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OPERATION EXCELLENCE: Journal of Applied Industrial Engineering
Published by Universitas Mercu Buana
ISSN : 2085429     EISSN : 26545799     DOI : 10.22441/oe
Core Subject : Science,
Decision Sciences, Operations Research & Management
The aim of Operations Excellence: Journal of Applied Industrial Engineering (OE Journal) is to publish theoretical and empirical articles that are aimed to contrast and extend existing theories, and build new theories that contribute to advance our understanding of phenomena related with industrial engineering and industrial management in organizations, from the perspectives of Quality Engineering, Productivity Improvement, Logistic & Distribution, Supply Chain Management, Performance Management & Improvement System, Modelling, Operations Management, Optimization, Green Manufacturing.
Arjuna Subject : -
Articles 317 Documents
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Product design of upper sandal fabric cutting machine using ergonomic function deployment method Wibisono, Aldino; Tranggono, Tranggono
Operations Excellence: Journal of Applied Industrial Engineering Vol. 15, No. 2, (2023): OE July 2023
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/oe.2023.v15.i2.084

Abstract

In the production process, the upper sandal cutting of KUB Mampu Jaya is still done manually using scissors one by one for each mold. The purpose of this research is to create an ergonomic upper sandal cutting machine. The method used in this research is Ergonomic Function Deployment (EFD). Direct data collection involved observing the production stages and activities carried out by workers through interviews and surveys. The results show that this sandal upper cutting machine has been designed by adjusting user needs so as to minimize production time and the cutting process becomes more efficient. Previously, the production or cutting time took 2 minutes per one upper sandal mold, but with this new cutting machine, the cutting process only takes 1 minute per upper sandal mold, saving up to 1 minute. The results of this study will provide a better solution in designing a sandal upper fabric cutting machine that prioritizes ergonomic aspects and can reduce musculoskeletal complaints.  
Analysis of factors influencing customer satisfaction dkriuk fried chicken serua using PLS-SEM Mahardika, Dikki; Surjasa, Dadang; Safitri, Dian Mardi
Operations Excellence: Journal of Applied Industrial Engineering Vol. 15, No. 2, (2023): OE July 2023
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/oe.2023.v15.i2.081

Abstract

One of the food menus that can be eaten at every meal is fried chicken. As the fried chicken franchise culinary business grows in the Jabodetabek area, trade competition to win the hearts of consumers is getting higher. Dkriuk Fried Chicken (DFC) Serua is a fried chicken culinary business. Understanding consumer needs is very important because a culinary business needs regular customers to survive. The decrease in the chicken frying business and the existence of similar business competition around the location need to be researched. This study aimed to determine the effect of price, product, service and relationship management with customers on customer satisfaction. The analysis was carried out partially on each variable. This study conducted a correlation test between variables using the PLS-SEM approach using SmartPLS version 3. Based on the data obtained by distributing questionnaires to 76 DFC Serua consumers who came directly, the analysis of the relationship between variables was obtained. Product variables have a significant influence on customer satisfaction. Price has a significant influence on customer satisfaction. Service has no significant effect on customer satisfaction. Relationship management with customers has no significant effect on customer satisfaction.
Models of supply chain management in the efforts to develop the banyumasan batik industry Susanti, Marcely; Nurlaili, Nurlaili; Darmawan, Rachmat
Operations Excellence: Journal of Applied Industrial Engineering Vol. 15, No. 2, (2023): OE July 2023
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/oe.2023.v15.i2.086

Abstract

Inventory of raw materials is one of the crucial problems in the company. Errors in determining the size of raw material inventory is very influential for the smooth production of the company. PT Semen Bosowa Maros is a private company that focuses on cement production. This study aims to avoid excess and shortage of raw materials by calculating the amount of raw material inventory at PT Semen Bosowa Maros. This study uses the Min-Max Stock method. The research data was obtained from the company's annual data with related parties. The results of the study obtained safety stock values of Silica Sand 166.46 ton’s, Gypsum 1482.96 ton’s, Fly Ash 33.71 ton’s, and Trass 30.76 ton’s. Then, the minimum inventory calculation is carried out, it is known that the minimum inventory results are found in Trass raw materials of 260.18 ton’s while the results for maximum inventory are in Gypsum of 22117.18 ton’s. After calculating the min-max, an order policy can be obtained for each material, Silica Sand 1074.85 ton’s, Gypsum 9575.63 ton’s, Fly Ash 217.68 ton’s, and Trass 198.65 ton’s.
Design of service quality and analysis of customer satisfaction in SME culinary products with the quality function deployment method Supriyati, Supriyati; Putra, Fibi Eko; Widya, Adi Rusdi
Operations Excellence: Journal of Applied Industrial Engineering Vol. 15, No. 2, (2023): OE July 2023
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/oe.2023.v15.i2.080

