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Yekti Condro Winursito
Department Of Industrial Engineering, Faculty Of Engineering, Universitas Pembangunan Nasional Veteran Jawa Timur, Surabaya 60294, Indonesia
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Supplier Selection Analysis of Rubber Raw Material Using TOPSIS Method Dira Ernawati; Yekti Condro Winursito; Lutvia Agustin
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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Abstract

Customer satisfaction is the main orientation of a company. To fulfill consumer desires, the company should pay attention to procuring raw materials and choosing the right supplier. Manufacturing companies have to think about how their products have added value compared to other companies. Company XYZ needs to determine the right strategy for purchasing rubber raw materials to increase the efficiency and effectiveness of the company. The method for analyzing the selection of suppliers of rubber raw materials is the TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) method with the weighting of the criteria obtained from the AHP calculation value. The TOPSIS method is used to sort alternative suppliers based on the closest distance from the alternative value to the positive ideal solution and the farthest distance from the perfect negative solution. The data processing results are compared to other suppliers with a value of 0.31088 and the distance of the farthest negative ideal solution from the others with a value of 0.22064. Rank 1: company C, Rank 2: company A, Rank 3: company E, Rank 4: company B, Rank 5: company D.
Development Project Evaluation Tebangi Besar–Kayu Agung Lampung Toll Road Yekti Condro Winursito; Handoyo; Iriani; Dwi Sukma Donoriyanto; Irma Dian; Mega Cattleya Prameswari Annissaa Islami; Rizky Setiawan
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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Abstract

Project management is a process of activities to manage organizational resources owned by the company to achieve certain goals. The Terbangi Besar-Kayu Agung Lampung toll road construction project is a project that must be completed in a short time. This study has a purpose to evaluate the performance of the construction project of the Terbangi Besar-Kayu Agung Lampung toll road using the PERT and CPM methods with a toll road length of 189.2 km (117.6 miles). Based on the results obtained by using these two methods, the project completion time which was originally 238 days can be completed in just 119. There are several alternative proposals. The alternative proposal by adding work shifts that have crashed 32 times has an optimal cost of IDR 39,154,229,627.03 and an optimal time of 119 days. While the alternative of increasing the capacity of the equipment produces an optimal time of 189 days and an optimal cost of IDR 39,205,747,076.44 with the crashing process reaching 12 times of crashing. The Toll Road Development Project Planning is scheduled to have a normal time to work for 238 days at a total cost of IDR 39,349,097,164.38.
Production Machine Effectiveness Analysis Using Overall Equipment Effectiveness (OEE) and Root Cause Analysis Joumil Aidil Saifuddin; Isna Nugraha; Yekti Condro Winursito
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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Abstract

A manufacturing company in production activities requires machinery and equipment. The machine has reliability, namely the opportunity for the machine to operate according to its function in a certain period. Company XYZ is a company located in Sidoarjo and is engaged in manufacturing with the main product being White Crystal Sugar (GKP). Company XYZ has several machines or equipment that operate 24 hours throughout the milling season with a series and parallel system so that the probability of damage to machine components is quite high. One of the machines that are often damaged is the boiler engine. Based on the problems that exist in this company, it is necessary to evaluate the engine performance at the boiler station during the milling period. The methods used in this research are Overall Equipment Effectiveness (OEE) and Root Cause Analysis. The OEE value obtained by the machine at the boiler station at Company XYZ for machines that have a value above the ideal standard of 85%, namely bagasse carrier IV, bagasse carrier III, bagasse carrier II, belt conveyor, reclaimer I, and reclaimer II. Meanwhile for machines that have a value below the ideal standard of 85%, namely boilers KCC of 77.98%, boilers FCB of 81.73%, and bagasse carrier I of 82.37%. This condition shows that production is considered reasonable, but still shows that there is a large room for the company to make developments.
Pengendalian Persediaan Material Menggunakan Metode Continuous Review dengan Sistem (r, Q) Sinta Dewi; Isna Nugraha; Mega Cattleya Prameswari Anissa Islami; Rizqi Novita Sari; Yekti Condro Winursito
JUMINTEN Vol 3 No 2 (2022): Juminten: Jurnal Manajemen Industri dan Teknologi
Publisher : UPN Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (342.921 KB) | DOI: 10.33005/juminten.v3i2.327

