The trainee keeps a logbook during the duration of the project, in which he/she notes all decisions and agreements being made at every meeting of the supervisors and trainee. After four months, the trainee gives an interim presentation in the modeling seminar and writes an interim report. This way, project findings are presented for a larger audience of colleague trainees and staff members of the department. The final project is concluded with a conclusive presentation in the modeling seminar. In addition, the trainee completes a final report, which is delivered to the company as one of the main products of the project; in most cases, another deliverable of the project will be (simulation) software.