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Technical Evaluation and Financial Analysis of a Retrofitting Investment Project for Production Machinery in a Cement Plant Taufik; Putri, Nilda Tri; Kevin, Muhammad
Jurnal Optimasi Sistem Industri Vol. 22 No. 2 (2023): Published in December 2023
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (381.71 KB) | DOI: 10.25077/josi.v22.n2.p215-229.2023

Abstract

In today's rapidly evolving industrial landscape, businesses are increasingly challenged to strike a balance between enhancing productivity and maintaining product quality. Company X, a renowned cement manufacturer in Indonesia, relies heavily on four key raw materials, among which clay is particularly crucial for the raw mix. Recent trends have shown a decrease in the Al2O3 composition of clay, necessitating adjustments in clay capacity to uphold quality standards. A thorough technical evaluation of the plant highlighted that a significant number of critical machines, totaling 17, were operating with mechanical availability below the desired threshold. Additionally, a utility analysis pinpointed a shortfall in meeting the required clay tonnage, leading to the identification of machines that would benefit from retrofitting. The financial implications of this initiative were substantial, with the initial investment for the upgrades and subsequent operational costs in the first year being considerable. Yet, this expenditure was offset by a notable profit in the first year post-retrofitting. Key financial metrics further underscored the project's viability: a highly favorable Net Present Value (NPV), an impressive Internal Rate of Return (IRR), a rapid Payback Period (PP), and a significant Profitability Index (PI). These parameters, derived from an exhaustive analysis, clearly support the strategic decision to invest in retrofitting the production machinery at Company X's cement plant, illustrating the project's feasibility and the prospective benefits of this investment.
Designing Quality Management Systems For Thresher Production Using ISO 9001-2015 Noviyanti, Anna Annida; Putri, Nilda Tri; Elsera, Azira Fitira
International Journal of Innovation in Enterprise System Vol. 2 No. 1 (2018): International Journal of Innovation in Enterprise System
Publisher : School of Industrial and System Engineering, Telkom University

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Abstract

CV Citra Dragon is a small and medium-sized industry that produces agricultural machine tools wich is located in Padang Pariaman, West Sumatra. CV Citra Dragon has been active in production since 1976 and has the potential to increase the production of alsintan in order to compete in and outside the country. Therefore, CV Citra Dragon needs to improve the quality of the products produced. The best way to recognize the product quality is by implementing the Quality Management System (QMS). QMS of CV Citra Dragon is necessary to expand to other products which is thresher machine. The research based on ISO 9001-2015 standards. The design of QMS on CV Citra Dragon was done through field survey. Documents made on thresher production units are two compulsory and mandatory records, working procedures on thresher production, as well as working instructions and recording forms required. Once a quality document has been created, the analysis was performed by comparing the pre-existing QMS with the most recent QMS tailored to ISO 9001-2015. Therefore, some documents must be obtained by ISO 9001-2015 in accordance with the QMS used CV Citra Dragon was based on the main process approach. The results of documents that have been verified by the company are the scope of the QMS, quality policy, quality objectives, criteria for evaluation and selection of suppliers, product realization planning records, design and development records, product review, and monitoring records and measurement results. The existence of a good quality document is very important for companies to implement QMS. Keywords : Document, Quality Management System, thresher.
An Insider Threat Categorization Framework for Automated Manufacturing Execution System Putri, Nilda Tri; Elsera, Azira Fitria; Mohammad, Nur Ameera Natasha; Yassin, Warusia Mohamed; Ahmad, Rabiah; Hassan, Aslinda; Al Mhiqani, Mohammed Nasser Ahmed
International Journal of Innovation in Enterprise System Vol. 3 No. 2 (2019): International Journal of Innovation in Enterprise System
Publisher : School of Industrial and System Engineering, Telkom University

