stats:role:examiner
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Table of Contents
Examiner Role
Examiners have access to most procedures from the Exam Management and Grades section.
Procedures
Exam and Task Management
createTask(ident uid, ident id, ident taskId, double maxPoints) {
assume exists /account[uid]/examiner[id];
assume exists /exam[id]; # implicitly true in OO implementations
assume not exists /exam[id]/task[taskId];
assume maxPoints >= 0;
insert /exam[id] <task id=[taskId] maxPoints=[maxPoints] />;
}
changeAttributes(ident uid, ident id, ident taskId, double maxPoints) {
assume exists /account[uid]/examiner[id];
assume exists /exam[id]/task[taskId]; # implies the existence of the exam
assume maxPoints >= 0;
assume /exam[id]/participant[x]/result[taskId]/points <= maxPoints;
update /exam[id]/task[taskId]/maxPoints maxPoints;
}
deleteTask(ident uid, ident id, ident taskId) {
assume exists /account[uid]/examiner[id];
assume exists /exam[id]/task[taskId]; # implies the exam exists, which is implicitly true anyway
assume size(/exam[id]/participant/result[taskId]) = 0;
remove /exam[id]/task[taskId];
}
Result Management
addResult(ident uid, ident id, ident studentId, ident taskId, double points) {
assume exists /account[uid]/examiner[id];
assume exists /exam[id]/participant[studentId]; # can also be implicitly true in an OO language
assume exists /exam[id]/task[taskId];
assume not exists /exam[id]/participant[studentId]/result[taskId];
assume points >= 0 && points <= /exam[id]/task[taskId]/maxPoints;
insert /exam[id]/participant[studentId] <result task=[taskId] points=[points] />;
}
removeResult(ident uid, ident id, ident studentId, ident taskId) {
assume exists /account[uid]/examiner[id];
assume exists /exam[id]/participant[studentId]/result[taskId];
# implies the exam, account, student role and task exist by integrity
remove /exam[id]/participant[studentId]/result[taskId];
}
stats/role/examiner.1317248211.txt.gz · Last modified: 2011/09/29 00:16 by Patrick Michel
