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All Journal J@TI (TEKNIK INDUSTRI) Industrial Engineering Online Journal Telematika : Jurnal Informatika dan Teknologi Informasi OPSI Jurnal Sistem dan Manajemen Industri JURTI Jurnal Teknik Industri Impression : Jurnal Teknologi dan Informasi Spektrum Industri
Berty Dwi Rahmawati
Universitas Pembangunan Nasional Veteran Yogyakarta
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Journal : OPSI

 1 
Raw Mill Machine Effectiveness Measurement through the Total Productive Maintenance (TPM) Implementation Shandy Satria Wangsa Putra; Berty Dwi Rahmawati
OPSI Vol 15, No 2 (2022): ISSN 1693-2102
Publisher : Jurusan Teknik Industri Fakultas Teknologi Industri UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/opsi.v15i1.7729

Abstract

PT X is a cement manufacturer company that experienced a loss of production caused by the high value of downtime. Based on downtime data, the raw mill machine appears to have the most significant value in machine downtime. This study aims to measure the raw mill machine's effectiveness in applying Total Productive Maintenance (TPM). The method used in this research is Overall Equipment Effectiveness (OEE). This method measures engine effectiveness and loss factor analysis using the Six Big Losses method, as well as finding the root cause through a five why and cause and effect diagram to give the most suitable recommendations. The result of this study found that the average OEE value in 2021 was below the international OEE standard of 85%, which is 72% and 67% for Raw Mill Plant 9 and Raw Mill Plant 10, respectively. The low performance of Raw Mill Plant 9 and Raw Mill Plant 10 machines is a consequence of breakdown losses and reduced speed losses that had happened. The root causes were a lack of training for mechanics and no stock control for spare parts. The recommendations are to improve training programs and facilities and create a spare parts inventory management system.
Evaluation of waiting time for outpatient services at Respira Hospital Yogyakarta using discrete system simulation Astanti, Yuli Dwi; Rahmawati, Berty Dwi; Akbar, Ahmad Taufiq; Rysnalendra, Alya Pangesti
OPSI Vol 16, No 2 (2023): ISSN 1693-2102
Publisher : Jurusan Teknik Industri Fakultas Teknologi Industri UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/opsi.v16i2.11536

Abstract

The Ministry of Health of the Republic of Indonesia has established standard rules for the quality of outpatient service in hospitals. One indicator of the quality of outpatient services at a hospital is the patient's waiting time to be served either by a specialist or other services such as a pharmacy. Respira Hospital Yogyakarta is a special pulmonary and respiratory hospital in Yogyakarta that continues to improve the quality of its services. Based on the results of observations and interviews it is known that in terms of waiting time, patients at Respira Hospital Yogyakarta still have to wait to get service. Examples of queues that occur include patients waiting for a specialist doctor's examination for around 75 to 90 minutes. waiting at the pharmacy and cashier for up to 60 minutes or more. This study attempts to evaluate the waiting time for outpatient services at Respira Hospital Yogyakarta using a simulation. Based on the simulation results, it is known that the patient's waiting time in the system is 217.33 minutes and the longest waiting time is in the pediatric polyclinic and pharmacy departments. After the scenario implementation were made, namely in the pediatric polyclinic and pharmacy sections, the waiting time decreased to 177.19 minutes. This means that evaluations carried out using simulations can help hospitals reduce waiting time for outpatients
A Quality Function Deployment model: Application design for sauce bottle washer Rahmawati, Berty Dwi; Bayogi Putra Pradana , Igh; Rachman , Buna Rizal
OPSI Vol 18 No 1 (2025): OPSI - June 2025
Publisher : Jurusan Teknik Industri, Fakultas Teknologi Industri UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/opsi.v18i1.14659

Abstract

Small and Medium Enterprises (SMEs) play a crucial role in employment generation and contribute substantially to national economic development, particularly in developing countries. This study examines an SME in Yogyakarta that produces, on average, 175 crates (4,200 bottles) of sauce and 5 crates (1,200 bottles) of sweet sauce daily. The bottle washing process is currently performed manually, requiring up to 3,737 minutes per day. This inefficiency increases labor dependency and delays production due to the unavailability of clean bottles. To address this issue, the study adopts the Quality Function Deployment (QFD) method to translate customer needs into technical specifications for product development. The House of Quality (HoQ) framework is utilized to identify twelve critical product attributes that inform the design of a sauce bottle washer. The resulting design comprises 17 components, including a main frame, dynamo, washing basin, bottle holder, bearing units, inner brush shafts, pulley shafts, brushes, pulleys (2.5-inch and 10-inch), gears, V-belts, chains, caps, wheels, switches, and stoppers. The implementation of this washing system successfully reduces the total bottle washing time by 720 minutes per day. This improvement enables the SME to meet its daily production targets more effectively and contributes to increased operational efficiency.
Evaluation of waiting time for outpatient services at Respira Hospital Yogyakarta using discrete system simulation Astanti, Yuli Dwi; Rahmawati, Berty Dwi; Akbar, Ahmad Taufiq; Rysnalendra, Alya Pangesti
OPSI Vol 16 No 2 (2023): ISSN 1693-2102
Publisher : Jurusan Teknik Industri, Fakultas Teknologi Industri UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/opsi.v16i2.11536

Abstract

The Ministry of Health of the Republic of Indonesia has established standard rules for the quality of outpatient service in hospitals. One indicator of the quality of outpatient services at a hospital is the patient's waiting time to be served either by a specialist or other services such as a pharmacy. Respira Hospital Yogyakarta is a special pulmonary and respiratory hospital in Yogyakarta that continues to improve the quality of its services. Based on the results of observations and interviews it is known that in terms of waiting time, patients at Respira Hospital Yogyakarta still have to wait to get service. Examples of queues that occur include patients waiting for a specialist doctor's examination for around 75 to 90 minutes. waiting at the pharmacy and cashier for up to 60 minutes or more. This study attempts to evaluate the waiting time for outpatient services at Respira Hospital Yogyakarta using a simulation. Based on the simulation results, it is known that the patient's waiting time in the system is 217.33 minutes and the longest waiting time is in the pediatric polyclinic and pharmacy departments. After the scenario implementation were made, namely in the pediatric polyclinic and pharmacy sections, the waiting time decreased to 177.19 minutes. This means that evaluations carried out using simulations can help hospitals reduce waiting time for outpatients
Co-Authors Afifah, Salsabilla Zahra Ahmad Taufiq Akbar Akbar, Ahmad Taufiq Astrid Wahyu Adventri Wibowo Bayogi Putra Pradana , Igh Fitrianingrum, Sabrina Nugrahani Hasan Mastrisiswadi Hasan Mastrisiswadi Maharani, Nadia Nisya Budi Panjaitan, Nofry Austin Rachman , Buna Rizal Rysnalendra, Alya Pangesti Shandy Satria Wangsa Putra Sriyanto Sriyanto Wibowo, Astrid Wahyu Adventri Wiwik Budiawan Yuli Dwi Astanti