Abstract

SMEs are medium-level community businesses with limited capital. The type of business that can revive the economy, especially the economy for families, is the SMEs culinary business which is consumed by the community every day. One of the SMEs that is still surviving despite experiencing a decline is the SMEs in the culinary field. The results of observations and interviews with one of the SMEs culinary businesses, in a period of 12 months, sales decreased by an average of up to 50%. The cause of the decline in sales is not known with certainty, so it is necessary to evaluate the performance of these SMEs. QFD is one method that can be used to obtain a clear and objective picture of Customer needs. The research method involves Customers as respondents, the number of samples is 80 with 26 valid and reliable attributes. The results of the analysis using Importance Performance Analysis (IPA) show that there are five attributes that are considered important for Customers to become priority improvements. These attributes are related to the Tangible aspect, namely the presentation of Durian sticky rice products that are attractive, the portion according to expectations, Assurance, namely the consistency of the ripeness of the durian fruit, the taste of the durian fruit is felt in every portion, Empathy, namely the ethics in serving Customers. Based on the QFD approach, the priority is the technical importance rating by making standard operating procedures for each technical response in the form of standard operating procedures for checking raw materials and the amount of raw materials used in each serving, re-examining, providing the composition of the main raw materials so that the taste remains consistent (Assurance). Serving techniques with serving portions, cleanliness of physical facilities (Tangible), service to Customers and socialization of Customer service standards (Emphaty), and ordering techniques (reliability). So that in order to maintain and maintain the quality of SMEs products and services in the culinary field, it is necessary to conduct a performance assessment, especially related to the four aspects of service quality Assurance, Tangible, Empathy and Reliability as a design in assessing service quality
Quality improvement of food products using taguchi method: a study in a bread product SME Alifin, Fakhri Ikhwanul; Rahma, Rana Ardila; Sadidan, Ikhwanussafa; Fitriani, Risma
Operations Excellence: Journal of Applied Industrial Engineering Vol. 15, No. 2, (2023): OE July 2023
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/oe.2023.v15.i2.078

Abstract

Quality is one of the most crucial factors for manufactured products. Good product quality will increase customer loyalty and hence, higher profit for the company. SR company is a local Small Medium Enterprise (SME) in Bandung that produces bread products. Among various kinds of bread, Kadet is the main product with an average production of approximately 1000 pcs per day. In addition, Kadet bread has numerous defective products with an average of 3%-5% per 1000 pcs. Moreover, Kadet is a product baked at high temperatures, and hence, the timing of the production staff is crucial to prevent defectiveness. In this work, we use the Taguchi method to obtain factors that produce defectiveness and the combination of the optimal production factors. Furthermore, using the Analysis of Variance, the results show the optimal process design for minimum defective Kadet bread products as the process evaluation for better product quality. 
Process improvement analysis in toll corridor development with lean six sigma approach: case in PT Jasamarga Related Business Batubara, David Perkasa; Rouli, Juliana
Operations Excellence: Journal of Applied Industrial Engineering Vol. 15, No. 3, (2023): OE November 2023
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/oe.2023.v15.i3.093

Abstract

Toll Corridor Development (TCD) is one of the businesses conducted by PT Jasamarga Related Business as a follow-up to the issuance of Peraturan Menteri Pekerjaan Umum dan Perumahan Rakyat (PUPR) No. 28 of 2021. In the development of its first TCD project, Jasamarga Related Business (JMRB) encountered issues that resulted in the delay of the project's completion. The purpose of this research is to analyze and make improvements to the causes of delays in the Taman Mini TCD project. In this research, the lean six sigma approach is used to analyze process improvements that can be carried out so that these problems can be minimized in the further development of TCD. To identify activities that cause delays in the implementation of this project, the critical path method (CPM) was used based on the results of interviews with those directly involved in the development of TCD project. From the activities that cause the delay, a causal analysis is carried out using a fishbone diagram, and then an analysis of possible improvements is carried out using a lean concept approach. Based on the analysis results, three main issues are identified, namely inadequate planning process, ineffective partner or consultant selection process and delays in construction completion. From the cause-and-effect analysis, it can be concluded that potential improvements can be made by implementing the concept of pull planning, improving the business process by reducing waste and enhancing value-added activities, establishing effective stakeholder management, and maximizing the use of technology-based applications to aid project control.
Analysis of packaging quality control of PT. LMN using the seven tools method and new seven tools Permana, Handy Natan; Saifuddin, Joumil Aidil
Operations Excellence: Journal of Applied Industrial Engineering Vol. 16, No. 2 (2024): OE July 2024
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/oe.2024.v16.i2.109

