Résumé
This paper reports a collective reflection led in our team about conceptual graphs benchmarks. We tackle four issues for which agreement should be obtained before benchmarks can be built: what are the fragments of CGs considered? How is inforemation exchanged? What are the problems to be solved? What kind of tools properties are evaluated by the benchmarks? We define a basic building block built upon simple conceptual graphs. Finally we propose to provide a first benchmark adapted from an industrial case study. This benchmark is composed of very simpe structures and should allow to focus on interoperability issues.