Cloud Computing – Demystifying SaaS, PaaS and IaaS

Is cloud computing the next biggest thing since the Web? The answer is YES. After Mainframe, Personal Computer, Client Server Computing and the Web, this is the next big thing. According to the International Data Corporation (IDC) October 2008 report, projected Cloud IT Spending in 2012 will be $42 Billion; a growth of about 27% from 2008. IDC forecasts that Asia Pacific spending on IT cloud services to grow fourfold, reaching $3.6 billion by 2013. IDC sees that new uses of cloud technology will be introduced to include those markets which cannot yet take advantage of cloud computing.


Cloud computing is broken down into three segments: “software”, “platform” and “infrastructure”.

Each segment serves a different purpose and offers different products to businesses and individuals around the world.

Software as a Service (SaaS) is the service based on the concept of renting software from a service provider rather than buying it yourself. The software is hosted on centralized network servers to make functionality available over the web or intranet. Also known as “software on demand” it is currently the most popular type of cloud computing because of its high flexibility, great services, enhanced scalability and less maintenance. Yahoo mail, Google docs, CRM applications are all instances of SaaS. With a web-based CRM all that employees need to do is register and login to the central system and import any existing customer data. The service provider hosts both the application and the data so the end user is free to use the service from anywhere. SaaS is very effective in lowering the costs of business as it provides the business an access to applications at a cost normally far cheaper than a licensed application fee which is possible due to its monthly fees based revenue model. With SaaS user need not worry about installation or upgrades.

From SaaS, now the industry is moving towards Platform as a Service (PaaS). PaaS offers a development platform for developers. The end users write their own code and the PaaS provider uploads that code and presents it on the web. SalesForce.com’s Force.com is an example of PaaS. PaaS provides services to develop, test, deploy, host and maintain applications in the same integrated development environment. It also provides some level of support for the creation of applications. Thus PaaS offers a faster more cost effective model for application development and delivery. The PaaS provider manages upgrades, patches and other routine system maintenance. PaaS is based on a metering or subscription model so users only pay for what they use. Users take what they need without worrying about the complexity behind the scenes.

There are basically four types of PaaS solutions – social application platforms, raw compute platforms, web application platforms and business application platform. Facebook is a type of social application platform wherein third parties can write new applications that are made available to end users. The CRM solutions provided by the companies are examples of business application platform. Developers can upload and execute their applications on Amazon’s infrastructure which is an example of raw compute platform. While the Google provides APIs to developers to build web applications which is an example of web application platform.

The final segment in the cloud computing is the infrastructure. Infrastructure as a Service (IaaS) is delivery of the computing infrastructure as a fully outsourced service. Some of the companies that provide infrastructure services are Google, IBM, Amazon.com etc. Managed hosting and development environments are the services included in IaaS. The user can buy the infrastructure according to the requirements at any particular point of time instead of buying the infrastructure that might not be used for months. IaaS operates on a “Pay as you go” model ensuring that the users pay for only what they are using. Virtualization enables IaaS providers to offer almost unlimited instances of servers to customers and make cost-effective use of the hosting hardware. IaaS users enjoy access to enterprise grade IT Infrastructure and resources that might be very costly if purchased completely. Thus dynamic scaling, usage based pricing, reduced costs and access to superior IT resources are some of the benefits of IaaS. IaaS is also sometimes referred to as Hardware as a Service (HaaS). An Infrastructure as a Service offering also provides maximum flexibility because just about anything that can be virtualized can be run on these platforms. This is perhaps the biggest benefit of an IaaS environment. For a startup or small business, one of the most difficult things to do is keep capital expenditures under control. By moving your infrastructure to the cloud, you have the ability to scale as if you owned your own hardware and data center.

So we could see that where SaaS offers a complete application as service and PaaS offers the ability to develop an application, IaaS doesn’t care about the application at all. If you have already written a lot of code or have a software package you want to install and run in the cloud, then you’ll be looking for IaaS. If you have no software or want to build something from scratch to solve a problem for which there is no package available or the packages are too expensive or complicated, then you should go for PaaS. The unit of deployment varies from the server to the application and these three types of services offered in cloud computing will have great effect on the nature of IT operations.


Full Source: e2eNetworks

About CloudTweaks

Established in 2009, CloudTweaks is recognized as one of the leading authorities in connected technology information and services.

We embrace and instill thought leadership insights, relevant and timely news related stories, unbiased benchmark reporting as well as offer green/cleantech learning and consultive services around the world.

Our vision is to create awareness and to help find innovative ways to connect our planet in a positive eco-friendly manner.

In the meantime, you may connect with CloudTweaks by following and sharing our resources.

View All Articles

Sorry, comments are closed for this post.

Comic
Using Cloud Technology In The Education Industry

Using Cloud Technology In The Education Industry

Education Tech and the Cloud Arguably one of society’s most important functions, teaching can still seem antiquated at times. Many schools still function similarly to how they did five or 10 years ago, which is surprising considering the amount of technical innovation we’ve seen in the past decade. Education is an industry ripe for innovation…

5% Of Companies Have Embraced The Digital Innovation Fostered By Cloud Computing

5% Of Companies Have Embraced The Digital Innovation Fostered By Cloud Computing

Embracing The Cloud We love the stories of big complacent industry leaders having their positions sledge hammered by nimble cloud-based competitors. Saleforce.com chews up Oracle’s CRM business. Airbnb has a bigger market cap than Marriott. Amazon crushes Walmart (and pretty much every other retailer). We say: “How could they have not seen this coming?” But, more…

What Futuristic Tech Will You See In Your Lifetime?

What Futuristic Tech Will You See In Your Lifetime?