Abstract

Product quality is a crucial factor that influences success in the market and in the company's production process. Quality products meet company standards and consumer expectations.  The aim of this study is to identify the causes of product rejections and to analyze process improvements in terms of man, material, machine, method, measurement, and environment to reduce product rejections. The results of data collection show the dominant types of rejects, with the following proposed improvements: Maintain the operators' jobdesk so that they become experts in one area, by motivating them through rewards to improve work quality. Ensure spare stock, efficient forklift lanes and H-1 glue communication. Make continuous improvements in every part of the packaging department and build an information system for glue type requirements. Place SOPs in a visible and obvious location, add machine filters near operators, and improve machines to prevent overweight/underweight rejects. Check and calibrate machines regularly, implement scheduled machine maintenance checklists, and standardise maintenance and delegate tasks to optimise staff schedules. Regularly update the parts list according to the machine specifications, make a tool to pour glue from the drum with minimal noise, and perform regular machine maintenance and use bearings to reduce vibration.
Analysis of coffee bean supplier selection using AHP-TOPSIS methods: case study on a ready-to-use coffee powder company Sanjaya, Yahya Cakra; Pulansari, Farida; Rahmawati, Nur
Operations Excellence: Journal of Applied Industrial Engineering Vol. 16, No. 1, (2024): OE March 2024
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/oe.2024.v16.i1.100

Abstract

The global market competition that companies must face along with increasingly competitive market developments means that each company has its own challenges in preparing competitive strategies. PT. XYZ is a company that operates in the field of coffee bean processing. The related problems that occur are frequent delays in sending raw materials by suppliers which results in delivery delays, which means they are related to supplier selection problems. Therefore, in this research, the AHP TOPSIS method was used to conduct supplier analysis, AHP is utilized to make decisions and consider multiple factors, subsequently ranking them. Meanwhile, TOPSIS is employed to address multi-criteria problems by comparing the best alternative with the worst alternative among many options. The results of this research are that Supplier 4 is in first place with a preference value of 0.6510, while the second and third places are occupied by Supplier 1 and Supplier 3 respectively.
Analysis of cashiers’ work postures using the Quick Exposure Check (QEC): a case study in Yogyakarta Prahasti, Saptiana Nur; Vicananda, Ladayan Pradana; Ma’ruf, Khakam; Setiawan, Rizal Justian; Azizah, Nur
Operations Excellence: Journal of Applied Industrial Engineering Vol. 15, No. 3, (2023): OE November 2023
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/oe.2023.v15.i3.091

Abstract

The analysis of cashiers' work postures aims to minimize or avoid musculoskeletal problems. The research uses Quick Exposure Check (QEC) to identify working condition problems that focus on the back, shoulders, arms, and neck. The goal is to improve working conditions by reducing the risk of worker fatigue, unergonomic work postures, and musculoskeletal pain, which leads to increased productivity. To determine the extent of musculoskeletal disorders, the research method uses a quick exposure check that focuses on the upper body, including the back, neck, arms/shoulders, and wrists, which are common problem areas for workers. Based on the collected data, the exposure score and level are calculated to determine the follow-up to the research. The data shows that 50% of cashiers have an exposure level of 50 - 60%, and further research and changes are required. Meanwhile, another 50% of cashiers have an exposure level value above 70%, requiring immediate research and changes. The conclusion of this analysis is that it is essential to continuously check and maintain the ergonomics of the cashier's work. Regular inspections and necessary corrective actions must be conducted to ensure ergonomic working conditions and protect the health of cashiers.
Developing a transformation readiness index for Industry 4.0: a case study of food logistics in the rice commodity sector Ichsani, Firna Nur; Hasbullah, Hasbullah
Operations Excellence: Journal of Applied Industrial Engineering Vol. 16, No. 2 (2024): OE July 2024
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/oe.2024.v16.i2.116

Abstract

In 2021, it was recorded that Indonesia had a population of 272,682.50 million people, which then underwent an increase of 1.12% from the previous year to 275,773.80 million people in 2022. The rapid growth of the population will affect the food supply in Indonesia. It is known that many provinces in Indonesia still have a percentage deficit in food distribution, especially in the rice commodity, which needs to be improved to meet projected annual needs. This research tries to develop a transformation index by combining the Industry 4.0 concept model with the logistics operating in the food sector. To improve food security in Indonesia by transforming towards Industry 4.0. Research with a qualitative descriptive approach produces several factors that can influence the transformation index of food logistics companies in Indonesia towards Industry 4.0. The results of the use of technology, especially in encouraging transparent and real-time data transfer (horizontal and vertical) and decision-making in the logistics sector, are critical to pay attention to. However, organizational management, culture, and human resources are also essential things to pay attention to in transformation.

Page 26 of 32 | Total Record : 317

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