GISMO is a visualization tool for Moodle that obtains tracking data, transforms the data into a form convenient for processing, and generates graphical representations that can be explored and manipulated by course instructors to examine social, cognitive, and behavioral aspects of distance students.
GISMO can be included in any Moodle course as side block. Since it is aimed to help instructors and students, this block will be visible to instructors and, if enabled, also to students (who can see only own data). Each time the Moodle cron jobs runs, GISMO fetches students' data from Moodle logs, and performs some statistical calculations. The lifetime of GISMO data corresponds to the lenght of time of your Moodle logs (configuration "keep logs for in your Moodle administration configs).
A specific documentation for software developer is avaible.