Here is a list of tasks we are trying to achieve. If you would like to help out, feel free to contact us on the pd-discuss mailing or on the IRC channel #okfn @ irc.oftc.net.


FLOWCHARTS: We currently cover 31 countries, but we would like to cover the whole world. Check out the current status of our Flowcharts, bearing in mind that ‘pending’ Flowcharts are those needing a new coordinator. You can help us by:

  • finding freely available flowcharts for any missing jurisdiction.
  • suggesting people who might be interested in coordinating the making of a new flowchart.
  • implementing one of the missing flowcharts yourself !

CALCULATORS: We currently only have 30 flowcharts implemented into code (covering all countries of the EEA), we want to implement them all. Check out the public domain calculator code for the current implementation of the code. You can help us by:

  • mapping new flowchart into the proper RDF format (see our guidelines for more details)

GUIDELINES: Check out our current guidelines for the making of national flowcharts and their implementation into code. You can help us by:

  • providing guidelines on how produce an accurate flowchart
  • providing documentation on how to map a flowchart into RDF format
  • providing comments or feedback on the current draft of our guidelines.

SPREAD THE WORD: You can help us by:

  • sharing our video to friends and colleagues
  • blogging or tweeting about the project to increase awareness in your community
  • talking to python programmers or Sparql expert and incite them to contribute to our cause !


WEBSITE: Check out the public domain works website. You can help us by implementing additional features such as:

  • better graphical interface
  • browse public domain works by different criteria – e.g. browse by author, country, date, language, by topic, type, genre, etc.
  • display images related to public domain works – e.g. paintings, photographs, etc
  • see multiple copies of public domain works in different formats (e.g. txt, PDF, scanned jpg for books)
  • make arbitrary lists of works (e.g. personal collections)
  • make a better Cache system (the current one is extremely weak 😉 – maybe only cache the PD status rather than caching all the information about the works?
  • develop and document the API to allow other services to interact with pdw.net
  • suggesting ideas to enhance the website

DATABASES: we currently connect only with bibliographica and potentially europeana, but we want to connect with as many databases as possible. You can help us by:

  • identifying the different databases from which we could collect bibliographic metadata
  • collecting additional bibliographic metadata (e.g. from freebase, dbpedia, etc)
  • creating a parser to convert data collected from databases using different formats of metadata into our own RDF format.

METADATA: Expand the catalogue to other kinds of works – books, recordings, films, paintings, photographs, etc by integrating the public domain calculators with other collections of metadata coming from galleries, libraries, archives and museums. You can help us by:

  • suggesting where we can find metadata about works of any type (literary or not)
  • asking digital libraries, repositories or private collectors to share their metadata. This includes e.g. the Internet Archive, the Open Library, Project Gutenberg, Wikimedia Commons, Flickr Commons, etc..
  • creating scrappers for the extraction of metadata for those who do not have a database

LINKS: Provide download links to free digital copies of public domain works (eg. Europeana, Internet Archive, Project Gutenberg, Wikimedia commons, Open Library, etc) You can help us by:

  • suggesting where to find digitized versions of public domain works that can be freely exploited.
  • digitizing works in the public domain and releasing them under an open license.


Check out the last version of the Open Metadata Handbook available on this wiki

LEGAL ASPECTS: You can help us by:

  • enhancing the definition and explanation of what constitutes Open Metadata
  • reviewing & adding to the current list of legal issues in opening up bibliographic metadata
  • reviewing & adding to the current list of technical issues in opening up bibliographic metadata
  • providing a list of case studies concerning the various initiatives which have decided to make bibliographic metadata freely available to the public (such as Europeana, COMET, etc).

TECHNICAL OVERVIEW: You can help us by:

  • reviewing / editing the information concerning the different metadata schemes.
  • providing additional information concerning the last part (“who uses what”)

DATA INTEGRATION: You can help us by:

  • provide more detailled overview as regards the benefits of interoperability between different metadata formats.
  • create a table illustrating the potential compatibility and interoperability issues between these different formats.
  • explain the different manners by which one can integrate metadata records provided by different databases to describe the same works.

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