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Humiras Hardi Purba
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IJIEM - Indonesian Journal of Industrial Engineering & Management Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana Kampus Menteng - Gedung Tedja Buana, Floor 4th Jl. Menteng Raya No. 29 Jakarta Pusat- Indonesia Tlp.: +62 21 31935454 Fax: +62 21 31934474
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INDONESIA
Indonesian Journal of Industrial Engineering & Management
Published by Universitas Mercu Buana
ISSN : 26147327     EISSN : 27459063     DOI : https://dx.doi.org/10.22441/ijiem
Core Subject : Science, Engineering,
Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering
The journal aims to advance the theoretical and applied knowledge of this rapidly evolving field, with a special focus on industrial engineering and management, organisation of production processes, management of production knowledge, computer integrated management of production flow, enterprise effectiveness, maintainability and sustainable manufacturing, productivity and organisation, forecasting, modelling and simulation, decision making systems, project management, innovation management and technology transfer, quality engineering and safety at work, supply chain optimization. Indonesian Journal of Industrial Engineering & Management is published under the auspices of Universitas Mercu Buana. The main purpose of Indonesian Journal of Industrial Engineering & Management is to publish the results of cutting-edge research advancing the concepts, theories and implementation of novel solutions in modern manufacturing and services. Papers presenting original research results related to industrial engineering and management education are also welcomed.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 34 Documents
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Search results for , issue "Vol 5, No 1: February 2024" : 34 Documents clear
Optimization of Selection Suppliers for Rice Raw Material Using AHP (Analytical Hierarchy Processes) and TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) Methods in CV Gembira Prasetya, Adi Tulus; Donoriyanto, Dwi Sukma
IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 5, No 1: February 2024
Publisher : Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijiem.v5i1.22366

Abstract

CV Gembira is engaged in the production of Rice Mill with the trademark Osing Rice, and has 3 variants, namely Osing Super, Osing Premium and Osing Gold. Problems CV Gembira one of them is the delay in the delivery of rice raw materials carried out by supplier and also the quality of goods that do not meet the criteria. The AHP method is the preferred method. There are several reasons, namely, AHP provides a hierarchical representation of a problem that is useful in assisting decision making. The selection of the TOPSIS method as an auxiliary method is based on simple logic and has the farthest distance to the negative ideal solution. After performing calculations using the AHP and TOPSIS methods, alternative sequence results are obtained supplier the best that can be used by CV Gembira with a preference value of 0.6249 is owned by UD Bintang Timur.
Modeling Pospay and Multi-Lane Free Flow Integration for Revenue Increase Krisnawanti, Krisnawanti; Fathurahman, Dimas Mukhlis; Haryaman, Adang; Sulaeman, Muhammad Rifqi; Pratama, Rapi Sukma
IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 5, No 1: February 2024
Publisher : Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijiem.v5i1.21883

Abstract

The rise of e-commerce in Indonesia has made digital payment systems increasingly important. One such system is PT. Pos Indonesia’s Pospay application. However, the app is not very popular among users as indicated by its low download numbers and ratings. To address this issue, the potential benefits of combining the Pospay application with Cantas to facilitate toll road transactions were examined. The aim was to increase public awareness of the Pospay application, which would lead to increased revenue. A dynamic system approach was used to develop an optimal strategy for improving Pospay services in the Public Transport sector and integrating it as a toll payment method in the MLFF (Multi-Lane Free Flow) system. The initial dynamic system modeling, using a Causal Loop Diagram (CLD), revealed that service innovation, customer satisfaction, and company revenue are interrelated variables that influence each other. The results of this research can be used as suggestions for companies in developing service innovation strategies.
The Influence of Brand Image, Product Quality, and Price on Purchase Decisions and Repurchase Intention Amalia, Adella; Waluyo, Minto
IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 5, No 1: February 2024
Publisher : Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijiem.v5i1.22011

Abstract

Based on data from one of the best e-commerce in Indonesia, sales of flagship smartphones with a price range of 15-18 million rupiah. This study aims to analyze the effect of brand image, product quality, and price on purchasing decisions and repurchase intentions on iPhone smartphones (studies on users of iPhone 14 in Indonesia). This study uses sampling data. In this research study, 20 indicators were used, and based on the Maximum Likelihood (ML) technique, the number of samples that had to be fulfilled was 5 x n(indicators) = 100 pieces. The hypothesis was tested using the Structural Equation Model (SEM) method using AMOS 22 software. The results of this hypothesis test will be followed by using SOAR analysis to determine marketing strategies. This study shows that brand image has a significant effect on purchasing decisions, price has a significant positive impact on buying decisions, and buying decisions have a significant positive effect on repurchasing intention of the iPhone 14 smartphone. So for the model equation, the relationship between exogenous variables and endogenous variables Y2 = 0.262 X1 + 0.413 X3 + Z4.
Analysis of Marketing Strategies to Achieve Room Occupancy Targets with the SWOT Method at Grand Tamaro Parapat Hotel Malau, Geby Hotmauli; Iriani, Iriani
IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 5, No 1: February 2024
Publisher : Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijiem.v5i1.22413

