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All Journal SPEKTRUM INDUSTRI JURNAL PASTI (PENELITIAN DAN APLIKASI SISTEM DAN TEKNIK INDUSTRI) Jurnal Teknovasi : Jurnal Teknik dan Inovasi Mesin Otomotif, Komputer, Industri dan Elektronika ACCRUALS (Accounting Research Journal of Sutaatmadja) GERVASI: Jurnal Pengabdian kepada Masyarakat Industri Inovatif : Jurnal Teknik Industri Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Dinasti International Journal of Economics, Finance & Accounting (DIJEFA) Jurnal Inovasi Masyarakat Jurnal Ilmiah MEA (Manajemen, Ekonomi, dan Akuntansi) Jurnal Logic: Logistics & Supply Chain Center VISA: Journal of Vision and Ideas Serambi Engineering Spektrum Industri
Didit Damur Rochman
Fakultas Teknik, Program Studi Teknik Industri, Universitas Widyatama Bandung
Aerospace Engineering Agriculture, Biological Sciences & Forestry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Public Health Social Sciences Transportation Other

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SOSIALISASI PENENTUAN HARGA POKOK PRODUKSI BERAS ORGANIK DAN USAHA MIKRO, KECIL DAN MENENGAH DESA CIKURUBUK SUMEDANG Ihsan, Tiaradia; Rochman, Didit Damur; Anwar, Asep; Ferdian, Rendiyatna
GERVASI: Jurnal Pengabdian kepada Masyarakat Vol. 9 No. 1 (2025): GERVASI: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM IKIP PGRI Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31571/gervasi.v9i1.8517

Abstract

Salah satu permasalahan utama yang dihadapi oleh UMKM di Desa Cikurubuk adalah ketidaktahuan dalam menentukan harga jual yang sesuai, karena belum memahami konsep Harga Pokok Produksi (HPP). Kondisi ini menjadi tantangan, terutama ketika mitra berupa kelompok tani dan UMKM sedang mengembangkan produk beras organik serta memperbaiki kualitas, kemasan, dan strategi pemasaran. Melalui kegiatan pengabdian kepada masyarakat, tim dari Prodi Teknik Industri Universitas Widyatama memberikan pelatihan dan sosialisasi mengenai perhitungan HPP guna membantu mitra menentukan harga jual produk secara tepat. Metode yang digunakan adalah pelatihan partisipatif dan pendampingan langsung di lokasi usaha. Hasil kegiatan menunjukkan bahwa mitra mampu memahami dan menyusun perhitungan HPP serta mulai menerapkannya dalam penetapan harga jual produk. Simpulan dari kegiatan ini adalah sosialisasi yang dilakukan berhasil meningkatkan kemampuan mitra dalam menetapkan harga secara rasional, sehingga diharapkan dapat menunjang keberlangsungan dan daya saing usaha mereka.
Analisis Waste pada Line Production Liquid Produk Sucralfate PT X dengan Menggunakan Pendekatan Value Stream Mapping Rahmatiin, Nisaa Fatwa; Rochman, Didit Damur
VISA: Journal of Vision and Ideas Vol. 5 No. 2 (2025): Journal of Vision and Ideas (VISA)
Publisher : IAI Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/visa.v5i2.7389

