This work is part of the “TEL Environments customization” project studying the use ofactivity traces in the evaluation and customization of mediated learning situations. Analyzingtraces is generally performed using analysis tools developed by researchers specifically fortheir needs. Published research results can generally not be verified or compared, due todifficulties of sharing corpora and analysis tools. The aim of this research work is to provideresearchers using TEL environments in their researches with a platform to share corpora ofcontextualized interaction traces and analyses performed on them, and to analyse thosecorpora using shared analysis and visualization tools. Heterogeneity of traces produced byTEL environments, due to the diversity of learning domains and to analysis needs makes theproposition of a common representation cannot satisfy the various needs of multidisciplinaryresearchers. We propose the “proxy” approach, a participative and incremental solution basedon an ontology which defines three models: a corpus model defining the structure anddescription metadata of the corpus and its contents, a semantic model defining genericconcepts which can be retrieved in shared corpora, and an operational model defining a set ofoperations ensuring interoperability between shared corpora and analysis tools. Based on thisapproach, we propose a platform architecture for sharing traces corpora and analysis toolsallowing researchers to share their own corpora, to access to shared corpora, and to analyzethem.
