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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.
Usulan Aplikasi Metode Material Requirement Planning (MRP) dalam Perencanaan Kebutuhan Firebrick PT Semen Padang Fajar Aristiyanto; Nilda Tri Putri; Alexie Herryandie Bronto Adi
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 | Full PDF (1127.146 KB) | DOI: 10.25077/josi.v15.n2.p217-226.2016

Abstract

The purpose of this article is to describe the results of research models firebrick requirements planning in PT Semen Padang with MRP method. Firebrick is one of the spare parts and essential in the production of operational PT Semen Padang as protective and insulating of shell kiln. This article describes the firebrick requirements planning at all kiln Indarung II / III, IV and V to meet the needs of 2017 up to 2018. One type of firebrick most widely used in PT Semen Padang is spinal firebrick. Spinal firebrick highly susceptible to hydration and moisture as the main component is MgO compound that is hygroscopic so susceptible to damage in the form of cracks firebrick. Based on the research that has been done, get MRP application design that can be used in planning the needs of firebrick PT Semen Padang to come. Plans need firebrick for compliance in 2017 to 2018 : (a) item 422 purchased through two phases in the 4th month of 12.711 pcs and in the 9th month of 24.909 pcs (b) item 622 purchased through two phases in the 4th month of 21.185 pcs and in the 9th month of 41.515 pcs (c) item P22 purchased through two phases in the 4th month of 446 pcs and in the 9th month of 874 pcs (d) item P + 22 purchased through two phases in the 4th month of 446 pcs and in the 9th month of 874 pcs (e) item 425 purchased in the 8th month of 14.626 pcs (f) item 825 purchased in the 8th month of 20.600 pcs (g) P25 item purchased in the 8th month of 412 pcs (h) P + 25 items purchased in the 8th month of 412 pcs.
Penjadwalan Cement Mill Berbasis Minimasi Faktor Klinker dalam Proses Pembilasan dan Impor Klinker Nilda Tri Putri; Indah Kurnia Ramadhani
Jurnal Optimasi Sistem Industri Vol. 15 No. 1 (2016): Published in March 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.n1.p62-77.2016

Abstract

PT Semen Padang is one of the cement companies in Indonesia. Cement production influenced by the number of demand, raw materials and the number of the available machine. The number of demand increases with a corporate capacity which keeps the company had to set an optimal production schedule. Scheduling production should be followed by the availability of raw materials (clinker). The number of clinkers required influenced by the number of demands and clinker elapsed to the flushing process. Flushing process happens if the transition products produced from Non-OPC to a product OPC, for one flushing process causes clinker consumption 7% more than the existing capacity decreases. Deficient in a capacity covered by importing clinker which causes high-cost production. So, it necessary to make cement mill schedule by minimizing flushing process, so clinker that will be used become optimized. Steps that will be done in this study began with the survey system, identify problems, and data collection. Data collected are machine cement mill and kiln capacity, demands, and flushing process. Then designed a formulation model that minimizes clinker factor and the number of clinker imports needed, so that obtained scheduling machine cement mill to produce OPC and Non-OPC. Results obtained by reducing the number of flushing process because the cement mill designed to produce one type of product per day, so the flushing process could happen if there is transition cement production Non-OPC on the day-i to cement OPC on the day i+1. Cement OPC produced by Indarung II, III, and V. Indarung IV only produced cement Non-OPC, so the flushing process happened in Indarung II, III, and V.
Usulan Strategi Pengembangan Industri Pengolahan Kelapa Skala IKM di Kabupaten Indragiri Hilir Khairul Ihwan; Nilda Tri Putri; Jonrinaldi
Jurnal Optimasi Sistem Industri Vol. 14 No. 2 (2015): Published in October 2015
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.v14.n2.p227-237.2015

Abstract

The majority of the population in Indragiri Hilir (Inhil) already rely on palm plantations as the main income. They have already sold in the form of coconut oil and copra round with a relatively low price and is unable to provide a decent life. It is increasing because of the low level of productivity of coconut plantations and commercial systems that are less profitable for farmers. While in other areas of the coconut is a commodity that can be processed into a wide range of high-value products with simple technologies that can be done by small and medium industries. So, we need development strategies IKM-scale oil processing industry which is able to increase the income of coconut farmers in the district of Inhil. Based on the results of research conducted by the method of SWOT analysis produced 23 alternative strategies of the development of the SME scale oil processing industry in Kabupaten Inhil ie three strategies from SO, nine strategies from WO, seven strategies from ST, four strategies from WT. Based on the results of the weighting using Analytical Network Process (ANP) on any alternative strategy, Strategy SO-2 namely "Guaranteeing the purchase of products manufactured by the community or the SME by the government and the government must provide the processing industry continued to improve the quality standards that prompted the market to products produced by the community/SME "is a priority under the development strategy of IKM-scale oil processing industry in the District Inhil.
Strategi Perencanaan Jumlah Material Tambahan dalam Memproduksi Semen dengan Pendekatan Taguchi untuk Meminimalkan Biaya Produksi (Study Kasus PT Semen Padang) Nelvi Irawati; Nilda Tri Putri; Alexie Herryandie Bronto Adi
Jurnal Optimasi Sistem Industri Vol. 14 No. 1 (2015): Published in April 2015
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.v14.n1.p176-191.2015

