Transaction logs contain much more local detail about usage than the statistical summaries. Both methods will be supplemented with other social scientific methods such as observations, user surveys, etc. Transaction logs have been instrumented into the prototype full text search being developed by Bill Mischo. The transaction logs will be collected only during specified test periods and the statistical summaries will be generated on an ongoing basis. User name, name, contact information and participant ID will be securely stored in one place.
Users sometimes dislike new passwords for each system.
Perhaps use social security number only. Or, id cards can be given to users who have to scan in the id card at the beginning of the session. The card is returned at the end of a session. This would make logging a session relatively easy. This type of registration and administrative information will be sent to the user from the server, via the DL home page in Mosaic.