An introduction to web applications architecture by The Open University

Author:The Open University
Language: eng
Format: azw3, pdf
Publisher: The Open University
Published: 2018-02-28T16:00:00+00:00

2.2 Cloud architecture

SOA is well placed to take advantage of a recent development known as ‘cloud technology’ based on what is often termed ‘the cloud’. Cloud technology has changed how organisations use technology to provide computing services. However, there is a lack of clarity as to what the term will really come to mean. Some definitions restrict the cloud to mean that virtual servers are made available and used over the internet, but more generally the cloud is seen as consisting of a wide range of different resources.

The National Institute of Standards and Technology (NIST, 2013) provided a wider definition of cloud computing:

Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g. networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction.

Cloud computing is the practice of delivering computing services – servers, storage, databases, networking, software, analytics and more – on-demand over the Internet. It is a means of providing computing services as a utility to consumers in the same way as other utilities such as gas and electricity. Companies offering these computing services typically charge for cloud computing services based on usage.

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