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IDC Worldwide IT Cloud Services Taxonomy, 2012http://goo.gl/Que0E

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INDUSTRY DEVELOPMENTS AND MODELS IDC's Worldwide IT Cloud Services Taxonomy, 2012Frank Gens Richard L. Villars Tim Grieser Laura DuBois Gard Little Rona Shuchat Chris Morris Margaret Adam Chris Ingle Nigel Wallis Mette Ahorlu Robert P. Mahowald Stephen D. Drake Mary Johnston Turner Matthew Eastwood Melanie Posey Satoshi Matsumoto Vladimr Kroa David Bradshaw Ricardo Villate Stephen Minton

www.idc.com

F.508.935.4015

IDC OPINIONThe IT cloud services market continues to grow and evolve at an astonishing rate. New offerings come to market regularly, often defining new functional segments and new deployment options. This study updates IDC's cloud services definition and deployment models. It also updates IDC's taxonomy of the IT cloud services market. According to IDC's definition, a cloud service must be a shared, multitenant service; packaged as an integrated solution; available through self-service; provide elastic resource provisioning; feature pricing that scales up and down with usage; leverage standard networks and clients; and be "open" for integration and enhancement through published application programming interfaces (APIs). IDC defines a variety of emerging cloud service deployment models, including public cloud services, and an expanding range of private cloud service deployment options, including dedicated private cloud (DPC) and virtual private cloud (VPC) services. In this study, we share IDC's high-level functional taxonomy of IT cloud services, which we have enhanced and extended in the following ways: U.S. National Institute of Standards and Technology's (NIST's) three broad cloud service categories software as a service (SaaS), platform as a service (PaaS), and infrastructure as a service (IaaS) have been added as a new top layer to IDC's IT cloud services taxonomy. IDC's previous IT cloud services taxonomy has been "plugged in" below the NIST model, providing clients with much deeper levels of cloud services market definitions heretofore lacking in the simple NIST framework. Network and client functionalities, delivered as cloud services, have been added to the taxonomy. IDC's application development and deployment (AD&D) cloud services segment has been renamed (as PaaS) and revamped to reflect how cloud services are changing that important part of the market. A new PaaS category cloud application platforms, focusing on the strategic integrated PaaS segment that includes Microsoft's Azure, salesforce.com's Force.com, and other platforms has been defined.

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Filing Information: March 2012, IDC #233396, Volume: 1 Cloud Services: Global Overview: Industry Developments and Models

TABLE OF CONTENTSP In This Study 1

Methodology ............................................................................................................................................. 1 S i t u a t i o n O ve r vi ew 1

What's New in IDC's IT Cloud Services Taxonomy? ................................................................................ 2 What Are "Cloud Services?" ..................................................................................................................... 2 Eight Cloud Services Key Attributes .................................................................................................. 3 Comparison with NIST's Cloud Computing Definition........................................................................ 7 Cloud Services Deployment Models ......................................................................................................... 8 More Detail on Public and Private Cloud Service Deployment Models.............................................. 8 Private Cloud Services Key Attributes (Points of Note) ..................................................................... 10 IT Cloud Services Taxonomy: Key IT Cloud Services Categories ............................................................ 12 Our Starting Point for Cloud Services Segmentation IDC's Functional IT Market Taxonomy ....... 12 Important Changes for IDC's 2012 IT Cloud Services Taxonomy ..................................................... 13 Definitions of the IT Cloud Services Segments.................................................................................. 16 Future Outlook Essential Guidance Learn More 17 17 19

Related Research ..................................................................................................................................... 19

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LIST OF TABLESP 1 2 IDC's New IT Cloud Services Taxonomy, 2012 ........................................................................... 14 IDC's Old IT Cloud Services Taxonomy, 20082011 ................................................................... 14

2012 IDC

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LIST OF FIGURESP 1 2 Cloud Services Key Attributes...................................................................................................... 3 Cloud Services Deployment Models ............................................................................................ 10

#233396

2012 IDC

IN THIS STUDYThe IT cloud services market continues to grow and evolve at an astonishing rate. New offerings come to market regularly, often defining new functional segments and new deployment options. This study updates IDC's definition of cloud services and the various cloud services deployment models. It also updates and expands IDC's taxonomy of the IT cloud services market.

MethodologyIDC developed its first cloud services definition in 2008 (blogs.idc.com/ie/?p=190), and while we have continued to refine and evolve our definitions (blogs.idc.com/ie/?p=422) you'll notice that our core definitional and taxonomic principles have remained the same. For this update to our cloud services definitions and taxonomy, we held extensive discussions among IDC's global offices, sharing the latest observations and analysis regarding cloud service providers' (cloud SPs') latest offerings and business/service models, relevant technology/product trends, the activities of standards groups, and IT customers' buying and usage trends. Because market definitions and taxonomies should be crafted to be as durable as possible, while still being adaptable to important market changes, IDC's analyst team invested many person-hours exploring what the IT and cloud markets will look like over the next 510 years rather than creating a simple map of the current market.

SITUATION OVERVIEWThe cloud services market continues to expand and evolve. Vendors with a great variety of legacy products and services, management strategies, and experience are entering the cloud services market, disrupting, diversifying and, sometimes, complicating formerly well-understood market dynamics. In addition, users' understanding and expectations about cloud services vary widely and are influenced both by their growing cloud experiences on the consumer Web and by workplace IT consumption habits built over the past 40 years. To improve our market analysis and forecasting and help the market move toward a common framework, IDC continues to evolve our IT market taxonomies on a regular basis. There are substantial changes in the cloud services taxonomy from the previous edition published in Worldwide and Regional Public IT Cloud Services 2011 2015 Forecast (IDC #228485, June 2011).

2012 IDC

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What's New in IDC's IT Cloud Services Taxonomy?IDC's most recent IT cloud services definitions and taxonomy information were published in Worldwide and Regional Public IT Cloud Services 20112015 Forecast (IDC #228485, June 2011). In this more comprehensive taxonomy document, there are a number of enhancements to the definitions and taxonomy. Among these are: Adoption of the three NIST IT cloud services categories SaaS, PaaS, and IaaS as the top level of our taxonomy. The addition of a new top level in IDC's IT cloud services taxonomy is based on the widely used U.S. National Institute of Standards and Technology cloud services categories: infrastructure as a service, platform as a service, and software as a service. We've created formal alignment of IDC's primary IT cloud services markets (e.g., applications, application development and deployment, system infrastructure software [SIS], servers, and basic storage) with these three top-level NIST categories. Expanded primary market categories. This new taxonomy expands the number of primary IT cloud services beyond the original five, adding networks (network functionality delivered as cloud services) and clients. "Other" SaaS, PaaS, and IaaS categories. To accommodate new and compound solutions, we have added three "other" categories at the IaaS, PaaS, and SaaS levels. The new categories accommodate new and/or complex cloud services offerings beyond those that are cloud versions of simple primary market product offerings. Expanded cloud deployment models. In our previous taxonomy, we defined just three (public, private, and hybrid) cloud deployment models. In this study, we expand our definitions to include several different private cloud deployment models. More detailed explanations of these changes are presented in the IT Cloud Services Taxonomy: Key Cloud Services Categories section of this document.

What Are "Cloud Services?"Cloud services are fundamentally about an alternative solution composition, delivery, and consumption model one that can be applied to IT industry offerings but also, much more broadly, to offerings from many other industries, including entertainment, energy, financial services, health, manufacturing, retail, and transportation as well as the government and education sectors. The cloud model goes well beyond prior online delivery appr

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