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Abstract

Insider threats become one of the most dangerous threats in the cyber world as compared to outsider as the insiders have knowledge of assets. In addition, the threats itself considered in-visible and no one can predict what, when and how exactly the threat launched. Based on conducting literature, threat in Automated Manufacturing Execution Systems (AMESs) can be divided into three principle factors. Moreover, there is no standard framework to be referring which exist nowadays to categorize such factors in order to identify insider threats possible features. Therefore, from the conducted literature a standard theoretical categorization of insider threats framework for AMESs has been proposed. Hence, three principle factors, i.e. Human, Systems and Machine have considered as major categorization of insider threats. Consequently, the possible features for each factor identified based on previous researcher recommendations. Therefore, via identifying possible features and categorize it into principle factors or groups, a standard framework could be derived. These frameworks will contribute more benefit specifically in the manufacturing field as a reference to mitigate an insider threat. Keywords—automated manufacturing execution systems insider threats, factors and features, insider threat categorization framework.
Review Lean Manufacturing: Faktor Produksi 4M dan Aspek QCD Nurlaila, Qomarotun; Putri, Nilda Tri; Amrina, Elita
Jurnal PASTI (Penelitian dan Aplikasi Sistem dan Teknik Industri) Vol 17, No 3 (2023): Jurnal PASTI
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/pasti.2023.v17i3.001

Abstract

Lean Manufacturing (LM) terbukti bisa meningkatkan daya saing perusahaan. Perkembangan penelitian LM bisa dilihat dari tren penelitian tiap tahun pada ScienceDirect. Tujuan dari penelitian adalah menemukan celah penelitian dari 39 artikel. Metode yang digunakan adalah studi literatur yaitu dengan mereview artikel berdasarkan nama jurnal, nama negara, sektor industri, faktor produksi 4M, aspek QCD dan Lean Tools (LT). Penerapan LM pada industri manufaktur (95%) sedangkan UKM (5%), mayoritas diterapkan pada faktor Method dan minoritas pada faktor Material, semua membahas aspek Cost dan paling sedikit membahas aspek Delivery. LT yang paling sering digunakan adalah Kaizen, VSM, TPM, Cause and effect analysis, Tack Time. LT yang hanya digunakan sekali adalah DOE, QS, MCD, ERP. Ditemukan celah penelitian yaitu penelitian pada sektor industri UKM, faktor produksi Material serta aspek Quality.
Pengaruh Kualitas Pelayanan Kefarmasian terhadap Kepuasan Pasien Rawat Inap RSUP Dr. M. Djamil Padang Linda Eka Putri; Dachriyanus; Nilda Tri Putri
Jurnal Optimasi Sistem Industri Vol. 17 No. 2 (2018): Published in October 2018
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (890.303 KB) | DOI: 10.25077/josi.v17.n2.p152-161.2018

Abstract

Pharmaceutical services at the hospital are an integral part of the hospital's service system. The quality of the pharmacy service affects the hospital's performance as a service company. Pharmacy Installation of Dr. M. Djamil Padang Hospital based on data from Public Relation and Public Complaint Installation of Dr. M. Djamil Padang Hospital get complaint report on pharmacy service as many as 28 complaint reports in 2015 and 42 complaint reports in 2016. A decrease in the quality of care is indicated by the decrease in the number of in-patients in the period of 2013-2015 reaching an average of 2.89%, while the level of complaints on the quality of in-patient pharmacy service remains high with 31 complaints by years. This study aims to analyze the effect of hospital pharmacy service quality on patient satisfaction at pharmacy depo Dr. M. Djamil Padang Hospital. The measurements of all constructs and research indicators used questionnaires distributed to 320 in-patients as respondents. Path analysis used with software application of SPSS 17 to analyze the data. The result concluded that service quality consisting of service speed, attitude, and empathy of officer, drug availability, pharmacy depot location, and drug information simultaneously, influence on patient's satisfaction with a contribution of 74.10%. However, the partial attitude and empathy of the officers have no effect on the satisfaction of patients. While the provision of drug information is the most dominant factor of service quality in affecting patient satisfaction at pharmacy depo Dr. M. Djamil Padang Hospital.
A Solution Approach on Reducing Defects in Batik Tanah Liek Production Process of a Small and Medium-sized Enterprise Agus Sutanto; Nilda Tri Putri; Tessa Alqifti; Sha'ri Mohd Yusof
Jurnal Optimasi Sistem Industri Vol. 23 No. 2 (2024): Published in January 2025 (published late, please read our note)
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (289.561 KB) | DOI: 10.25077/josi.v23.n2.p266-282.2024

