This is an old revision of the document!
changeAttributes(ident id, ident taskId, double maxPoints) { assume exists //exams/exam[id]/tasks/task[taskId]; # implies the existence of the exam assume maxPoints >= 0; assume //exams/exam[id]/results/participant[x]/result[taskId]/points < maxPoints; update //exams/exam[id]/tasks/task[taskId]/maxPoints maxPoints; } # roles: examiner[id]