The concept of open data is not new, but a formalized definition is relatively new. Open data as a phenomenon denotes that governmental data should be available to anyone with a possibility of redistribution in any form without … See more

At a small level, a business or research organization's policies and strategies towards open data will vary, sometimes greatly. One common strategy employed is the use of a data commons. A data commons is an interoperable software and hardware platform … See more

The goals of the Open Data movement are similar to those of other "Open" movements.
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Several funding bodies that mandate Open Access also mandate Open Data. A good expression of requirements (truncated in places) is given by the Canadian Institutes of Health Research (CIHR):
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Open data can come from any source. This section lists some of the fields that publish (or at least discuss publishing) a large amount of open data.
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Opening government data is only a waypoint on the road to improving education, improving government, and building tools to solve other real-world problems. While … See more

Ideas and definitions
Formally both the definition of Open Data and commons revolve around the concept of shared resources with a low barrier to access. Substantially, digital commons include Open Data in that it includes resources … See more