Abstract

Small and medium enterprises (SMEs) often struggle with implementing effective quality management practices, especially in traditional industries like batik production. These challenges include ensuring consistent product quality to differentiate from competitors and attract customers. This study focuses on addressing quality control issues in small-scale Batik Tanah Liek production, where significant defects persist. The research aims to assess existing practices, identify defect causes, and propose solutions to enhance product quality and reduce rejection rates. These efforts contribute to improving production efficiency and supporting the sustainability of this traditional craft. The study employs a systematic approach combining quality management methodologies, including data collection, problem identification, brainstorming, the Failure Mode and Effects Analysis (FMEA) approach, and actionable recommendations. Data was gathered through a questionnaire to capture perspectives on defects and quality control issues in batik production. Key quality challenges identified include faded batik, torn fabric, and incorrect motifs. Analysis revealed that the primary cause of incorrect motifs is the malfunctioning canting tool, which hinders proper wax application. Additionally, defects in dyeing and boiling processes contribute to fabric fading and tearing, exacerbating quality issues. The findings underscore the need for systematic solutions, such as creating clear work instructions, designing Standard Operating Procedures (SOPs) for process consistency, and implementing preventive maintenance schedules for equipment. By addressing these issues, the study provides practical interventions to improve production quality. These measures not only enhance the economic viability of SMEs but also play a crucial role in preserving the cultural heritage of Batik Tanah Liek. The implications of this research highlight the potential for broader adoption of quality management practices in traditional industries to ensure their sustainability in competitive markets.
Ergonomic Evaluation on Chicken Feeder Tool at Egg-Laying Chicken Farm SME Nilda Tri Putri; Elita Amrina; Dicky Fatrias; Insannul Kamil; Nabila Humaida
Jurnal Optimasi Sistem Industri Vol. 20 No. 1 (2021): Published in April 2021
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v20.n1.p52-60.2021

Abstract

This research aims to evaluate the egg-laying chicken feeder that was designed at egg-laying chicken farm small and medium enterprise (SME). The main reason of this tool design was due to the worker’s complain of feeling pain during the feeding process. Evaluation was performed based on Nordic Body Map questionnaire result, physiological workload, and NIOSH lifting equation calculation. The observed work ranged from the feed filling in the basket until all feeds were distributed. The results showed that the %CVL was in the range of 18%-30% and the energy consumption of workers was in the range of 1.24-3.00 Kcal/minute. Thus, physiologically, the work activities carried out by the feed workers were categorized as very light workload. Meanwhile, evaluation using Lifting Index (LI) methods in the process of feeding showed the LI value ranged from 0.9-1, therefore this activity is safe to perform manually. Based on the prototype evaluation on the feeding aid, the process of feeding activities was more effective 1.5 times faster than the old tools. In addition, with the use of this new tool, the feeding process was easier to adjust the dose each time.
Perancangan Sistem Manajemen Mutu Terintegrasi di Baristand Industri Padang Yudo Purnomo; Nilda Tri Putri; Elita Amrina
Jurnal Optimasi Sistem Industri Vol. 16 No. 2 (2017): Published in October 2017
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v16.n2.p80-88.2017

