This paper was already announced in 2007, but we announce it again as it has now been published in the Emerald journal. The main purpose of this paper is to present the work carried out by the Food and Agriculture Organization of the United Nations (FAO) in collaboration with Associazione per la documentazione le biblioteche e gli archivi (DBA) in Italy to make web CDS/ISIS-based applications compliant with the OAI-PMH. CDS/ISIS is an Integrated Storage and Information Retrieval System of Unesco, which is widely used especially in Latin America and Africa.