The content of the course is reflected by competencies of which anyone is associated with amount of credit units. Each competency skills are measured by ability levels in the range 0..127. During studying results of every action (e.g. solving tasks) are automatically evaluated and ability levels and forgetting speed levels are adjusted. Decisions (concering grade and crossing the critical threshold of 77) are based on ability levels which are predicted for 16 weeks into the future.
A learner has all the time full picture about ability levels in the form of a competence map , for particular course, sum of credit units for abilities that have reached the critical level 77, the amount of credit units confirmed in class tests and a graph representing achieving final grade as a plot in coordinates credit units vs ability levels.

Grade zones combined from credits and ability levels are shown as an example in Figure. Vertical axis represents ability levels and credit units are on horizontal axis.
Yellow line — shows confirmed states and its right end marks available grade. Black line — shows my current state if all the competences done would be confirmed.

Course IAS0012 , having description in ois is divided into following competences: (1ECU=1000mECU)