Futuristic Tech The world and what people can do is increasingly being driven by technology. It has already shaped the world we live in, but over the next few decades it is set to shape the world in ways that we can barely imagine. There have already been some great leaps in IoT technology recently,…

The Lighter Side Of The Cloud – Hiding Spots

The Lighter Side Of The Cloud – Hiding Spots

By David Fletcher Please feel free to share our comics via social media networks such as Twitter, Facebook, LinkedIn, Instagram, Pinterest. Clear attribution (Twitter example: via@cloudtweaks) to our original comic sources is greatly appreciated.

Recent Articles - Posted by
Fintech Exploiting AI and Blockchain Technology

Fintech Exploiting AI and Blockchain Technology

AI and Blockchain Technology The field of artificial intelligence (AI) had progressed rapidly in the last ten years, though first recognized in the 1950s. From autonomous motor vehicles to digital personal assistants, the technology is making its way into a variety of industries, enabling better task automation, language processing, and data analytics. But more recently,…

Digital Transformation: Not Just For Large Enterprises Anymore

Digital Transformation: Not Just For Large Enterprises Anymore

Digital Transformation Digital transformation is the acceleration of business activities, processes, and operational models to fully embrace the changes and opportunities of digital technologies. The concept is not new; we’ve been talking about it in one way or another for decades: paperless office, BYOD, user experience, consumerization of IT – all of these were stepping…

Cloud-based GRC Intelligence Supports Better Business Performance

Cloud-based GRC Intelligence Supports Better Business Performance

Cloud-based GRC Intelligence All businesses need a strategy and processes for governance, risk and compliance (GRC). Many still view GRC activity as a burdensome ‘must-do,’ approaching it reactively and managing it with non-specialized tools. GRC is a necessary business endeavor but it can be elevated from a cost drain to a value-add activity. By integrating…

Despite Record Breaches, Secure Third Party Access Still Not An IT Priority

Despite Record Breaches, Secure Third Party Access Still Not An IT Priority

Secure Third Party Access Still Not An IT Priority Research has revealed that third parties cause 63 percent of all data breaches. From HVAC contractors, to IT consultants, to supply chain analysts and beyond, the threats posed by third parties are real and growing. Deloitte, in its Global Survey 2016 of third party risk, reported…

Staying on Top of Your Infrastructure-as-a-Service Security Responsibilities

Staying on Top of Your Infrastructure-as-a-Service Security Responsibilities

Infrastructure-as-a-Service Security It’s no secret many organizations rely on popular cloud providers like Amazon and Microsoft for access to computing infrastructure. The many perks of cloud services, such as the ability to quickly scale resources without the upfront cost of buying physical servers, have helped build a multibillion-dollar cloud industry that continues to grow each…

The Security Gap: What Is Your Core Strength?

The Security Gap: What Is Your Core Strength?

The Security Gap You’re out of your mind if you think blocking access to file sharing services is filling a security gap. You’re out of your mind if you think making people jump through hoops like Citrix and VPNs to get at content is secure. You’re out of your mind if you think putting your…

12 Promising Business Intelligence (BI) Services For Your Company

12 Promising Business Intelligence (BI) Services For Your Company

12 Promising Business Intelligence (BI) Services Business Intelligence (BI) services have recently seen an explosion of innovation and choices for business owners and entrepreneurs. So many choices, in fact, that many companies aren’t sure which business intelligence company to use. To help offer you a solution, we’ve compiled a list of 12 Business Intelligence companies…

Containerization: The Bold Face Of The Cloud In 2016

Containerization: The Bold Face Of The Cloud In 2016

Containerization And The Cloud “Right now, the biggest technology shift in the cloud is a rapid evolution from simple virtual machine (VM) hosting toward containerization’’ says the CTO of Microsoft Azure, Mark Russinovitch, a man who deals with the evolving cloud infrastructure every day. In his words, containerization is “an incredibly efficient, portable, and lightweight…

Cloud Computing Myths That SMBs Should Know

Cloud Computing Myths That SMBs Should Know

Cloud Computing and SMBs Cloud Computing is the hottest issue among IT intellects of Small and Medium Businesses (SMBs). Like any other computer-orientated technology, Cloud Computing has some misconceptions and myths that often kick-start arguments among the two opposing groups: Cloud Supporters and Cloud Opponents. Both of these groups have their own ideology and reasons…

New Report Finds 1 Out Of 3 Sites Are Vulnerable To Malware

New Report Finds 1 Out Of 3 Sites Are Vulnerable To Malware

1 Out Of 3 Sites Are Vulnerable To Malware A new report published this morning by Menlo Security has alarmingly suggested that at least a third of the top 1,000,000 websites in the world are at risk of being infected by malware. While it’s worth prefacing the findings with the fact Menlo used Alexa to…

Infographic: The Evolving Internet of Things

Infographic: The Evolving Internet of Things

Evolving Internet of Things  The Internet of Things, or IoT, a term devised in 1999 by British entrepreneur Kevin Ashton, represents the connection of physical devices, systems and services via the internet, and Gartner and Lucas Blake’s new infographic (below) explores the evolution of the IoT industry, investigating its potential impact across just about every…

Four Reasons Why CIOs Must Transform IT Into ITaaS To Survive

Four Reasons Why CIOs Must Transform IT Into ITaaS To Survive

CIOs Must Transform IT The emergence of the Cloud and its three delivery models of Infrastructure as a Service (IaaS), Software as a Service (SaaS) and Platform as a Service (PaaS) has dramatically impacted and forever changed the delivery of IT services. Cloud services have pierced the veil of IT by challenging traditional method’s dominance…