Abstract

Baristand Industri Padang is an agency under control Ministry of Industry of Indonesia which it has a duty to serve the industries involving research activities, standardization and certification. To realize the programs, Baristand Industri Padang implemented a quality management system including ISO 9001, ISO/IEC 17025, ISO/IEC 17065, and KNAPPP 02. Nevertheless, it has been running separately. Therefore, quality of products not only proven by testing the final product, but also needed other evidence as a certificate that ensuring the quality of products. This research aims to design the Quality Management System for Baristand Industri Padang which it was implemented using life cycle methodology. Finding of this study revealed there was integration of ISO 9001, ISO/IEC 17025, ISO/IEC 17065, and KNAPPP 02 in the context of the structure of the process, documents, and organization. In the context of the structure of processes, it obtained four groups of primary process involving management, research and standardization, support, and improvement. Moreover, In terms of documentation, there was three levels of the document such as the document of strategic policy, quality guideline and procedures. While aspects of the organizational structure, the integration of quality management system required to develop the organizational structure that consist of Top Management, Technical Manager, Quality/Management Representative, Researcher and Administrative/Technical Staff. In addition, this study provided an integrated quality management information system including management of quality documents and quality records. Finally, the integrated quality management system and quality management information system has been designed to meet the expectations of the organization.
Evaluasi Kualitas Layanan terhadap Operator Telekomunikasi: Tinjauan Perspektif Pelanggan Suryat Handoko; Nilda Tri Putri; Jonrinaldi Jonrinaldi
Jurnal Optimasi Sistem Industri Vol. 16 No. 2 (2017): Published in October 2017
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v16.n2.p140-149.2017

Abstract

PT Semen Padang is one of the subsidiaries of PT Semen Indonesia Tbk, which is one of the state-owned enterprises engaged in the business of cement production and trade. PT Semen Padang is now actively promoting synergies and pursuing the company's performance growth to be able to cope with competition in an increasingly tight and complex cement industry. In order to face this, it is necessary to have adequate human resource management from the company. One of the successes of company’s management is the availability of sufficient human resources with high quality, have integrity, professional in accordance with the functions and tasks of each personal and work unit. Since 2015, there has been an increase in overtime hours. This is due to the shortage of employees of PT Semen Padang. The reason is the number of employees who retired and there is no recruitment. Thus, there are some tasks that have not been implemented. In addition, in May 2016 one of the KPI's timely procurement points in the spare parts field was not achieved. Therefore, it is necessary to investigate the workload of employees and give a recommendation of the optimal employee needs for this bureau in the future. The study found that Buyer Bureau Procurement of goods PT Semen Padang has only 74.4% productive work time. It is because the actual number of buyers for the spare parts field is 6 people, while the number of buyers optimal based on the calculation is 8 people.
Analisis Penggunaan Alat dan Teknik Pengendalian Mutu dalam Penerapan Sistem Manajemen Mutu pada Perusahaan Karet Bersertifikat ISO 9001:2008 Nofriani Fajrah; Nilda Tri Putri
Jurnal Optimasi Sistem Industri Vol. 15 No. 2 (2016): Published in November 2016
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v15.n2.p203-216.2016

