When you are absent, you lose class participation points for that day's activity. You may also lose your ability to participate in a meaningful way in an on-going group project. Work is not considered a valid excuse for missing class. You know your schedule when you sign up. The policy for attendance remains the same whether we are scheduled in the classroom, the computer lab, or the library.
Plagiarism is dealt with quite severely.
Consult the department syllabus for further information.