Abstract

Hotel is one of the service businesses that can support improving the tourism industry through the facilities and infrastructure provided. The marketing strategy carried out by a hotel is very influential on the success of achieving the room occupancy target set by the hotel. Grand Tamaro Hotel is one of the hotels located in a tourism city in Indonesia, namely the city of Parapat, which is experiencing a problem of decreasing room occupancy rates, where from 2020 to 2022 Grand Tamaro Hotel cannot reach the room occupancy target that has been set. This study aims to determine the marketing strategy for achieving room occupancy targets using the SWOT method at the Grand Tamaro Hotel. This research is a quantitative study using purposive sampling technique as a sampling technique. The sample in this study were visitors who had visited the Grand Tamaro Hotel at least once with a total of 80 respondents. The results of this study indicate that the position of the Grand Tamaro Hotel is in quadrant II, namely the position of the diversification strategy with an IFAS score of 3.9 and an EFAS score of 4. This position shows that the Grand Tamaro Hotel faces several threats but has internal strengths. The strategy that must be applied during this condition is to take advantage of strengths to maximize long-term opportunities. Judging from the condition of the hotel, the strategy that can be applied is the S-T strategy which utilizes strength factors to overcome the threats at the Grand Tamaro Hotel.
Material Planning with ABC Classification, Min-Max Method, and Continuous Review System Method at PT XYZ Wardana, Farhan Jezando; Zamzani, Muhammad Imron; Purba, Arini Anestesia
IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 5, No 1: February 2024
Publisher : Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijiem.v5i1.22661

Abstract

PT XYZ is a petrochemical manufacturing company that produces industrial raw materials. This company has a stock of inventory materials in its warehouse. The background of this research is based on the company's need to optimize raw material inventory management to ensure the smooth running of the methanol production process and prevent overstock and stock of material. This study analyzed company SAP data, which showed a high average overstock level in CR1-B2-C01 storage during 2018-2022. Forty materials were overstocked, and 22 materials were out of stock. This shows the urgency to classify priority inventory materials, determine the research results in minimum and maximum quantities of materials, and determine reorder points. The research methods used include the ABC classification to classify inventory priorities, the Min-Max method to calculate the minimum and maximum amount of material, and the Continuous Review System method to determine reorder points and the amount of inventory to be provided. Data on purchases and usage of Parker O-Lube and O-Ring Parker materials in CR1-B2-C01 storage during 2018-2022 are used as a basis for planning material requirements. The research results found that by applying the ABC classification, the Min-Max method, and the Continuous Review System method, the company can optimize the management of CR1-B2-C01 raw materials. In investing in raw materials, companies can reduce the risk of unnecessary costs, minimize damage to goods, and prioritize the optimal use of storage space.
Analysis of Service Quality Level of Financing in Bank BTN Syariah Using the Fuzzy SERVQUAL Method (Case Study: Financing Unit of Bank BTN Syariah Balikpapan Branch) Pambudi, Rifky; Safar Tosungku, La Ode Ahmad; Amelia Pawitra, Theresia
IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 5, No 1: February 2024
Publisher : Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijiem.v5i1.21841

Abstract

Bank Tabungan Negara (BTN) Balikpapan is a financial institution that collects funds from the public and channels them in the form of credit. The objective of this research is to measure the service quality at Bank BTN Syariah Balikpapan using the SERVQUAL, conduct an analysis using the Fuzzy method to obtain single values that represent each attribute of perceptions and expectations, and formulate improvement proposals to enhance the quality of financing services. The highest gap was found in attribute Q1 "Adequate equipment and technology" with a Gap value of 20.66 (137.38%), while the lowest gap in service quality was found in attribute Q21 "Employees who provide personal attention to customers" with a gap value of -48.51 (38.60%). This indicates that attribute Q21 is an important aspect that needs improvement due to the negative gap between customer expectations and perceptions. Furthermore, the overall measurement of service quality in the financing unit yielded an average gap value of -0.77 (Good Enough). Based on the fuzzy Servqual method, several attributes with the lowest negative gaps in the service quality of Bank BTN Syariah were identified. Proposed improvements include conducting Experiential Training to enhance personal relationship approach with customers, adding training with banking knowledge content to improve the financing process, and providing additional rewards to employees who achieve the desired improvements in service.
Defect Analysis of Packaging Bottle Products Using Six Sigma and Kaizen Methods at PT. XYZ Muttaqin, Nashrotul Ummah Al; Aryanny, Enny
IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 5, No 1: February 2024
Publisher : Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijiem.v5i1.22420

