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- Availability as a whole and at no more than a reasonable reproduction cost, preferably downloaded via the Internet without charge.
- Availability in a convenient and modifiable form.
- Its license does not restrict any party from selling or giving away the work.
- Its license does not require a royalty or other fee for sale or distribution.
- Its license allows modifications and derivative works to be distributed under the terms of the original work.
- It is provided in such a form that there are no technological obstacles to its use.
- Requirements for attribution are not onerous.
It suggests that 'work' denotes a piece of knowledge which is being transferred, whether that is; content such as music, films, books; data be it scientific, historical, geographic or otherwise; government and other administrative information.
See Open definition for more information.
The Open Data Institute suggest that when several different organisations publish data relating to a similar field, it is beneficial if they adopt the same format. Ideally, open data should be published in a format defined in an open standard, delivered over a protocol defined in an open standard, and licensed with an open licence.
Publishing open data can:
- Provide greater transparency and encourage participation.
- Make it easier to share and use information.
- Release value in poorly used data.
- Encourage innovation.
- Encourage collaboration.
- Increase use of paid-for products or services.
- Better prediction of demand pipelines.
- Better understanding of the availability of resources.
- Better understanding of how people use buildings.
- The analysis of performance data for buildings in use.
- Analysis of traffic flows.
- Better availability of product information and component models.
- Interoperability of software and exchange of building information models.
- Better creation of Construction Operations Building Information Exchange (COBie) files and linked data.
- Knowledge capture at the end of projects for the benefit of future projects.
- Closer and more straight-forward collaborative working.
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- Big data.
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- Collaborative practices.
- Data from smart energy meters.
- File formats for BIM.
- How data can stop waste.
- Industry Foundation Classes.
- Internet of things.
- Knowledge management.
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- Making the most of big data.
- Native file.
- Open BIM.
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- Open Data Institute.
- Smart buildings.
- Smart cities.
 External references
- The Open Data Institute.
- open definition.
- F.H. Abanda, W. Zhou, J. H. M. Tah and F. Cheung, Exploring the relationships between linked open data and building information modelling. Sustainable Building Conference 2013, Coventry University.