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Open Knowledge Definition
The Open Definition sets out principles to define ‘openness’ in relation to content and data – that’s any kind of material or data ‘from sonnets to statistics, genes to geodata’. The definition can be summed up in the statement that “A piece of content or data is open if anyone is free to use, reuse, and redistribute it — subject only, at most, to the requirement to attribute and share-alike.” . In addition this site hosts the Open Software Service Definition (OSSD) which defines ‘openness’ in relation to online (software) services. It can be summed up in the statement that “A service is open if its source code is Free/Open Source Software and non-personal data is open as in the Open Knowledge Definition (OKD).” . We are currently working on a series of additional guidance documents for material in specific domains – such as open data in science and open government data.Dapper is now part of Yahoo!, powering Yahoo!’s innovative and results-driven Smart Ads. Yahoo!’s power to provide Science + Art + Scale and Dapper’s ability to drive greater performance in display advertising deliver personalized ads that are relevant to the audience that matters to you. Learn how Smart Ads can advance your business .