Abstract

Persediaan merupakan unsur aktiva perusahaan yang dapat memunculkan biaya dalam pengadaan maupun pengelolaannya sehingga harus di kelola secara efekktif dan efisien. Kelebihan persediaan dapat menaikkan biaya simpan, sedangkan kekurangan persediaan dapat menimbulkan permasalahan dalam proses produksi. PT X merupakan produsen rokok kretek yang permintaannya bersifat fluktuatif. Hal ini membuat perusahaan harus selalu memastikan ketersediaan bahan baku khususnya tembakau untuk kelancaran proses produksinya. Kendala yang dialami PT X dalam persediaan tembakau adalah tingkat pemakaian yang lebih rendah dari tingkat pengadaan tembakau, sehingga perusahaan mengalami kelebihan persediaan tembakau di gudang. Metode Continuous Review dengan Sistem (r,Q) digunakan sebagai pendekatan dalam penyelesaian masalah ini karena metode ini diklaim dapat meminimasi total biaya persediaan, sesuai untuk kondisi dimana tingkat kebutuhan terhadap material yang tinggi dan nilai satuan material yang mahal, serta sesuai untuk persediaan dengan fluktuasi permintaan yang tinggi. Berdasarkan hasil perhitungan total biaya persediaan, metode usulan ini terbukti mampu menghasilkan biaya persediaan yang lebih rendah dan mendapatkan penghematan sebesar Rp. 129.246.893,- atau 28,98% dari total biaya riil persediaan di PT X.
Analisis Kepuasan Pelanggan Terhadap Kualitas Pelayanan di PT. X. Rizqi Novita Sari; Mega Cattleya Prameswari Anissa Islami; Isna Nugraha; Yekti Condro Winursito; Sinta Dewi
JUMINTEN Vol 3 No 2 (2022): Juminten: Jurnal Manajemen Industri dan Teknologi
Publisher : UPN Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (355.196 KB) | DOI: 10.33005/juminten.v3i2.328

Abstract

Kepuasan pelanggan memiliki peran penting dalam mencapai kesuksesan suatu organisasi yang menawarkan produk ataupun layanan jasa. Hal ini dikarenakan kepuasan pelanggan adalah kunci suatu usaha dapat terus berjalan maka dari itu pemilik usaha perlu memenuhi ekspektasi para pelanggan terhadap pelayanan yang diberikan. Sehingga dapat disimpulkan bahwa meraih kepuasan pelanggan adalah dengan memberikan pelayanan yang berkualitas. Penelitian ini bertujuan untuk mengetahui bagaimana tingkat kepuasan pelanggan melalui beberapa atribut kualitas pelayanan di PT. X. Responden pada penelitian ini adalah para pelanggan di PT. X dan ditentukan dengan disproportionate stratified random sampling. Variabel dependen dalam tinjauan ini adalah kepuasan pelanggan sedangkan variabel independen adalah 5 komponen nilai yang terdiri dari responsive, reliability, tangible, assurance dan emphaty. Pengumpulan data dilakukan dengan pengamatan, wawancara serta menyebarkan kuesioner dan diolah dengan menggunakan metode Service Performance (SERVPERF). Hasil dari penelitian ini menyatakan tingkat kepuasan pelanggan terhadap kualitas sebesar 82,185% dan terdapat 3 atribut pelayanan utama yang dapat mempengaruhi kepuasan pelanggan yaitu atribut kemampuan karyawan dalam menjelaskan masalah, kemampuan karyawan dalam memenuhi kebutuhan pelanggan serta atribut kecepatan karyawan dalam pemberian solusi
Analisis Risiko Pada Rantai Pasok di PT X dengan Pendekatan House Of Risk (HOR) Yekti Condro Winursito; Isna Nugraha; Rizqi Novita Sari; Mega Cattleya Prameswari Anissa Islami; Sinta Dewi
JUMINTEN Vol 3 No 2 (2022): Juminten: Jurnal Manajemen Industri dan Teknologi
Publisher : UPN Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (349.882 KB) | DOI: 10.33005/juminten.v3i2.329

