The conflict matrix is one of the most important aspect in exam timetable problem represent hard constraint or a pair of clash exam.
The construction of the conflict matrix help in determines the constraints that no student must attend more one exam at the same time.
Two subject conflict with each other if there are at least one student take both subject.
Researcher has to establish the conflict matrix that helps them to check if two exams conflict with each other or not.
Based on student’s course registration in each semester, researcher can compute the conflict matrix.