GDSS Prototype Model for Supplier Selection at MDM Cooperative

Meri Azmi - Department of Information Technology, Politeknik Negeri Padang, Padang, Indonesia
Yance Sonatha - Department of Information Technology, Politeknik Negeri Padang, Padang, Indonesia
Indri Rahmayuni - Department of Information Technology, Politeknik Negeri Padang, Padang, Indonesia
Kristine Mae Paboreal Dunque - University of Science and Technology of Southern Philippines, Cagayan de Oro City, Philippines
Dwi Sudarno Putra - Faculty of Engineering, Universitas Negeri Padang, Padang, Indonesia

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MDM is a trade cooperative business unit that supplies healthy food options for consumers around the Andalas University campus. So far, the selection of suppliers that provide supply goods to the stores is only based on the trust between both parties, which is the principle of mutual acquaintance and kinship. The problems that may arise from a process like this are the lack of the right supplier, unavailability of goods, relatively higher product prices, late delivery, and low-quality goods. Therefore, we need a GDSS that is capable of overcoming these problems. This GDSS helps in decision-making by determining the right supplier for each of the stores owned by the MDM Cooperative. The methods used are AHP, TOPSIS, and BORDA, involving six criteria and five tested alternatives. The AHP method is used to obtain the weight of each criterion taken from the pairwise comparison matrix. The TOPSIS method is used to determine which suppliers get priority for supply goods. Combining the AHP and TOPSIS methods can reduce the weaknesses of the TOPSIS itself by giving subjective weights. The use of the BORDA method can provide maximum results in selecting this supplier. This GDSS also involves three decision-making bodies: the head of the cooperative, the deputy, and the treasurer. The results of this prototype can show the best alternative selected based on the ranking method.


AHP; BORDA; GDSS; MDM cooperative; TOPSIS.

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