--- doc/homework/datastorage	2006/03/02 20:16:46	1.25
+++ doc/homework/datastorage	2007/03/30 20:09:31	1.26
@@ -114,11 +114,19 @@ resource.partid.responseid.awarddetail
                      # NO_RESPONSE : student submitted no response
                      # MISSING_ANSWER : student submitted some but not
                      #                   all parts of a response
+	 	     # EXTRA_ANSWER : student submitted a vector of values
+                     #                  when a scalar was expected
                      # WANTED_NUMERIC : expected a numeric answer and
                      #                   didn't get one
 		     # SIG_FAIL : incorrect number of Significant Figures
                      # UNIT_FAIL : incorrect unit
                      # UNIT_NOTNEEDED : Submitted a unit when one shouldn't
+                     # UNIT_INVALID_INSTRUCTOR : the unit provided by the 
+                     #            author of the problem is unparasable
+                     # UNIT_INVALID_STUDENT : the unit provided by the 
+                     #            student is unparasable
+                     # UNIT_IRRECONCIBLE : the unit from the student and
+                     #                  the instructor are of different types
                      # NO_UNIT : needed a unit but none was submitted
 		     # BAD_FORMULA : syntax error in submitted formula
                      # INCORRECT : answer was wrong
@@ -136,6 +144,8 @@ resource.partid.responseid.awarddetail
                      # INVALID_FILETYPE : student tried to upload a file
                      #                    that was of an extension that was
                      #                    not specficy allowed 
+		     # COMMA_FAIL : answer requires the use of comma grouping
+                     #              and it wasn't provided or was incorrect
 
 resource.partid.responseid.message (optional) (not yet supported)
 		     # a message that should be shown to the student