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Analisis Pemborosan Menggunakan Waste Assessment Model (WAM) pada Proses Penyediaan Unit pada Distributor Perdagangan Marsudin, Ahmad; Kholil, Muhammad
Industrika : Jurnal Ilmiah Teknik Industri Vol. 9 No. 2 (2025): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/indstrk.v9i2.1706

Abstract

The distribution company for agricultural, construction, and infrastructure equipment is experiencing delays in the supply of units, which can lead to resource depletion and potentially cause customer loss. Supply delays represent a form of waste that must be eliminated. This study aims to identify the causes of the delays using the waste assessment model approach. Data was collected through questionnaires and interviews conducted with assembly supervisors and team leaders. Data processing utilized the waste assessment model, which consists of the waste relationship matrix (WRM) and the waste assessment questionnaire (WAQ). The WRM results indicated a strong correlation between defects, processes, overproduction, and inventory, while the WAQ results showed the largest waste occurred in inventory, motion, and waiting. The highest waste in this study was identified as defects, inventory, and motion. The results of this research are expected to provide effective recommendations to reduce supply delays and improve the company's operational efficiency. Consequently, the company can maintain and even enhance customer satisfaction, as well as optimize the distribution process of agricultural, construction, and infrastructure equipment. Keywords: Distributor, Supply Delays, Waste, WAM
Indonesia HIMPUNAN SOFT FUZZY TRAPESIUM PADA PENGAMBILAN KEPUTUSAN: Fungsi Trapesium Himpunan Fuzzy Soft dalam pengambilan keputusan Kholil, Muhammad
Equiva Journal Vol 2 No 2 (2024):
Publisher : Jurusan Matematika dan Teknologi Informasi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research introduces the concept of trapezoidal fuzzy soft sets as a new approach to decision-making under uncertain conditions. By combining the principles of soft set theory and fuzzy set theory, particularly trapezoidal fuzzy numbers, this concept enables a more objective representation of linguistic judgment. This research defines the basic operations, including complement, “AND,” and “OR,” in trapezoidal fuzzy soft sets and formulates a decision-making algorithm that incorporates weighted normalization and positive/negative ideal fuzzy objects. The approach is applied to Multi-Criteria Decision Making (MCDM) problems under fuzzy conditions, comparing it with traditional methods. Through detailed examples and theoretical proofs, this research demonstrates the advantages of trapezoidal fuzzy soft sets in capturing linguistic ambiguity and improving decision-making accuracy. Translated with DeepL.com (free version)
Analisis Pengaruh Kualitas Konten Promosi Digital, Harga dan Customer Experience Terhadap Purchase Intention Produk Preloved Aguilika, Deykha; Ibrahim, Mozart Malik; Kholil, Muhammad; Violin, Vivid; Ulimaz, Almira
JEMSI (Jurnal Ekonomi, Manajemen, dan Akuntansi) Vol. 11 No. 3 (2025): Juni 2025
Publisher : Sekretariat Pusat Lembaga Komunitas Informasi Teknologi Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/jemsi.v11i3.4117

Abstract

This study aims to analyze the effect of digital promotional content quality, price, and customer experience on purchase intention of preloved products. There is a growing market for pre-owned goods due to the fact that they are both economically beneficial and environmentally friendly. To increase the likelihood that a consumer will make a purchase, digital marketers rely on two factors: the attractiveness of promotional content and the availability of competitive prices and excellent customer service. An online poll was used to collect quantitative data from one hundred people who have shopped for used goods through various marketplaces and social media. Linear regression analyses were performed on the data. The study found that factors such as pricing, customer service, and the quality of digital promotional content significantly impact the inclination to buy used products. In order to enhance their digital marketing tactics, preloved company actors can put these results into practice. By optimizing the visual quality and information of promotional content, setting appropriate prices, and creating a pleasant customer experience, business actors can increase consumer appeal and loyalty to preloved products. This study also opens up opportunities for further research on other factors that can influence purchase intention in the preloved industry.
Implementasi sistem e-MagInd untuk meningkatkan mutu manajemen praktik kerja lapangan kelas unggulan di SMK Adi Sumarmo Husnaini, Azizah Nurul; Sidik, Rasyid; Kholil, Muhammad
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 9, No 5 (2025): September
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v9i5.33976

