ALIADA (ally in Spanish, female genre) will automatize the publication in the Linked Open Data cloud of open data hosted by different Library or Collection Management Software. ALIADA will support the whole life cycle of reuse of multilingual open data from public bodies, initially the ones in the consortium, providing a usable and open source tool that automatize the selection, publication and linking of datasets in the Linked Data Cloud by the ALIADA users: IT staff, documentalists, curators and librarians in institutions that own datasets managed by library and/or museum management software. ALIADA will be an open source plugin for the library or collection management software, initially for the ones developed by the SMEs in the consortium and already installed in the public bodies, opening the SMEs’ market to new business opportunities. Usability in ALIADA solution will be a key aspect, as the final users will have little or no experience in Linked Data technologies and processes. Librarians are used to manage the collections, they are responsible of, using Library or Collection Management Software that follows norms such as MARC21 and LIDO resulting in high quality annotations. The collection and library software is focused on facilitating the cataloguing fiche entering / consult but, although following a worldwide accepted norm and vocabularies, the databases are proprietary and lock free access. These proprietary solutions hamper the interoperability between different vendors of Library or Collection Management Software and when accessed by external applications that wish to make innovative use of such rich formal data, act as a barrier when opening the data to the world and to innovative SMEs that wish to exploit the possibilities of such information. ALIADA will make possible libraries and museums interoperability, so they can share their collections and offer them to the general public, by means of the linked open data cloud, allowing new interaction experiences for the general public that now will have access to data historically locked in the institutions that host it and as side effect enriching the existing open data, providing new possibilities to innovative SMEs that wants to make use of the published open data and the open source tool to be delivered: ALIADA.