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      Analisis Pemilihan Vendor CO2 Cair Menggunakan DMAIC dan AHP-TOPSIS di PT XYZ

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      Date
      2026
      Author
      Aditama, Azis
      Dewi, Farida Ratna
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      Abstract
      PT XYZ menghadapi permasalahan pengadaan CO2 cair berupa kenaikan biaya pengadaan, keterbatasan pasokan, dan ketergantungan terhadap vendor tertentu yang berdampak pada kontinuitas pasokan serta kelancaran proses produksi. Selain itu, proses evaluasi vendor yang digunakan masih berisiko menimbulkan subjektivitas dalam pengambilan keputusan. Penelitian ini bertujuan menentukan vendor yang paling sesuai serta menyusun strategi perbaikan dan pengendalian pengadaan. Penelitian menggunakan pendekatan DMAIC dengan metode AHP dan TOPSIS. Hasil identifikasi kebutuhan kritis menghasilkan 5 kriteria dan 15 subkriteria pemilihan vendor. Hasil AHP menunjukkan bahwa ketersediaan merupakan kriteria dengan prioritas tertinggi (0,3884), sedangkan kapasitas produksi menjadi subkriteria dengan bobot terbesar (0,1547). Hasil TOPSIS menunjukkan bahwa Vendor 3 merupakan alternatif terbaik dengan nilai preferensi 0,5840. Berdasarkan hasil tersebut, perusahaan menerapkan strategi sumber ganda dengan Vendor 3 sebagai pemasok utama dan Vendor 4 sebagai pemasok pendukung yang menurunkan biaya pengadaan CO2 cair dari Rp1.156.965.000 menjadi Rp416.250.000 per bulan. Penelitian ini menghasilkan usulan sistem pengendalian pengadaan berupa strategi alokasi pasokan, pemantauan kinerja vendor berbasis Indikator Kinerja Vendor, dan penyesuaian strategi vendor secara berkala.
       
      PT XYZ faced liquid CO2 procurement problems in the form of rising procurement costs, supply limitations, and dependence on specific vendors, which affected supply continuity and production activities. In addition, the existing vendor evaluation process was prone to subjectivity in decision making. This study aimed to determine the most suitable vendor and develop procurement improvement and control strategies. The study employed the DMAIC approach using the AHP and TOPSIS methods. The AHP results showed that availability was the highest-priority criterion (0.3884), while production capacity had the highest subcriterion weight (0.1547). The TOPSIS results identified Vendor 3 as the best alternative with a preference value of 0.5840. Based on these findings, the company implemented a dual sourcing strategy by assigning Vendor 3 as the primary supplier and Vendor 4 as the supporting supplier, reducing liquid CO2 procurement costs from IDR 1,156,965,000 to IDR 416,250,000 per month. The study also proposed a procurement control system consisting of supply allocation strategies, vendor performance monitoring based on the Vendor Performance Indicator, and periodic vendor strategy adjustments to sustain procurement improvements.
       
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      http://repository.ipb.ac.id/handle/123456789/174087
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      • UF - Industrial Management [339]

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      Copyright © 2020 Library of IPB University
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      Contact Us | Send Feedback
      Indonesia DSpace Group 
      IPB University Scientific Repository
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      Universitas Jember Digital Repository