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Farm-scoped features contain functionality that should be available in the entire farm. An example is a web template that should be available for users everywhere to create sites based on it. Web application–scoped features contain functionality that is targeted at a specific web application. An example is a timer job. A site-scoped feature is used to add functionality to specific site collections, such as content types and site columns. A web-scoped feature, as shown in Figure 3-6, could be used to add a custom type of list or library to a...

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Cover of Inside Microsoft SharePoint 2013

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Feature Scope with example