At a high level, cloud computing consists of three models, software-as-a-service (SaaS), platform-as-a-service (PaaS) and infrastructure-as-a-service (IaaS). Choosing the right option for your business means understanding the differences between the three and how each can be tailored to support your specific needs:
- SaaS: Currently the largest segment of the cloud market, SaaS is a software licensing and delivery model based on a subscription basis, where applications are centrally hosted and accessed via a web browser. Sometimes referred to as on-demand software, SaaS removes the need to install and run on-premises software on desktops and servers, which saves on maintenance, upgrade and support costs. An example of SaaS that most are familiar with is Salesforce.com.
- PaaS: At a lower functioning level than SaaS, PaaS typically provides a platform on which software can be developed and deployed. PaaS providers give clients an environment in which the operating system and servers, as well as the underlying network infrastructure, are cared for, leaving users free to focus on their work. PaaS provides a framework – complete with toolsets, workflows, automation, etc. – that developers can use to develop or customize web-facing applications. The framework runs on the CSP’s hardware and software, enabling developers to quickly and cost-effectively develop, test and deploy a variety of applications. Examples of PaaS providers include Heroku, Google App Engine and Red Hat’s OpenShift.
- IaaS: Pegged by Gartner for the fastest growth in the coming year, IaaS cloud computing can be thought of almost as a remote data center on demand and is composed of the fundamental building blocks for cloud services. The CSP provides the virtual or bare metal hardware, storage, networking and security services, enabling customers to quickly scale their computing power as needed without incurring the delays and costs associated with purchasing their own hardware, software, heating, cooling, etc. A well-known example of IaaS is Microsoft Azure.
Few organizations today use just one model and are employing hybrid models with a mix of private and public cloud infrastructures. The cloud deployment decision differs due to a variety of factors, from application sensitivity and business model, to workload volatility and more.
To sort through the myriad of options in today's "as-a-service" landscape, a managed service provider who understands the entire scope of your needs can help you not only decide the best cloud platform, or platforms, for your organization but also make it easy to evolve as your IT priorities fluctuate. OneNeck IT Solutions, is a managed service and cloud provider who understands that the cloud is not a one-size-fits-all solution for all customers or all application requirements.
We offer flexibility to choose the solution that meets your cloud demands by providing diverse, customizable solutions tailored to your specific needs. We can help evaluate your requirements and make the cloud or on-premises based recommendations that make sense for your organization – not ours. With our free Cloud Consumption Assessment, OneNeck has designed a way to get you started down the path to the Right Application, on the Right Cloud, at the Right Time.