An Assignment Problem and Its Application in Education Domain: A Review and Potential Path

Table 10

The hard and soft constraints related to SPAP.

Constraint type	Descriptions	Reference (s)
Hard constraints	(i) Preference lists.	Teo and Ho [93]; Abraham et al. [94]; Manlove and O’Malley [95]; Abu El-Atta and Moussa [96]
	(ii) Capacity constraints.	Anwar and Bahaj [97]; Ramli and Bakar [98]; Harper et al. [99]; Abraham et al. [94]; Abu El-Atta and Moussa [96]
	(iii) Every student must be allocated one and only one project.	Anwar and Bahaj [97]
	(iv) A project can be allocated to at most one student.	Anwar and Bahaj [97]
	(v) Total number of cases available must not be more than the total number of students.	Ghazali and Abdul-Rahman [100]
	(vi) Maximum number of students in handling a case.	Ghazali and Abdul-Rahman [100]
	(vii) Maximum number of cases that can be handled by certain students.	Ghazali and Abdul-Rahman [100]
Soft constraints	(i) Assigning a number of students to many cases.	Ghazali and Abdul-Rahman [100]