GradingAssignmentScore RefId StudentPersonalRefId StudentPersonalLocalId TeachingGroupRefId SchoolInfoRefId GradingAssignmentRefId StaffPersonalRefId DateGraded ExpectedScore ScorePoints ScorePercent ScoreLetter ScoreDescription SubscoreList TeacherJudgement MarkInfoRefId AssignmentScoreIteration SIF_Metadata SIF_ExtendedElements