From PUBLIC DOMAIN PROJECT
The Public Domain Project has following designated communities:
- A global community with access to a web browser, supporting HTML 4.0, finished school education, language level for English: A2
- Music scientist, historians with access to a web browser, supporting HTML 4.0, school education: undergraduate level or higher, basic knowledge of Dublin Core, language level for English: B2
- Search engines, meta archives, automated data analysis programs (bots) who can make queries with HTTP 1.1 and can handle as answer HTML 4.0 or RDF 1.1 (serialized as RDF/XML).