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All Journal Jurnal Teknologi Industri Pertanian Journal of Innovation and Technology
Maria Ulfah
Department of Industrial Engineering, Faculty of Engineering, Sultan Ageng Tirtayasa University
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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IMPROVEMENT OF PRODUCT QUALITY THROUGH SIX SIGMA AND FUZZY MARKETING MIX APPROACHES Maria Ulfah; Faula Ariana; Dyah Lintang Trenggonowati
Jurnal Teknologi Industri Pertanian Vol. 31 No. 1 (2021): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24961/j.tek.ind.pert.2021.31.1.1

Abstract

According to 2019 annual sales data, the amount of Baros 19-liter bottled water sales experienced 26,304 units drop. The objective of this research was to determine the score-gap of each quality attributes of the product according to Fuzzy Marketing Mix method; to determine the Sigma achievement level on the quality of the product; to determine attributes of product quality that needed to be improved in cartesian diagram; to identify various factors that affect the consumer’s unsatisfaction at the attribute with highest negative score and DPMO; and to provide constructive analysis on product quality improvement according to Fuzzy FMEA method. The Six Sigma approach was done through DMAIC steps, which were define, measure, analyze, improve, and control. The result from the define step, which was mapping of attribute dimensions Marketing Mix 4P was 27 attributes and voice of customer measurement was done with 100 respondents. In measure step, it was found that the biggest negative discrepancy, with the value of -0.4452, was between satisfaction and importance which was found in attribute 23. In measure step, it was also found that the average Sigma score of bottled water in Indonesia is 2.561 with average DPMO of 153,204. In the analyze step, root cause identification of the attribute with highest negative discrepancy, which was delay in product delivery to the consumers (attribute 23), was done. Improvements that can be done to increase the product quality of 19-liter bottled water was to ensure availability of new water bottle for every driver lacking empty bottle. Keywords : DPMO; Fuzzy; Marketing Mix; Quality; Six Sigma
Proposed Improvement on Supply Chain System to Minimize The Bullwhip Effect Phenomenon with Monte Carlo Simulation Approach Dyah Lintang Trenggonowati; Maria Ulfah; Asep Ridwan; Rasie Arthafia
Jurnal Inovasi Teknologi Vol 2 No 2 (2021): October
Publisher : Engineering Forum of Western Indonesian Government Universities Board (Forum Teknik, BKS-PTN Wilayah Barat) Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/jit.v2i2.3854

Abstract

PT XYZ is one of the most company which produce welded steel pipe in Indonesia such as longitudinal and spiral pipes. In order to meet consumer’s demand, this company faced with an obstacle namely the distortion of information in supply chain. Distortion of information from downstream to upstream channel causes the difference between the product demand from consumer to PT XYZ and order of raw materials from PT XYZ to the supplier which is called the bullwhip effect. The objective of this research is to calculate the value of bullwhip effect as well as designing improvements to minimize the bullwhip effect. Based on the research results, obtained the index value of bullwhip effect on longitudinal pipe products is 1.06 and the index value of bullwhip effect on spiral pipe products is 0.80. The improvement design to minimize the phenomenon of bullwhip effect is to build an integrated information system for the customer, manufacturer, and supplier. The method that is used to improve the index value of bullwhip effect is Monte Carlo simulation. Monte Carlo simulation is used to obtain the order number of raw materials in order to approach the number of consumer’s demand. After applying the Monte Carlo simulation, obtained the index value of bullwhip effect on longitudinal pipe product is 1.01 and the index value of bullwhip effect on spiral pipe products is 1.00. It can be concluded that the use of Monte Carlo simulation had been optimizing the index value of bullwhip effect amounted to 4.71% for longitudinal pipe products and 25% for spiral pipe products.
WASTE MINIMISATION ON PRODUCTION PROCESSES OF BOTTLED DRINKING WATER USING GREEN LEAN SIX SIGMA APPROACH Maria Ulfah; Kulsum Kulsum
Jurnal Teknologi Industri Pertanian Vol. 32 No. 1 (2022): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24961/j.tek.ind.pert.2022.32.1.40

Abstract

PT Baros adalah perusahaan yang memproduksi air minum dalam kemasan yang dalam proses produksinya terdapat cacat produk yang diakibatkan adanya waste sehingga terjadi limbah yang dihasilkan dari produk cacat tersebut. Tujuan penelitian ini adalah menentukan waste, menghitung nilai DPMO dan nilai sigma, menentukan penyebab dominan rijek produk, mengusulkan perbaikan pada proses produksi, dan mengusulkan untuk mengurangi potensi penyebab cacat pada produk air minum dalam kemasan cup 240 mL. Pendekatan Green Lean Six Sigma digunakan pada penelitian ini. Hasil penelitian, didapatkam waste tertinggi adalah waste defect. Tingkat sigma yang dicapai PT Baros 4,141 dengan nilai DPMO sebesar 4133,920. Berdasarkan diagram pareto diperoleh Critical to Quality (CTQ) yaitu bocor lid, lid miring, dan cup penyok. Kemudian dengan metode FMEA diketahui faktor penyebab ketiga jenis cacat tersebut. Perbaikan yang diusulkan untuk mengatasi limbah yang dihasilkan antara lain dengan cara perusahaan melakukan kegiatan bersama-sama untuk membersihkan genangan air, serta menjual cup yang sudah tidak terpakai ke pemulung, sedangkan perbaikan proses produksi dengan mengurangi dan memperbaiki kegiatan yang termasuk waste. Mengurangi potensi kegagalan produksi diusulkan dengan cara memperbaiki bucket dan melakukan pemeliharaan, inspeksi bahan baku dari supplier, complain pada supplier, melakukan komunikasi yang baik dengan supplier terkait spesifikasi bahan baku, membuat SOP pemindahan material, meningkatkan pengawasan terhadap kinerja karyawan, dan memberi teguran pada pekerja yang kurang disiplin. Kata kunci : CTQ, DPMO, FMEA, Waste
Co-Authors Asep Ridwan Dyah Lintang Trenggonowati Faula Ariana Kulsum Kulsum Rasie Arthafia