Abstract

PT XYZ is a company engaged in manufacturing plastic packaging. The company produces various forms of packaging, one of which is cosmetic bottle packaging. Meanwhile, based on the problems of the production process, various types of product defects such as black spots, leaks, and oil dirt are often found. The company produces the most defective products in 30ml cosmetic bottle products, with a percentage of 3% to 4% of the total production. Based on the above problems, this study aims to determine the level of defects and the sigma value of product quality. In addition, provide suggestions for improvement to reduce the level of product defects at PT XYZ. The methods used are Six sigma and Kaizen. The Six Sigma stages include define, measure, analyze, and improve. The improve stage is assisted by the Kaizen Five M Checklist and Kaizen Five Step Plan. The improve stage is assisted by the Kaizen Five M Checklist and Kaizen Five Step Plan. Based on the results of research with the six sigma method, the percentage of black spot defects is 74%, leaking is 14.1%, and dirty oil is 11.9%. the proposed improvements given are providing 5S training and SOP refreshment, sorting reject products before grinding, cleaning the machine and production area at the end of each shift, replacing blowpin threads and bolts, and others.
Markov Chain Method in Decision Implementation of Preventive Maintenance Scheduling to Reduce Equipment Downtime in PT. ADF Indonesia: Case Study Trimarjoko, Aris; Romadhon, Ari Sulung Kurniawan
IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 5, No 1: February 2024
Publisher : Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijiem.v5i1.24820

Abstract

PT. ADF is a company operating in the shoe manufacturing industry located in Indonesia. PT. ADF has the problem of machine downtime which is currently still relatively high and requires quite a long repair time. The aim of this research is to reduce the high downtime of equipment or machines with the Markov chain method approach used in selecting the next strategy to produce a better probability of implementing scheduled preventive maintenance (PM) compared to Corrective Maintenance (CM), so that implementing a maintenance schedule is chosen to reduce downtime. equipment/machines. This strategy can reduce obstacles or disruption to production schedules. Based on the Pareto diagram, it is known that the largest downtime is caused by damage to the Rotary injection molding machine and molding machine at 80%. After implementing the preventive maintenance scheduling system as intended, the effectiveness of implementing preventive maintenance can be determined by knowing the results of calculating downtime data on Rotary printing machines and printing machines which were previously 2180 minutes/3 months to 729 minutes/3 months or the equivalent of a cost reduction of IDR. 54,735,613.00 to IDR. 18,303,790.00 or the company obtains savings of 66.56%.
Work Posture analysis Using the Rapid Entire Body Method Assessment (REBA) to Reduce the Risk of Injury in Line I Employees Upper Production PT. XYZ Jabbar, Karim Abdul; Suryadi, Akmal
IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 5, No 1: February 2024
Publisher : Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijiem.v5i1.22934

Abstract

This research aim to solve the problem of ergonomic standart in the process of making an upper shoes by implementing Rapid Entire Body Assessment (REBA). This method is suitable to solve job body posture problem of the worker of PT XYZ based in Sidoarjo. PT XYZ is an international company and one of the expantion company from Denmark, they produce high quality shoes with more than 7000 workers. There are several plaint from the worker that they had a featigue in some part of te body. REBA assess the score from the top of the body to the bottom of the body and giving report are report of the posture risk. By using this method, the solution can be found with giving the right posture of the worker body while working their duty. The result of the research are confirmed to reduce the risk of musculoskeletal disorders (MSDs) the posture need an improvement by changing the moves of trunk, upper arm, and wrist. Reba score are known in 6 and it’s increasing to 3 after the improvement.
A Taguchi-Simplex Algorithm for the Optimization of Tapped Density for Particulate Orange Peels Ajibade, Oluwaseyi Ayodele; Agunsoye, Johnson Olumuyiwa; Oke, Sunday Ayoola
IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 5, No 1: February 2024
Publisher : Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijiem.v5i1.22412

Abstract

In the composite industry, green fillers transported between locations face undesirable impacts of road surface on powder loads but few methods accurately account for this challenge in tapped density measurements. The purpose of this paper is to introduce a methodology to help composite development engineers manage the transportation of orange particles in transit, on vehicles as they move from the particle production locations to the production process locations. In this paper, the Taguchi method-simplex algorithm (TM-SA) method is proposed for the tapped density optimization of orange peel particulates (OPPs). OPPs of 0.425 and 0.600mm for automobile applications are optimized using experimental data. Managing the transportation process of orange peel particulates and their outcomes needs managing substantial tapped density information. Taguchi method was integrated into the objective function of a simplex algorithm. The tapped density parameters were optimized at the lowest parametric values and the constraints were formulated. It was revealed that for the 0.425mm orange peel particulates, the optimal values and volumetric values were lower by 0.09% and lower by 4.06%, respectively. For the 0.600mm, the optimal values and volumetric values were higher by 0.005% and 6.91%, respectively, when the current method was compared with the literature values from the grey relational analysis. The results at optimality support the effectiveness of the method and were validated by the grey relational analysis results from the literature. The utility of our research is to help green filler powder manufacturers assure cost-effective decisions and logistics delivery optimization.

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