Researchers wishing to analyze Technology Enhanced Learning (TEL) situations usually collect interaction traces produced by TEL environments. This paper addresses the issue of sharing, between researchers using TEL environments, of contextualized interaction trace corpora and analysis tools of these corpora. We present a new ontology-based approach called the "proxy approach" to address this issue of sharing. Proxy model; ontology-based approach; sharing; learning interaction trace corpora; trace analysis tools; interoperability; technology enhanced learning