Classification of screening processes according to Hwang and Yoon (1981)
| Conjunctive screening | A supplier can enter the shortlist if and only if it satisfies all the set requirements |
| Disjunctive screening | A supplier can enter the shortlist if it satisfies at least one of the set requirements, even if they fall short on others |
| Lexicographical screening | Requirements are ranked in order of importance, suppliers are first evaluated on the most important and only those satisfying them, pass to the next evaluation stage and so on until a desired number of suppliers is obtained |
| Conjunctive screening | A supplier can enter the shortlist if and only if it satisfies all the set requirements |
| Disjunctive screening | A supplier can enter the shortlist if it satisfies at least one of the set requirements, even if they fall short on others |
| Lexicographical screening | Requirements are ranked in order of importance, suppliers are first evaluated on the most important and only those satisfying them, pass to the next evaluation stage and so on until a desired number of suppliers is obtained |
Source(s): Created by authors
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