Decalog OPAC
Online catalogue for libraries

The OPAC library catalogue is the cornerstone of the library information system. In the past, at a time when the notion of web portal did not even exist, it was the first complementary feature of the ILS.

Today OPAC remains synonymous with documentary research. In OPAC the user will find local or remote catalogue data and access to a user account, as well as digital dematerialised data and online resources. Decalog OPAC connects all these services together.

Intuitive document research


Our search engine integrates the habits acquired by internet users when they consult sites like Google or Wikipedia.

It can generate information noise, in that it will offer a result even if this does not correspond directly to the demand. It creates a hierarchy by placing the most relevant results first. It suggests words as the user types, and corrects spelling mistakes.

It acts as a faceted research engine, filtering and refining the list of results according to the user’s criteria.

Enriched records


Decalog OPAC automatically integrates complementary sources of information into the bibliographic record:

  • videos from INA
  • music from Amazon or MusicBrainz
  • Wikipedia articles
  • biographies, photos of authors etc

Federated searches

recherche fédérée

Our library catalogue interfaces data from different catalogues, ILSs or suppliers of records. Calls to available web services allow access to digital resources, to availability of copies and to the reader account.

An autonomous, easy-to-use system


The information in the catalogue is generated automatically, thanks to the  content of the ILS and the enriched Internet excerpts. A content editor makes it possible to add information and links on the OPAC pages, with no specialised knowledge needed. Thus the library can, for example, show its location on a map, announce future events, or highlight a group of documents.



Decalog OPAC offers various graphic templates to present and organise sections. One template is particularly adapted for visually impaired users (based on recommendations by the French RGAA organisation – rules governing accessibility for visually impaired people).


icone multi-supports

An interface adapted for smartphones and new-generation tablets gives you the possibility of accessing your catalogue whoever you are, wherever you are.

Need information?


2,300 libraries, networks and documentation centres use our solutions.

Institut français de Russie


Cormeilles en Parisis

Val d'huisne