IT as a service

Source: Wikipedia, the free encyclopedia.

IT as a service (ITaaS) is an operational model where the

public cloud
providers.

Under an ITaaS model, the IT service provider will place great emphasis on the needs and the outcomes required by the business to improve employee productivity and improving the top line (revenue) and bottom line (profitability). Such services will have a deep industry focus to fully enable industry specific use cases. The benefits to the business sought by using the ITaaS model include the standardization and simplification of products delivered by IT, improved financial transparency and more direct association of costs to consumption, and increased IT operational efficiency resulting from the need to compare the price of internally produced products to those available from external providers. The transformation of an internal IT organization from operating as a cost-center to an ITaaS model is also believed to produce improved levels of business agility for the enterprise as a whole.

Not a cloud service model

According to The NIST Definition of Cloud Computing,[3] there are three service models associated with cloud computing: infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (SaaS). The concept of ITaaS as an operating model is not limited to or dependent on cloud computing. Several proponents of ITaaS as an operating model will insist that the ability for an IT organization to deliver ITaaS is enabled by underlying technology models such as IaaS, PaaS, and SaaS. Vendors who are proponents of the concept of ITaaS as an operating model include EMC,[4] Citrix,[5] and VMware.[6]

ITaaS is not a technology shift - such as a move to increase the use of virtualization. Rather, it is an operational and organizational shift to running IT like a business and optimizing IT production for business consumption. IT organizations that adopt ITaaS are most likely to use the best practices for IT service management as defined in ITIL.

Transformation to IT as a service

Several vendors who are proponents of ITaaS describe the transition of an IT organization to the ITaaS model as a journey which includes the adoption of such models as:

See also

References

  1. ^ "An IT-as-a-Service Handbook: Ten Key Steps on the Journey to ITaaS" (PDF). www.emc.com. June 2012.
  2. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2016-07-06. Retrieved 2016-03-21.{{cite web}}: CS1 maint: archived copy as title (link)
  3. ^ National Institute of Standards and Technology Special Publication 800-145
  4. ^ ITaaS for the CIO
  5. ^ Increase business agility with the cloud and digital workspaces
  6. ^ VMware Start your Journey to the Cloud