Abstract

PT X is a pharmaceutical company that produces Sucralfate, an important pharmaceutical product requiring an efficient production process to meet market demand. This study aims to identify and address bottlenecks in the Sucralfate production line using Value Stream Mapping (VSM), Process Activity Mapping (PAM), and Waste Assessment Model (WAM) techniques. The Current State Map analysis reveals significant bottlenecks in the change over and documentation processes, primarily due to numerous Non-Value Added (NVA) activities. WAM identifies the primary waste as waiting, with a percentage of 26.30%, contributing to delays and increased lead time in production. To address these issues, several improvement suggestions have been formulated. For the dispensing stage, the implementation of an automated measurement system with integrated digital scales is proposed to enhance efficiency and accuracy. For the filling stage, it is recommended to replace the nozzle and add components to the hopper cap to reduce setup and repair time. The mixing process will also be optimized by adding an additional mixing tank and implementing batch campaigns to reduce waiting time between processes. Additionally, improvements to the documentation system by transitioning to a digital ERP-integrated system are proposed to accelerate QC verification and reduce waiting time. Although the Future State Map has not yet demonstrated a significant reduction in inventory or lead time, it is anticipated that the proposed improvements will significantly reduce NVA activities, leading to a positive impact on inventory reduction and increased efficiency in the Sucralfate production line at PT X.
M-Health Service Quality Analysis of Kimia Farma Mobile Application on Google Play Store Using Sentiment Analysis and Topic Modeling Methods Suhendro, Fanji Hari; Rochman, Didit Damur
Dinasti International Journal of Economics, Finance & Accounting Vol. 6 No. 5 (2025): Dinasti International Journal of Economics, Finance & Accounting (November - De
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijefa.v6i5.5176

Abstract

Digital Transformation in the pharmaceutical industry grew rapidly, accelerated by the COVID-19 pandemic, leading to a surge in mobile healthcare service transactions. Kimia Farma Mobile, initiated by PT Kimia Farma Apotek, is a m-health application that provided medicine purchase, consultation, and laboratory services. However, the Kimia Farma Mobile application had a lower rating than its competitors. This study aimed to analyze user satisfaction and dissatisfaction levels based on Google Play Store reviews to understand the root causes of its low rating. Utilizing sentiment analysis, reviews were classified into positive and negative polarities. Latent Dirichlet Allocation (LDA) was then used to identify key factors influencing satisfaction and dissatisfaction within the M-Health Service Quality framework. The Support Vector Machine (SVM) method was chosen for its high accuracy, yielding an F1-score of 97.39%. The results showed that positive reviews were primarily driven by ease of use and helped users in providing optimal services. In contrast, negative reviews were linked to issues in Information Quality, Interaction Quality, and System Quality. This study concludes by providing specific recommendations to improve the application's service quality, operational systems, and overall user experience to enhance satisfaction and boost its rating.
PENINGKATAN PRODUKTIVITAS SPINNING MELALUI PERANCANGAN ALAT CLEANING DRAFTING ROLL MODEL BARU PADA MESIN RING SPINNING Supriatna, Nandang; Rochman, Didit Damur
Jurnal Ilmiah Manajemen, Ekonomi, & Akuntansi (MEA) Vol 9 No 1 (2025): Edisi Januari - April 2025
Publisher : LPPM STIE Muhammadiah Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31955/mea.v9i1.4902

Abstract

Perancangan alat cleaning drafting roll model baru pada mesin ring spinning, guna meningkatkan efektivitas dan efisiensi kerja karyawan di PT Danar Mas-2, merupakan tujuan dari penelitian ini proses pembersihan area drafting roll yang dilakukan secara manual menggunakan bambu kilik terbukti kurang efektif dan efisien, sehingga diperlukan inovasi dalam bentuk alat baru yang mampu menyelesaikan tugas ini dengan lebih baik. Pengumpulan informasi awal, perancangan alat, pengembangan alat, pengetesan awal, perbaikan rancangan alat, pengetesan di produksi dan evaluasi keefektifan alat, ini semua merupakan diantaranya beberapa tahapan yang harus dijalankan pada penelitian ini. Uji coba dilakukan pada mesin Ring Spinning Frame dengan pengambilan sampel cleaning area 100 spindle per orang. Effisiensi kerja karyawan dan dampak alat terhadap kualitas benang yang dihasilkan diukur dan dianalisa menggunakan dua data yaitu quantitave analysis serta qualitative analysis. Hasil penelitian menunjukkan bahwa alat cleaning drafting roll model baru yang berbasis pneumatik ini dapat meningkatkan efisiensi kerja karyawan dan memberikan dampak positif terhadap kualitas produksi benang. Kontribusi secara efektif untuk perusahaan dalam meningkatkan jumlah produksi dan kualitas yang dihasilkan merupakan salah satu alasan sehingga alat ini rancang.
Perancangan Ulang Tata Letak Pabrik untuk Minimasi Jarak Perpindahan Material Menggunakan Algoritma Genetika di PT JKL Ihsan, Tiaradia; Ferdian, Rendiyatna; Rochman, Didit Damur; Anwar, Asep
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.v17i3.007