Abstract

PT X adalah perusahaan manufaktur yang bergerak dibidang pembuatan produk tas. Terdapat berbagai macam produk tas yang di produksi oleh PT X, yaitu tas ransel, tas jinjing, dan lain sebagainya. Terdapat beberapa permasalahan yang dialami oleh PT X dalam menjalankan bisnisnya seperti terlambatnya pengiriman bahan baku, rusaknya bahan baku dalam penyimpanan, permintaan yang tidak sesuai dengan peramalan, kerusakan pada mesin produksi, dan jumlah produk cacat yang dihasilkan oleh perusahaan. Berdasarkan dari permasalahan yang dialami oleh perusahaan maka dilakukan identifikasi dan analisis risiko pada rantai pasok dengan menggunakan metode HOR. Pada HOR fase satu diperoleh hasil identifikasi bahwa terdapat berbagai macam risiko yang terjadi pada perusahaan yaitu sebanyak 33 kejadian risiko. Dari beberapa kejadian risiko didapatkan 42 penyebab risiko dimana terdapat 13 agen risiko paling dominan yaitu ketergantungan pada satu supplier, terbatasnya alat transportasi pengiriman, sumber daya manusia yang terbatas, kelelahan pekerja, tidak adanya SOP untuk melakukan evaluasi kinerja supplier, tidak adanya job training, keterlambatan informasi yang diperoleh dari konsumen, terjadi breakdown mesin, tidak adanya SOP pengecekan rutin dari perusahaan, pengecekan mesin yang diburu waktu, kerusakan mesin sangat parah, permintaan secara mendadak, dan gangguan selama proses pengiriman.
Profit Maximization Using Simplex Method on ABC Home Industry Yekti Condro Winursito; Munirotul Aina Bin Nur Hidayah; Widya Amelia Krisnanda; Erwan Adi Saputro
Nusantara Science and Technology Proceedings 3rd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2703

Abstract

The home industry ABC daily produces cassava, yams, and tempeh chips. From preliminary observations, information is obtained that enables determining the composition of the number of units for each type of chip produced and determining the selling price of the product per unit, which is carried out based on experience while running the business. Therefore, there is no ideal way to define it. This condition requires a review of the company's profit to determine whether it is optimal or not. This research aims to determine the number of production units of each type of chip to obtain maximum profit and the efficiency of using cost and time resources. Data collection was carried out by observation and interviews. The mathematical model of the research problem is a linear program problem with three variables that can be solved by the simplex method. From the results of the data analysis, it was concluded that to obtain maximum profit. The company had to produce 74 units of cassava chips and 161 units of cassava chips without producing tempeh chips. The maximum profit is IDR 285.387 (previously IDR 247. 000), the production capital is IDR 889.613 (previously IDR 928.000) and all available time has been consumed.
Total Productive Maintenance Analysis Using OEE and FMEA Method at PT. XYZ Phosphoric Acid Factory Joumil Aidil Saifuddin; Isna Nugraha; Yekti Condro Winursito
Nusantara Science and Technology Proceedings 3rd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2711

