<p>This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</p> <p>The Proteomics Standards Initiative (PSI) aims to define community standards for data representation in proteomics and to facilitate data comparison, exchange
and verification. Initially the fields of protein–protein interactions (PPI) and mass
spectroscopy have been targeted and the inaugural meeting of the PSI addressed the
questions of data storage and exchange in both of these areas. The PPI group rapidly
reached consensus as to the minimum requirements for a data exchange model; an
XML draft is now being produced. The mass spectroscopy group have achieved major
advances in the definition of a required data model and working groups are currently
taking these discussions further. A further meeting is planned in January 2003 to
advance both these projects.</p>
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Comp Funct Genomics. 2003 Feb; 4(1):16-19