It may seems relevant for succes that a bachelor or a master degree student understand what it takes to be graduated. Common graduation requirements include several tests on different topics in order to complete all credit hours. Every program and institution can differ in the minimum grade that validates a test, as well as in the aggregation process of the various grades. To model such differences in the process, we introduce the university rule defined as follows: (i) Students must pass several topics; (ii) There are several periods (eg. semesters, years); (iii) For each period and each topic, there is a test; (iv) The result of the test on each topic and each period is a grade; (v) A decision process maps the result of each test to a final result indicating whether the student has obtained the required graduation or not. Understanding the process is a first step for the succes of a student. A second step consists in knowing the importance of a given topic within the final result. Given the university rule, we present tools that evaluate the importance of a given topic. In particular, we extend to the university rule, the two well-known importance (power) indices of Shapley-Shubik (Shapley and Shubik [1954]) and Banzhaf (Banzhaf [1965]).