30 points: Building
- 30 points: Makefile allows successful build
10 points: Read/Write Isolation
- 10 points: Properly isolate writing/reading between concurrent processes
260 points: System Calls
- For all these: reasonable error checking/handling, in addition to correct normal behavior.
- 80 points: Minor
  - 10 points: close
  - 10 points: getpagesize
  - 10 points: getdtablesize
  - 10 points: ioctl
  - 10 points: fstat
  - 10 points: sbrk
  - 10 points: getpid
  - 10 points: getppid
- 180 points: Major
  - 50 points: fork
    - 25 points: Partically correct fork implementation
  - 50 points: wait
    - 25 points: Partically correct wait implementation
  - 50 points: execve
    - 25 points: Partically correct execve implementation
  - 30 points: exit
90 points: Clean up
20 points: Clean up orphans correctly
20 points: Clean up zombies correctly
40 points: Manage process memory correctly
10 points: Assign and free PIDs correctly
10 points: Time Slicing