Post'Em was created in 1996 by Adrian German at the IU Bloomington Evaluation Services and Testing, Indiana University Bloomington, using Steve Brenner's cgi-lib.pl library.
Here is a brief overview of the process:
Each instructor must take care that student records not be revealed to anyone other than the student. If you post grades of any kind, be certain to establish for each student a special identification code (or use only a part of their ID number) which only you and the student know. Or you can post the grades via the World Wide Web, if you have set up an on-line gradebook developed by the IU Bloomington Evaluation Services and Testing. (from Handbook for Associate Instructors. (1996). Bloomington, IN: Indiana University COAS and Office for Academic Affairs and Dean of the Faculties.)The on-line gradebook referred to in the preceding quotation is the Post'Em reporting system. It provides the required student privacy, while allowing students twenty-four hour access to their scores. Instructors may update the scores at any time, and the results are available immediately for viewing.
Calculating grades is done most easily in a spreadsheet or a dedicated gradebook program. For example, to use Excel formulas to calculate grades and statistics, see pages 14-19 and 27-29 of Excel for Post'Em.