The advisor, thesis committee and students play different roles during the ca. three years of graduate study. You may have some questions as to what is expected from you and what you can expect from others. In order to help answer these questions, the student representatives have, in conjunction with the Directorate of the Graduate School, set out the most important points with regard to supervision of students.
The guidelines have been ratified by the Department of Physics and Astronomy and can be downloaded here.