to run (mixed of different types of workloads).  It is simple to deploy and maintain.  Do you still have 3 tiers of traditional infrastructure? Network Storage and Compute? Do you plan to implement HCI (Hyper-Converged Infrastructure)? 
Oan-Ali - PeerSpot reviewer
Head of Architecture and DevOps at a financial services firm with 10,001+ employees
Nov 29, 2021
Hi  If you are looking for on-premise VMware would suffice most of your requirements. However,  if you are allowed for Cloud I would recommend to select Microsoft Azure. I have recently locked the on-premise Data Center to Azure for one of the Healthcare providers in Dubai.
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