Cloud Computing For Dummies: SaaS, PaaS, IaaS And All That Was

Cloud Computing For Dummies: SaaS, PaaS, IaaS And All That Was

Cloud Computing For Dummies

There was once a time when you entered “cloud” on Google, and the results you got on the first page were of the cumulo-nimbus and cirrus varieties, in other words, those that dealt with the clouds which form through condensation of atmospheric water vapor. Not so today. We will help educate those who require cloud computing for dummies.

Nowadays, you are more likely to find allusions to “cloud computing” than to garden-variety clouds that bring us rain. And as each generation gets progressively more dependent on the Internet for information, time is not far when a child looking up at the clouds will associate them more with computation than precipitation.

cloud computing for dummies

A lot of terms have become part of the cloud computing lexicon, none more popular than SaaS, PaaS and IaaS. Here’s an attempt to remove the layers of complexity and present them in a language even technophobes can understand.

SaaS

SaaS: Software as a Service (SaaS) is software that is deployed over the Internet, available to the end user as and when wanted. Hence, it’s also known as “software on demand”. Payment can either be as per usage, on a subscription model or even free if advertisement is part of the equation.



While SaaS offers several advantages like accessibility from any location, rapid scalability and bundled maintenance, there may be certain security concerns, especially for users who desire high security and control, as that domain is in the hands of the provider. In fact, that is one of the arguments forwarded by open-source proponent Richard Stallman against SaaS.

SaaS may be considered the oldest and most mature type of cloud computing. Examples include Salesforce.com sales management applications, NetSuite, Google’s Gmail and Cornerstone OnDemand.

PaaS

PaaS: Platform as a Service (PaaS) is a combination of a development platform and a solution stack, delivered as a service on demand. It provides infrastructure on which software developers can build new applications or extend existing ones without the cost and complexity of buying and managing the underlying hardware and software and provisioning hosting capabilities. In other words, it provides the supporting infrastructure to enable the end user develop his own solutions.

In addition to firms’ IT departments who use PaaS to customize their own solutions, its users include independent software vendors (ISVs) as well, those who develop specialized applications for specific purposes. While earlier application development required hardware, an operating system, a database, middleware, Web servers, and other software, with the PaaS model only the knowledge to integrate them is required. The rest is taken care of by the PaaS provider.

Sometimes, PaaS is used to extend the capabilities of applications developed as SaaS. Examples of PaaS include Salesforce.com’s Force.com, Google’s App Engine, and Microsoft’s Azure.

IaaS

IaaS: Infrastructure as a Service (IaaS) delivers computer infrastructure – typically a platform virtualization environment – as a service. This includes servers, software, data-center space and network equipment, available in a single bundle and billed as per usage in a utility computing model.

IaaS is generally used by organizations that have the in-house expertise to manage their IT requirements but don’t have the infrastructure. They then hire the required infrastructure from IaaS providers and load up their libraries, applications, and data, after which they configure them themselves.

A popular use of IaaS is in hosting websites, where the in-house infrastructure is not burdened with this task but left free to manage the business. Amazon’s Elastic Compute Cloud (EC2) is a major example of IaaS. Rackspace’s Mosso and GoGrid’s ServePath are other IaaS offerings.

One important thing to note here: there is considerable overlap between SaaS, PaaS and IaaS, and with the rapid changes in the field, definitions are in a flux. In fact, the same service may be categorized into either of the three depending on who is making the categorization – developer, system administrator or a manager.

By Sourya Biswas

Sorry, comments are closed for this post.

The Conflict Of Net Neutrality And DDoS-Attacks!

The Conflict Of Net Neutrality And DDoS-Attacks!

The Conflict Of Net Neutrality And DDoS-Attacks! So we are all cheering as the FCC last week made the right choice in upholding the principle of net neutrality! For the general public it is a given that an ISP should be allowed to charge for bandwidth and Internet access but never to block or somehow…

The Rise of Fintech and the End of Traditional Banking

The Rise of Fintech and the End of Traditional Banking

The Rise of Fintech Developments in financial technology, or fintech, are changing the way we make payments, with new products gradually transforming how personal and commercial transactions are processed. The pace of these developments has opened up a whole range of opportunities for fintech start-ups and new players; but the arrival of cutting-edge technology has…

Connecting With Customers In The Cloud

Connecting With Customers In The Cloud

Customers in the Cloud Global enterprises in every industry are increasingly turning to cloud-based innovators like Salesforce, ServiceNow, WorkDay and Aria, to handle critical systems like billing, IT services, HCM and CRM. One need look no further than Salesforce’s and Amazon’s most recent earnings report, to see this indeed is not a passing fad, but…

5 Tips For Building A High Growth IT Platform

5 Tips For Building A High Growth IT Platform

5 Tips For Building a High Growth IT Platform Building and maintaining today’s enterprise computing platforms is a lot more challenging than it was in the past. The competitive and fast moving nature of business requires a corporate network capable of meeting a company’s ever changing needs and requirements. For IT, this poses difficult challenges…

3 Considerations To Help Businesses Navigate Cloud Implementation

3 Considerations To Help Businesses Navigate Cloud Implementation

Cloud Implementation Cloud computing technology has improved significantly in the past year, making it an appealing tool for businesses of all sizes. Cloud computing can benefit businesses in many ways, from cutting costs, to increasing business efficiency, to guaranteeing data recovery in case of an accident. In fact, 47 percent of medium and large enterprises…

New Smartphones From Apple, Samsung and HTC Promise To Light Up 2016

New Smartphones From Apple, Samsung and HTC Promise To Light Up 2016

New Smartphones from Apple, Samsung and HTC (Sponsored post courtesy of Verizon Wireless) The launch of the Galaxy S7 Edge at the Mobile World Congress in Barcelona during February was the first shot in a vintage year for mobile phones. The S7 is an incredible piece of hardware, but launches from HTC and Apple later in the…

Featured Sponsored Articles
How Successful Businesses Ensure Quality Team Communication

How Successful Businesses Ensure Quality Team Communication

Quality Team Communication  (Sponsored post courtesy of Hubgets) Successful team communication and collaboration are as vital to project and overall business success as the quality of products and services an organization develops. We rely on a host of business tools to ensure appropriate customer interactions, sound product manufacturing, and smooth back-end operations. However, the interpersonal relationships…

Featured Sponsored Articles
How To Develop A Business Continuity Plan Using Internet Performance Management

How To Develop A Business Continuity Plan Using Internet Performance Management

Internet Performance Management Planning CDN Performance Series Provided By Dyn In our previous post, we laid out the problems of business continuity and Internet Performance Management in today’s online environment.  In this article, we will take a look at some of the ways you can use traffic steering capabilities to execute business continuity planning and…

Featured Sponsored Articles

CloudTweaks is recognized as one of the leading influencers in cloud computing, infosec, big data and the internet of things (IoT) information. Our goal is to continue to build our growing information portal by providing the best in-depth articles, interviews, event listings, whitepapers, infographics and much more.

Sponsor