Join us in testing and improving the conformance checkers


pfo_logo_ptraitPREFORMA project works on one of the main challenges that memory institutions (archives, museums, libraries, etc.) are facing nowadays: the long-term preservation of digital data. In particular, the project will offer memory institutions an open source conformance checker that controls if a file complies with standard specifications and with the acceptance criteria of the memory institution, thus giving them full control of the process of conformity testing of files to be created, migrated and ingested into archives.

This software development is carried out in a collaborative environment with memory institutions and experts. We would like to invite you to participate in this process.


How can I participate?

Your memory institution can be involved in the testing phase of the software under development, by checking the process of the conformity tests with your own files and by considering your requirements for the technical iterations.


What would we need from you?

We won’t need much of your time. We need to receive some test files as example of the media files to be checked. PREFORMA is working on conformance checkers for electronic documents, still images and audio-visual records. So you can provide test files in one or more of the following categories and standards:

  • electronic documents (PDF/A),
  • still images (Uncompressed TIFF),
  • audio-visual records (MKV container format, FFV1 video and moving image codecs and LPCM uncompressed audio).

The test files will be treated as confidential and will not be distributed outside the PREFORMA Consortium. A selection of files will be also required as demonstration files to be released and distributed to the wider public for the purposes of demonstrating the PREFORMA conformance checkers. If you can make your files publicly available as demonstrators, do please let us know.


Would you like to be involved in defining the policies to be checked?

Welcome on board! We’re involving memory institutions from many countries that are contributing to the refinement of our open source tools with their expertise, use cases and specific requirements. We would like to hear your opinion on aspects such as:

  1. Does your institution have any defined process/protocol/methodology in validating preservation file formats?
  2. Does your institution have any defined policy with further restrictions and technical specifications regarding the standards of the mentioned file formats?
  3. Which are the problematic cases that you are facing or that you may envisage while checking the correctness and standard compliance of the files that are stored in your archives?


You’ll find further information at the project website:

It will be a pleasure to count on your cooperation with the PREFORMA Project. Your participation will be highlighted on the project website, and your institution could be one of the pioneer institutions to test and implement the new open source tools.


joinusAre you interested in participating in this process?

The PREFORMA team is available to solve any question you should have and help you with this cooperation.

Please contact Claudio Prandoni (, Erwin Verbruggen ( and Magnus Geber ( to confirm your participation.

We’ll be glad to contact you and fix an appointment to facilitate the process.


Visit the PREFORMA Blog

Visit the PREFORMA Website

Leave a Reply

Related Articles

PREFORMA Hands-on Sessions
Now that the PREFORMA prototypes are complete and functionally stable, the PREFORMA project is organising a series of hands-on session and training seminars to explain to the participants what does conformance checking mean, why is file format validation so important in long-term digital preservation, how to create their own policy profiles and how to download, install, configure and use the conformance checker to analyse their files.
Results of the PREFORMA Innovation Workshop
Hosted at the Botanical Garden in Padua, the PREFORMA Innovation Workshop brought together more than 100 attendees interested in digital preservation and cultural heritage to present the open source conformance checkers developed in the project and discuss about the business models that can be built around them. The presentations delivered at the workshop are now available to download on the PREFORMA website.
Registration open for the workshop in Padua
After the two successful events organised last year in Stockholm and in Berlin, the PREFORMA project invites all the members of the digital preservation community to attend the PREFORMA Innovation Workshop which will be held in Padua on 7 March 2017. Register now not to miss this opportunity to meet our developers, share your experiences and learn more about the tools!
DPFManager version 3.1 available to download
DPF Manager has been updated to version Version 3.1. This new version includes new features, improvements and bugfixes. One important change on this release is that we have created two new independent projects for the implementation checker and the policy checker with the aim of improving the project modularity. Donwload the tool on the Open Source Portal ant try it! Don’t forget to send us your feedback to help improving the software!