Abstract

Abstrak Manajemen Praktik Kerja Lapangan (PKL) di SMK Adi Sumarmo masih dilakukan secara manual, mulai dari pendataan siswa, penempatan lokasi PKL, pembuatan laporan PKL, dan pengisian kegiatan harian PKL. Proses manual ini menimbulkan beberapa kendala, seperti lambatnya akses data, potensi kesalahan pencatatan, sulitnya pemantauan kegiatan, menurunnya kedisiplinan, dan rendahnya motivasi siswa. Berdasarkan permasalahan tersebut, pengabdian ini bertujuan untuk menerapkan sistem elektronik magang industri (e-MagInd) guna meningkatkan efisiensi dan mutu manajamen PKL. Proses implementasi sistem tersebut telah melalui beberapa tahapan meliputi analisis kebutuhan, perancangan dan pengembangan sistem, uji kelayakan, serta pelatihan bagi guru dan siswa. Sistem e-MagInd mampu meningkatkan produktivitas, mendukung ketertiban siswa, memudahkan guru dalam membimbing dan memantau kegiatan, serta mengukur capaian ketrampilan siswa. Hasil implementasi memberikan dampak modernisasi dalam pengelolaan data dan dukungan manajemen kegiatan PKL yang berbasis IT di sekolah mitra. Pemanfaatan sistem ini diharapkan dapat mendukung pengelolaan PKL yang berkelanjutan dan menjadi model bagi pengembang sistem serupa di sekolah lain. Kata kunci: E-magind; sistem; teknologi; prakik kerja lapangan; pengabdian. Abstrak The management of internships at SMK Adi Sumarmo is still done manually, from data collection of students, placement of internship locations, creation of internship reports, to filling in daily internship activities. This manual process leads to several issues, such as slow data access, potential recording errors, difficulties monitoring activities, declining discipline, and low student motivation. Based on these issues, this service aims to implement an electronic industrial internship system (e-MagInd) to improve the efficiency and quality of internship management. The implementation process of this system has gone through several stages, including needs analysis, system design and development, feasibility testing, and training for teachers and students. The e-MagInd system can improve productivity, support student discipline, facilitate teachers in guiding and monitoring activities, as well as measure student skill achievements. The results of the implementation provide a modernisation impact on data management and IT-based support for extracurricular management in partner schools. The utilisation of this system is expected to support sustainable internship management and serve as a model for developing similar systems in other schools. Keywords: E-magind; system; technology; internship; community service.
Evaluating DRP Implementation for 3 KG LPG Distribution Efficiency Firdaus, Alfa; Kholil, Muhammad; Riadi, Selamat; Hidayat, Atep Afia; Almahdy, Indra
Journal of Information System, Technology and Engineering Vol. 3 No. 3 (2025): JISTE
Publisher : Yayasan Gema Bina Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61487/jiste.v3i3.186

Abstract

This study evaluates the effectiveness of Distribution Requirements Planning (DRP) integrated with ARIMA time series forecasting to support delivery scheduling decisions and the determination of minimum inventory levels. As a representative case study, a 60-month sales series of Ultra-Pure Water was used to simulate fluctuating retail demand across the agent–depot network. The Augmented Dickey–Fuller test confirmed stationarity (p = 0.0142), allowing candidate ARIMA (p, 0, q) models to be evaluated using ACF/PACF and information criteria. The best model was ARIMA (1,0,1), which had the lowest Akaike Information Criterion and passed diagnostic tests (normal residuals, no autocorrelation, no heteroscedasticity), making it suitable for operational forecasting. Projection results indicated a stable demand pattern and yielded a safety stock threshold of 733.24 units/month (equivalent to 24.44 units/day) as a reference for inventory control. These findings demonstrate that the DRP–ARIMA integration can enhance supply reliability and distribution efficiency, particularly for subsidized goods such as 3 kg LPG, with practical implications for determining adaptive inventory levels, delivery routes and frequency, and upstream–downstream coordination. Theoretically, this study provides additional empirical evidence on the use of quantitative forecasting models to operationalize DRP in the energy sector, while also providing a foundation for replication in other critical commodities.
Improving Surface Finish Quality of Plastic Molds via VSM and DMAIC Integration Kholil, Muhammad; Hidayat, Syarif; Firdaus, Alfa
Journal of Information System, Technology and Engineering Vol. 3 No. 3 (2025): JISTE
Publisher : Yayasan Gema Bina Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61487/jiste.v3i3.187

