The DSS creates its own trace file which is a recorded set of ordered events.
What we call a model is the description of the different types of events. As stated before, we don't have to standardize the format of the events, the analysis tool will handle many different types of traces (based on their model). Of course open format is better and XML format with temporal organization is even better.
The pedagogical partners will provide the model of the traces they use, ie mainly what kind of information they study and what is the level of detail they are considering, together with the description of their analysis methods.
For example, the data used for analysing the Digalo traces in a previous project were :

  • The time at which a contribution has been made,
  • The student that made the contribution
  • The location of the contribution in the shared workspace
When using Drew, the tool used (chat / whiteboard / graph tool / etc) is also specified.


Tatiana: Trace Analysis Tool for Interactions ANAlysts. This is the tool developed for the Lead Project, but it will also handle traces from different discussion tools (Coffee, Drew, DrewLite, Digalo, etc).

Drew is a collaborative tool (developped during the previous projects SCALE) that provide trace files of interactions with a web browser interface.
You may test here without any installation.

DrewLite is a simplified version of this tool running on a LAN with a less elaborate environment for managing sessions and traces. A simple trace viewer and converter comes also with DrewLite.