Abstract

Cement is a construction material with a specific quality that must be meet standard requirements and customer requirements. Through a good and continuous quality control, it will produce cement with consistent quality as its Quality Planning. Cement quality is calculated after adding water by measuring its setting time, compressive strength developing, the heat of hydration, expansion/shrinkage, and its durability to environment effect. In cement application, the primary parameter to determine cement quality is its compressive strength. Some factors that affect compressive strength of cement are reactivity and amount of Tricalcium Silicate (C3S) of Clinker, Clinker free lime (free CaO), amount of SO3 in Cement, the amount of additional materials (insoluble residue/IR and loss on ignition/LOI), and sieve on 45 µm residue of cement. This research is intended to find how insoluble residue/IR, loss on ignition/LOI, and the amount of SO3 will affect compressive strength of cement. Various percentages of IR, LOI, and SO3 in cement will result in different compressive strength. Taguchi Method is applied to determine material proportion. With Orthogonal Array calculation for 3 factors and 4 levels, it will result in 16 calculation running times (L16 4**3). In laboratory scale, cement for this research has been being manufactured and then its compressive strength for 3 days, 7 days, and 28 days will be measured. Determination of optimal proportion will be calculated by statistic method for higher compressive strength and lower manufacturing cost.
Perancangan Standar Penilaian Kinerja Pemeliharaan Lampu Jalan Berdasarkan Key Performance Indicators (KPI’s): Studi Kasus di Kota Padang Nilda Tri Putri; Insannul Kamil; Demi Ramadian
Jurnal Optimasi Sistem Industri Vol. 11 No. 2 (2012): Published in October 2012
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1019.94 KB) | DOI: 10.25077/josi.v11.n2.p225-234.2012

Abstract

Sistem transportasi yang baik dan memadai merupakan hal penting yang harus diperhatikan untuk memenuhi kebutuhan pelayanan terhadap keperluan masyarakat dalam menjalankan aktivitasnya setiap hari. Aktivitas transportasi tidak hanya berlangsung pada siang hari, namun juga dilakukan pada malam hari sehingga keberadaan lampu penerangan jalan sangat penting untuk menerangi jalan dan melancarkan kegiatan transportasi tersebut. Saat ini kondisi lampu jalan di Kota Padang banyak yang mengalami kerusakan. Penyebab utama kerusakan lampu jalan adalah tegangan, yaitu beban puncak yang terjadi mulai dari pukul 18.00-23.00 WIB. Berdasarkan hal tersebut, penelitian ini menggunakan Key Performance Indicator (KPI) untuk menghasilkan standar penilaian kinerja dalam melakukan penilaian terhadap pemeliharaan lampu jalan yang ada di kota Padang. Perancangan dimulai dengan mengidentifikasi KPI yang didapatkan dari studi literatur. KPI yang telah didapatkan divalidasi kepada stakeholder untuk mendapatkan KPI yang cocok untuk diterapkan di kota Padang. Setelah itu dilakukan pembobotan KPI melalui perbamdingan berpasangan dengan menggunakan metode AHP.
Co-Authors Abdul Talib, Hayati Habibah Adi, Alexie Herryandie Bronto 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 Desto Jumeno Devi Yulia Rahmi Dicky Fatrias Difana Meilani Dina Rahmayanti Elita Amrina Elsa Eka Putri Elsayed Ali Ismail Elsera, Azira Fitira Elsera, Azira Fitria Eri Wirdianto Fadjar Goembira Fahlevi, Fidruzal Fajar Aristiyanto Fajar Aristiyanto Fandy Triawan Febriano, Raihan Fikri, Ryan Kamal Fitra Lestari Hafiz Rahman, Hafiz Hary Fandeli Hassan, Aslinda Hayati Habibah Abdul Talib Henmaidi Henmaidi Henny Yustisia Herawati, Afriyastuti Hilma Raimona Zadry Huda, Ashila Nurul Ikhwan Arief Ilham Septiadi Indah Kurnia Ramadhani Indrapriyatna, Ahmad Syafruddin Insannul Kamil, Insannul Ismail, Elsayed Ali iswahyuningsih iswahyuningsih Iwan Vanany Jafril Tanjung, Jafril Jamaludin, Khairur Rijal Jonrinaldi Jumeno, Desto Kamil, Insannul Kevin, Muhammad Khairul Ihwan, Khairul Khairur Rijal Jamaludin Kharisman, Arif Kristina, Dian Lestari Setiawati Liesmayani, Elvi Era Linda Eka Putri Liperda, Rahmad Inca 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 Maulana, Ghufran 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 Patrisina, Reinny 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 Wirdianto, Eri Wisnel Wisnel Wisnel Yasra, Refdilzon Yassin, Warusia Mohamed Yesmizarti Muchtiar Yohanna Safari Yosritzal, Yosritzal Yudo Purnomo Yusmar, Fajri Zakuan, Norhayati