Abstract

The rapid growth of manufacturing demands continuous process improvement. This study examines a plastic manufacturing company’s Mouldshop, which has not met performance targets an average lead time of 52 days (target 50 days) and a 75% success rate (target 93%) and struggles to achieve the desired surface finish quality of plastic molds. An integrated Value Stream Mapping (VSM) and Six Sigma DMAIC approach is applied to visualize end-to-end process flows (VA/NNVA/NVA), quantify performance gaps, analyze root causes (Fishbone with the 4M Man, Machine, Material, Method), and design improvements. VSM reveals three dominant wastes defects, inappropriate processing, and waiting linked to six critical failure causes spanning operator capability and discipline; overloaded schedules, equipment failures, machining errors, temperature control, and precision instability; material selection and procurement delays; and shortcomings in work- instruction compliance, machining parameters, drawing completeness, and standardized process flow. Using 5W+1H within DMAIC, the study proposes: standardized machining instructions and setup times; preventive- maintenance schedules and checklists; incoming verification with PIC accountability; structured training; mold quality checklists; weekly 5S/5R audits; and Future State Mapping to reduce NNVA/NVA. The integrated DMAIC–VSM roadmap is expected to shorten lead time, raise the value-added ratio, and improve surface finish quality, offering a transferable blueprint for similar manufacturing operations.
IMPLEMENTATION OF KAIZEN TO REDUCE SETUP AND ADJUSTMENT DOWNTIME ON ROTOR PRODUCTS WITH THE DMAIC METHOD Zamzam Zaelani, Mohamad; Kholil, Muhammad
Journal of Management and Innovation Entrepreneurship (JMIE) Vol. 3 No. 1 (2025): Oktober
Publisher : Yayasan Nuraini Ibrahim Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70248/jmie.v3i1.2982

Abstract

In the industrial sector, production process efficiency plays a crucial role in reducing costs and enhancing productivity. This study aims to minimize downtime caused by Setting tool activities on the Rotor machining 5A OP 20 line at an air compressor manufacturing company. The approach combines the continuous improvement philosophy of Kaizen with the structured DMAIC (Define, Measure, Analyze, Improve, Control) methodology from Six Sigma. Data revealed that Setting tool activities contributed to 3.08% of total downtime, exceeding the company's target of 2.00%. Through primary and secondary data collection and quantitative analysis, this research identified several root causes, including suboptimal tool lifetime, inappropriate Cutting Parameters, and the absence of standardized operating procedures. Interventions were carried out by improving tool specifications, developing SOPs, conducting operator training, and visualizing production data. As a result, downtime was reduced by 27.7%, tool lifetime increased by 10%, and estimated Cost Savings reached IDR 41,654,021 .81 per year. Beyond technical achievements, the study demonstrates that cross-functional collaboration and active employee involvement in the Improvement process foster a more efficient, adaptive, and sustainable work culture. The integration of Kaizen principles supported by the DMAIC framework proves to be an effective strategy for enhancing operational efficiency and achieving comprehensive cost reduction in the manufacturing sector.
Application of Sketch Learning: Media 3 Dimensi Berupa Alat Peraga untuk Meningkatkan Minat Belajar Siswa pada Proses Pembelajaran Kholil, Muhammad; Nitasari, Rizki Fitriya
EDUKASIA Jurnal Pendidikan dan Pembelajaran Vol. 4 No. 2 (2023): Edukasia: Jurnal Pendidikan dan Pembelajaran
Publisher : LP. Ma'arif Janggan Magetan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62775/edukasia.v4i2.704