Abstract

PT JKL merupakan produsen jamu dengan berbagai jenis sediaan yang mempunyai misi untuk memproduksi dan mendistribusikan produknya secara luas di Indonesia. Dalam aktivitas produksi didapati bahwa perpindahan material yang terjadi di proses produksi PT JKL cukup panjang. Jarak perpindahan material saat ini sebesar 1902,875 meter, kondisi ini disebabkan banyaknya departemen yang saling berjauhan dan berdampak pada tidak tercapainya target produksi. Penelitian ini melakukan perancangan ulang tata letak pabrik PT JKL dengan menggunakan algoritma genetika, dengan tujuan untuk minimasi total jarak tempuh perpindahan material. Algoritma genetika bekerja dengan cara bergerak dari satu populasi ke populasi lain untuk mencari nilai optimal dengan tiga tahapan utama yaitu seleksi, crossover, dan mutasi. Berdasarkan hasil perhitungan yang telah dilakukan, perancangan ulang dengan menggunakan algortima genetika berhasil meningkatkan efisiensi perpindahan material sebesar 18,62% dan memberikan penambahan lokasi gudang barang jadi sebagai tempat penyimpanan barang untuk meminimalisir terjadinya kerusakan barang selama proses penyimpanan.
Fuzzy-FMECA: Right Solution for Jet Dyeing Machine Damage Prevention Ihsan, Tiaradia; Rochman, Didit Damur; Ferdian, Rendiyatna
Spektrum Industri Vol. 22 No. 2 (2024): Spektrum Industri - October 2024
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v22i2.204

Abstract

Jet dyeing machines, essential for producing high-quality and environmentally friendly textiles, face persistent issues with defects that lead to production stoppages, compromised cloth quality, and significant financial losses for companies. These challenges hinder operational efficiency and undermine the competitive edge of textile manufacturers in a rapidly evolving market. Jet Dyeing machines continue to innovate to produce high quality and environmentally friendly textiles, with the discovery of defects causing cloth production to stop, cloth quality to decline, and company losses. The Fuzzy-FMECA approach enhances accuracy and adaptability in identifying failure risks, improving maintenance for complex jet dyeing systems. This study aims to identify the root causes of jet dyeing machine damage for preventive maintenance design. Studies using robust fuzzy-FMECA can identify critical components of jet dyeing machines with a high degree of accuracy. This can improve machine reliability and reduce fabric quality failures. The dominant machine failures identified in jet dyeing components are leakage, short circuits, and installation errors. The Pareto analysis shows that leaks, tears, and short circuits are responsible for over 70% of total failures. The most critical components include the main pump and electric socket, both with an RPN score of 7.42, representing a significant 30% of overall risk. Other high-risk components such as the steam pipe packing and heat exchanger steam pipe also have an RPN of 7.25. These findings indicate that over 60% of the failures arise from just a few key components. These findings have succeeded in identifying the critical components of the jet dyeing machine (main pump and socket) which have the highest potential risk of failure. The proposed preventive maintenance design can reduce these risks, but needs to be refined with consistent, competent and monitored inspections. The preventive maintenance design significantly mitigates risks, requiring ongoing refinement through regular, skilled, and supervised inspections to ensure optimal effectiveness.
Co-Authors Akbar, Muhammad Ridlan Aliman Nazwa, Rizki Annisa Maharani Anwar, Asep ARIEF RAHMANA, ARIEF Asep Anwar Ima Ratnasari Maulana, Muhammad Rizki Rahmatiin, Nisaa Fatwa Rendiyatna Ferdian Silvia Apriandani Suhendro, Fanji Hari Supriatna, Nandang Suyono, Annisa Maharani Tiaradia Ihsan