The computer aided inventory of the Church Archives of the Diocese of Treviso started in 1996, as part of the project Ecclesiae Venetae, enforced after an agreement between Ministero per i beni e le attività culturali (Ministry for the Cultural Heritage and Activities) and the Veneto Regional Administration. It involved the fonds of the Curia as well as these of the Mensa vescovile (the revenues of the bishop), of the formerly collected in the Archiv of the Curia and other connected and annexed fonds and was extended in 2003 to the precious archive of the Cathedral Chapter.

The entire data base, established according to the international archival standards of description, is a full information system of the whole of historical archive of the Church in Trevio, also accessible in the Historical Archive of the Diocese using printed inventories and by dynamic display and the search support of the software Arcana.