The name "Argos" refers to having multiple "viewpoints".

Argos is a Web service for managing concurrent categorisation systems. It is used for knowledge management (see Agorae) and qualitative analysis of documents (see Porphyry and LaSuli).

Project management: Aurélien Bénel.

• 2005: Diego Terront prototyped a web service based both on the design of Porphyry RMI servers and on the Hypertopic data model.
• 2006: Chao Zhou specified the Hypertopic protocol as a RESTful web service, and implemented it in Argos.
• 2007-2010: Chao Zhou "industrialized" Argos (multi-database support, Atom feeds, LDAP authentication, server-side and client-side cache support, import/export features...).
• 2010-2011: Aurélien Bénel specified a new version of the Hypertopic protocol allowing data from different services to be confronted. With Chao Zhou, he implemented it in Argos with state-of-the-art technologies to improve performance.