To adapt PSI to CS5604, several changes or additions seemed appropriate. First, given the absence of GTA support, it is necessary for the instructor to play the role of proctor and tutor too, during office hours and during specially scheduled appointments. Second, given space limitations and the current lab situation for Computer Science, it seemed necessary to hold lab sessions in McB 102 on occasion during class time. Third, given the availability of computing resources, it seemed sensible to use electronic forms and electronic mail as much as possible, to encourage additional communication with the instructor and to avoid needless use of paper. Finally, due to space limitations, it was decided that the regular classroom would be used for motivational lectures, which has the added benefit that the suggested schedule of unit completion would be strongly supported by those short presentations.