A dean can view marks of another student for purpose GradeSheetEvaluation once. Once he has succesfully been allowed to view the marks, the student must be informed through email, and the permit for viewing marks for that student should be taken away. http://www.w3.org/TR/1999/Rec-xpath-19991116 dean view sub1 sub2 sub3 GradeSheetEvaluation false //context:ResourceContent/db:user/db:email/text() Your marks have been accessed by the Dean for the purpose of Creation of GradeSheet. true