Cloud - Everything As a Service (EaaS)
Welcome to the "Everything as a Service" Economy. Cloud computing is changing the way IT serves the enterprise. Today, nearly any type of hardware, software, IT process or business process can be offered as a cloud-based service. This has created an as a service economy that empowers both IT and the business. The benefits to the enterprise include greater agility, higher levels of innovation, faster responsiveness to market changes, and a new, improved ability to contain costs and reduce the need for capital.
'Everything aaS' Economy
Cloud-based services today are available in several varieties, giving CIOs and their enterprises a wide range of choices and options. These include Software as a Service (SaaS), Computing as a Service (CaaS), Platform as a Service (PaaS), Desktop as a Service (DaaS), Infrastructure as a Service (IaaS), and Business Process as a Service (BPaaS). While these as-a-service approaches vary in significant ways, they all share the ability to provide enterprises with greater flexibility at lower costs.
But choosing the best cloud solution can be complicated. CIOs today must decide which of three main approaches to take:
- Private cloud: Offered on an enterprise’s private network, this approach provides the highest levels of security and control. But it also requires the highest levels of staffing and equipment, which can limit or even cancel the cost savings.
- Public cloud: Typically offered by third parties, this approach can help an enterprise reduce its need for capital, staff, hardware, software and maintenance. Public clouds can also provide an enterprise with added flexibility and speed. The tradeoffs include less control and, possibly, lower levels of security and compliance.
- Hybrid cloud: This approach combines the strengths of public and private clouds. For example, in a setup known as “cloudbursting,” a retailer that normally runs its applications on a private cloud could rely on a third-party public cloud during periods of high activity, such as the end-of-year holiday season.