Abstract

The smooth production process in the company is influenced by several factors, one of which is the machine. Machine maintenance is something that needs to be done by the company because it has an important role in the smooth production process. PT XYZ is a company engaged in the manufacture of fertilizers and chemicals. Phosphoric Acid Plant, production department III A, PT XYZ, in its production process, has 193 machines that are used to process phosphate rock. Based on a survey related to problems that often occur at the Phosphoric Acid Plant, it can be seen that three machines have the highest breakdown time, namely 1st Filter (Fil-2321), 1st Vacuum Pump (C-2323), and Digester (R-2302 B). From these problems, machine maintenance analysis was carried out using Total Productive Maintenance with Overall Equipment Effectiveness and Failure Mode Effect and Analysis methods.
Penerapan Manajemen Risiko Berbasis Aset Sebagai Salah Satu Bentuk Pengamanan Perusahaan pada PT.XYZ Wira Yudha Nuswantoro; Yekti Condro Winursito
MAMEN: Jurnal Manajemen Vol. 2 No. 1 (2023): Januari 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/mamen.v2i1.1209

Abstract

In today's globalized era, a company's competitiveness is largely determined by its environment, both the internal environment and the external environment. The competition certainly involves various assets. Company PT. XYZ is a large company engaged in the procurement of goods in East Java Province, as a large company, of course, it will pay close attention to the assets it owns. Security handling of assets is closely related to the various risks faced. Therefore, the security of these assets is included in risk management. The purpose of this research is to find out how the implementation of asset-based risk management in PT. XYZ. The method used in this study is a literature study which will later be compared with the results obtained. This study also uses a qualitative approach that aims to understand the implementation of risk management at PT. XYZ. The results of this study are the application of risk management that has been carried out by PT. XYZ is going well. The existence of standard SOPs/procedures that already exist and regular evaluations/reviews can minimize the occurrence of risks in business processes that will occur in the future.
Assessment of Motor Vehicle Repair Shop Service Quality Perception Using the SERVPERF Model and Lean Service Mega Cattleya PA Islami; Rizqi Novita Sari; Sinta Dewi; Isna Nugraha; Yekti Condro Winursito; Hafid Syaifullah
Tibuana Vol 6 No 1 (2023): Tibuana
Publisher : UNIPA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/tibuana.6.1.6455.7-11

Abstract

The benchmark for the success of a business or product is to measure the satisfaction of customers who have used or felt the goods or services. The customer's expectations of the function and emotional happiness factors that arise from the use of goods or services are entirely the responsibility of the producer. So that manufacturers need to focus on what attributes must be presented in a product or service to increase customer satisfaction. The decrease in customer interest in providing vehicle service at an automotive company in Sidoarjo is the problem studied in this study, to analyze the level of customer satisfaction and attributes that are priority improvements as recommendations for the company. Data generated from customers is processed and analyzed using the Service Performance (SERVPERF) and Lean Service methods. Based on the results of data processing, it can be concluded that the level of customer satisfaction with service quality is 82.3%, and three service attributes are classified as a top priority and two types of critical waste.
Co-Authors Acyuta Intan Nurardisa Alfian Fakhri Alvin Rizky Syahputra Annisa Marwadelia Dira Ernawati Dira Ernawati Dwi Sukma Donoriyanto Erwan Adi Saputro Friska Aryanti Gilang Ramadhan Hafid Syaifullah Handoyo Handoyo Iriani Iriani Irma Dian Isna Nugraha Jeremiah Batista Hutagaol Joumil Aidil Saifuddin Joumil Aidil Saifuddin Lutvia Agustin M. Rachman Wayulo Mega Cattleya PA Islami Mega Cattleya PA Islami Mega Cattleya Prameswari Anissa Islami Mega Cattleya Prameswari Annissaa Islami Minto Waluo Moch. Annas Hidayatulloh Munirotul Aina Bin Nur Hidayah Mutiara Mei Susanti Nur Rahmawati Rayhan Fatur Maulana Rizky Setiawan Rizqi Novita Sari Rizqi Novita Sari Rizqi Novita Sari Rizqi Novita Sari Rusindiyanto Sinta Dewi Sinta Dewi Widya Amelia Krisnanda Wira Yudha Nuswantoro