Abstract

This research discusses the use of 3-dimensional teaching aids in the context of learning butterfly metamorphosis for grade 2 students at the MI Institute. Ihyaul Islam. The aim of the research is to determine the application of 3-dimensional sketch learning media in the form of teaching aids to increase student interest in learning. Through qualitative methods with a case study approach, data was obtained from observations, conducting interviews with school principals, teachers and students, as well as documentation of the learning process. The research results show that the use of 3-dimensional teaching aids significantly increases students' interest in learning. This media facilitates a better understanding of the concept of butterfly metamorphosis, improves students' memory, and stimulates active involvement in learning. Thus, the use of 3-dimensional teaching aids is considered important in creating an interesting, interactive and effective learning atmosphere for students in understanding science material. These findings have positive implications for the quality of learning, encouraging students' interest in learning, stimulating active involvement in the educational process, and making the learning atmosphere in the classroom more enjoyable and less boring.
Role Of Parenting Dalam Menanggulangi Digresi Gadget Pada Anak Kholil, Muhammad; Rozi, Fathor; Azizah, Ella Shofiatun
Jurnal Ilmiah Mandala Education (JIME) Vol 9, No 2 (2023): Jurnal Ilmiah Mandala Education (April)
Publisher : Lembaga Penelitian dan Pendidikan Mandala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58258/jime.v9i2.4988

Abstract

The purpose of this study was to describe the role of parents in responding to gadgets and their implicit behavior towards children in Pakistaji village, Wonoasih sub-district, Probolinggo city with continuous control and orgrib Koran organizations (GMM) as shields for children. deviant behavior in children. The method used is descriptive qualitative with a case study type approach. Data collection was carried out through observation, interviews, and supported by documentation. This research was conducted in Pakistaji Village, Wonoasih District, Probolinggo City. The subjects in the study were parents and some children who depend on gadgets. The results of this study are the following: The frequency of using gadgets needs to be limited. Children don't need too many gadgets, because the most important thing is that children can use them and know how to use them optimally. Excessive intensity of using gadgets can trigger irregularities. The role of parents in responding to the use of gadgets in their children is very important. This is done so that children do not abuse their parents' trust in them. The attitude that needs to be shown is to accompany children when playing gadgets and parents must be able to operate them. As for the consequences if parents do not supervise the use of gadgets on their children, then their children will engage in deviant behavior. Forms of deviation in the form of attitudes and speech that are not good. Usually in the form of erotic attitudes and dirty words.The purpose of this study was to describe the role of parents in responding to gadgets and their implicit behavior towards children in Pakistaji village, Wonoasih sub-district, Probolinggo city with continuous control and orgrib Koran organizations (GMM) as shields for children. deviant behavior in children. The method used is descriptive qualitative with a case study type approach. Data collection was carried out through observation, interviews, and supported by documentation. This research was conducted in Pakistaji Village, Wonoasih District, Probolinggo City. The subjects in the study were parents and some children who depend on gadgets. The results of this study are the following: The frequency of using gadgets needs to be limited. Children don't need too many gadgets, because the most important thing is that children can use them and know how to use them optimally. Excessive intensity of using gadgets can trigger irregularities. The role of parents in responding to the use of gadgets in their children is very important. This is done so that children do not abuse their parents' trust in them. The attitude that needs to be shown is to accompany children when playing gadgets and parents must be able to operate them. As for the consequences if parents do not supervise the use of gadgets on their children, then their children will engage in deviant behavior. Forms of deviation in the form of attitudes and speech that are not good. Usually in the form of erotic attitudes and dirty words. 
FEMINISME DAN TINJAUAN KRITIS TERHADAP KONSEP GENDER DALAM STUDY ISLAM Kholil, Muhammad
Jurnal Al-Ulum : Jurnal Pemikiran dan Penelitian Ke-Islaman Vol 3 No 1 (2016): Jurnal al- Ulum: Jurnal Pemikiran dan Penelitian ke-Islaman
Publisher : Universitas Islam Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (606.027 KB) | DOI: 10.31102/alulum.3.1.2016.116-128

Abstract

Feminism is an effort gender justice requires us to make the rules fair, but gender equality does not require us to give a prize to the winner and the loser between men and women. Gender equality has become a necessity of the times. Issues these women are very regard to violence against women, sexual harassment, wage discrimination and women's rights in the workplace or a dual role as the nature of women. Some people think women with a view of ignorance before Islam came, so they do not give inheritance rights to her daughter and did not even get a part at all. They also memingitnya not work outside the home, they even ban women only weeks to study so that they assume that women who sholehah are women who never leave the house, and that means they have prevented the women to get the light of science. Yet they know that seeking knowledge is obligatory for the Muslims either male or female. Women are partners of men who were created by God with the abilities and the mental equivalent. Most of the women's movement stopped in the middle and are crossroads juaga whereas women are entitled to a space in the activity. The image of the ideal woman in the Quran is not the same as the ideal image that developed in the history of the world.