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An Integrated Markov Chain–Fuzzy AHP Framework for Workforce Planning and Turnover Driver Prioritization: A Case Study at PT X Rahman Soesilo; Adelia Dwi Valentin; Fitriana Hisnainy Latifah; Salsabila Al Ghifari
Integrasi: Jurnal Ilmiah Teknik Industri Vol 11 No 1 (2026): Integrasi : Jurnal Ilmiah Teknik Industri
Publisher : Program Studi Teknik Industri, Fakultas Teknik, Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/integrasi.v11i1.1150

Abstract

This study aims to develop an integrated workforce planning framework by combining the Markov Chain method and Fuzzy Analytical Hierarchy Process (Fuzzy AHP) at PT X, a manufacturing company with relatively high employee turnover. Historical workforce data from 2020–2023 were used to construct inter-grade transition patterns, while assessments from 15 experts were used to prioritize turnover drivers. The Markov Chain method was applied to project workforce distribution and compare it with workforce requirements based on 2024–2025 production targets. The projection results indicate potential workforce shortages of 28 employees in 2024 and 77 employees in 2025 if transition and turnover patterns remain unchanged. The Fuzzy AHP results show that external factors have the highest weight of 0.845, with individual motivation as the dominant sub-criterion, having a local weight of 0.803 and a global weight of 0.679. These findings suggest that integrating Markov Chain and Fuzzy AHP can support decision-making in estimating workforce needs while determining priority areas for retention strategies. The contribution of this study lies in the integrative application of both methods in a case-based manufacturing workforce planning context.
PENENTUAN LOKASI EXTERNAL WAREHOUSE DENGAN MENGGUNAKAN METODE CENTER OF GRAVITY (STUDI KASUS DI PT. RPZ SURABAYA) Rahman soesilo (Sekolah Tinggi Teknologi Mutu Muhammadiyah); Yahdi Firmansyah (Sekolah Tinggi Teknologi Mutu Muhammadiyah); Sartono (Sekolah Tinggi Teknologi Mutu Muhammadiyah)
Jurnal Manajemen Industri dan Logistik Vol. 4 No. 1 (2020): page 84 - 95
Publisher : Politeknik APP Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30988/jmil.v4i1.372

Abstract

AbstractDetermination of the External Warehouse location has a vital role in the Supply Chain Management system to facilitate the delivery process to consumers who can run smoothly, quickly, and the most optimum distance. The company needs to build a new external warehouse because the current warehouse will be used for new machine installations. Therefore, it was decided to create an alternative external warehouse outside the factory. The purpose of this study is to determine the optimum location of the external warehouse to be made. This study uses the Center of Gravity method to calculate the optimal area that will be considered by the location between the distribution of consumer locations and the number of shipments and also consider the size of the factory that will supply the product. Based on the results of this study, calculations using the Center of Gravity method found that the location of the external warehouse chosen was at (-7.328293, 112.7420916), the settlement area of Jemur Wonosari, Wonocolo, Surabaya City, East Java. By determining the exact location of the external warehouse, the company will benefit from the efficiency of transportation costs.AbstrakPenentuan lokasi gudang eksternal memiliki peran penting dalam sistem Manajemen Rantai Pasokan untuk memfasilitasi proses pengiriman kepada konsumen sehingga proses produk dapat terkirim dengan lancar, cepat dan jarak yang paling optimal. Perusahaan saat ini membutuhkan gudang eksternal karena area gudang yang ada akan digunakan untuk instalasi mesin baru. Oleh karena itu, diputuskan untuk membuat alternatif gudang eksternal di luar pabrik. Tujuan dari penelitian ini adalah untuk menentukan lokasi gudang eksternal yang paling optimal untuk dibuat. Penelitian ini menggunakan metode Center of Gravity untuk menghitung lokasi optimal yang sesuai dengan lokasi antara lokasi konsumen dan jumlah pengiriman dan juga mempertimbangkan lokasi pabrik yang akan memasok produk. Dari hasil penelitian ini, perhitungan menggunakan metode Center of Gravity menemukan bahwa lokasi gudang eksternal yang dipilih berada di (-7.328293, 112.7420916), yaitu daerah Jemur Wonosari, Wonocolo, Kota Surabaya, Jawa Timur. Dengan menentukan lokasi yang tepat dari gudang eksternal, perusahaan akan mendapat manfaat dari efisiensi biaya transportasi.