Abstract

The increasing competition in the global market and high consumer expectations for quality products, encourage companies to be able to produce quality products which meets international standards. One of the activities in improving quality that conform to product specifications is applying appropriate quality control system involving all aspects of the company that are integrated with the standard ISO 9001: 2008 as a guide. However, the rubber industry in West Sumatra still faces obstacles in the implementation of quality control techniques and tools of as experienced by ABC and XYZ. This study aimed to evaluate the application of quality control tools and techniques in the manufacturing company which is certified ISO 9001: 2008, ABC and XYZ. This research was conducted by calculating the value of DPMO (Defect Per Million Opportunities). Based on the results found that the two companies have different DPMO value. PT ABC obtained by 5,2σ sigma level from DPMO value of 94.33 for the types of defects whitespot and sigma level of 4,2σ of DPMO value of 3365.096 to defect type of metal, while the XYZ obtain sigma level of 5,3σ from DPMO value of 728.697 for the types of defects whitespot and sigma level of 4,8σ of DPMO value of 425.441 for the type of metal defects. From the analysis it can be concluded that the two companies have not been effective in applying the techniques and tools of quality control in accordance with the standards ISO 9001: 2008 in order to achieve continuous quality improvement. This is indicated by the key success factor of the implementation techniques and tools of quality control is not applied appropriately in achieving continuous quality improvement.
Co-Authors Abdul Talib, Hayati Habibah Adi, Alexie Herryandie Bronto Adisty Luthfiah Adisty Luthfiah Adisty Luthfiah Afdhal Habibullah Afri Adnan Afrinaldi, Feri Agus Sutanto Agus Umar Ryadin Ahmad Ahmad Ahmad Syafruddin Ahmad Syafruddin Ahmad, Rabiah Al Mhiqani, Mohammed Nasser Ahmed Alexie Herryandhi Broto Adi Alexie Herryandie Alfadhlani Alizar Hasan Alqadri, Farid Alyani Rahma Putri Amrina, Elita Andriani Andriani Anggraini, Ika Novia Arif Kharisman Asmuliardi Muluk Ayu Bidiawati JR Azira Fitira Elsera Basyir, Vaulinne Broto Adi, Alexie Herryandhi Buang Alias Budi Satria Dachriyanus Debby Maurine Aristi Defri Nofriadi Demi Ramadian Desriyenti, Desriyenti Desto Jumeno Devi Yulia Rahmi Dicky Fatrias Difana Meilani Elita Amrina Elsa Eka Putri Elsayed Ali Ismail Elsera, Azira Fitira Elsera, Azira Fitria Eri Wirdianto Fadjar Goembira Fajar Aristiyanto Fajar Aristiyanto Fandy Triawan Fikri, Ryan Kamal Fitra Lestari Hafiz Rahman, Hafiz Hassan, Aslinda Hayati Habibah Abdul Talib Henmaidi Henmaidi Henny Yustisia Herawati, Afriyastuti Hilma Raimona Zadry Ikhwan Arief Ilham Septiadi Indah Kurnia Ramadhani Ismail, Elsayed Ali iswahyuningsih iswahyuningsih Iwan Vanany Jafril Tanjung, Jafril Jamaludin, Khairur Rijal Jonrinaldi Kamil, Insannul Kevin, Muhammad Khairul Ihwan, Khairul Khairur Rijal Jamaludin Kharisman, Arif Kristina, Dian Lestari Setiawati Liesmayani, Elvi Era Linda Eka Putri Lona Delviari Lusi Susanti M Alif Arrahman M Alif Arrahman M. Alif Arrahman M. Alif Arrahman M. Rozaq M. Rozaq M. Rozaq, M. Rozaq M.Arif Rahman.S Arif Mego Plamonia Melani Putri Meuthia Meuthia Meuthia, Meuthia Mohammad, Nur Ameera Natasha Muhammad Abdi, Muhammad Muhammad Erlangga Adi Nugraha Muhammad Erlangga Adi Nugraha Muhammad Kevin Nabila Humaida Naf'an, Emil Nelvi Irawati Nevy Sandra Nofriani Fajrah, Nofriani Noviyanti, Anna Annida Prima Fithri Putra, Irwan Kartadi Putri, Alyani Rahma Putri, Prima Yane Qomarotun Nurlaila, Qomarotun Rahmahdian S, Rini Ratni Prima Lita Recha Sundari Refdilzon Yasra, Refdilzon reinny patrisina Rhima Suryani Rika Ampuh Hadiguna Rima Rofifah Putri Rima Semiarty Rizki, M. Rodiah, Yuli Ryadin, Agus Umar Ryan Kamal Fikri Sahria Sahria Saputra, Ikhsan Rapi Sha'ri Mohd Yusof Shari Mohd Yusof Suryat Handoko Taufik Taufik Taufik Tengku Nurainun Tessa Alqifti Viola Kiswara Wisnel Wisnel Yasra, Refdilzon Yassin, Warusia Mohamed Yesmizarti Muchtiar Yohanna Safari Yosritzal, Yosritzal Yudo Purnomo Yusmar, Fajri Zakuan, Norhayati