The development of mzSpecLib and mzPAF started in 2019. Since then, it has been an open process via conference calls in addition to discussions at the annual PSI meetings and smaller workshops. Both technical specification documents were submitted to the PSI Document Process 21 for review, during which time external anonymous reviewers not involved in the development process provided their feedback. The document was also made available for comments by the public, enabling broad input on the specifications.