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All Journal JISI UMJ (Jurnal Integrasi Sistem Industri UMJ) Jurnal Pengabdian UntukMu NegeRI JATI UNIK : Jurnal Ilmiah Teknik dan Manajemen Industri Seminar Nasional Teknologi Informasi Komunikasi dan Industri JURNAL PHOTON Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Surya Teknika Journal of Industial Engineering and Technology Jurnal Ilmiah Cano Ekonomos RENATA Jurnal Pengabdian Masyarakat Kita Semua Spektrum Industri
Dedi Dermawan, Dedi
Program Studi Teknik Industri, Fakultas Teknik, Universitas Muhammadiyah Riau
Religion Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Physics Social Sciences Other

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Cost Model of Activity Oriented Municipal Solid Waste Management: Integration of Activity Based Costing/Management and Causal Loop Diagram Dermawan, Dedi; Mulyadi, Agus; Wardana, Sajidi
Spektrum Industri Vol. 23 No. 2 (2025): Spektrum Industri - October 2025
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v23i2.445

Abstract

The increasing generation of municipal solid waste (MSW) in Pekanbaru, a densely populated city in Riau Province, has led to higher waste management costs. In 2023, the city generated 1,011 tons of waste daily, with management costs reaching around IDR 93 billion. Traditional cost calculation methods are often inaccurate, failing to account for the activities involved in MSW management. This study develops an activity-based cost management model using Activity-Based Costing/Management (ABC/M) to map costs to specific waste management activities, combined with Causal Loop Diagrams (CLD) to analyze activity relationships and formulate a mathematical cost model. The application of ABC/M identified four primary waste management activities: collection, transportation, processing, and disposal. The results show a total waste management cost of approximately IDR 91 billion, with CLD revealing dynamics such as the impact of incentives on recycling rates and the balancing effects of transportation and waste bank usage on waste generation. This study contributes provides a novel cost model for municipal waste management, offering both theoretical and practical contributions for improving cost efficiency and resource allocation.
Peningkatan Kualiatas Pelayanan Menggunakan Metode Quality Function Deployment (QFD) (Studi Kasus: Perpustakaan Universitas Muhammadiyah Riau) Dedi Dermawan; Muhammad Qurthuby; Denur Denur; Hendri Ali Ardi; Misral Misral; Japri Japri; Ayu Lestari
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 3 (2026): July
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i3.59751

Abstract

The library, as an academic information center, is required to provide quality services to enhance user satisfaction. This study aims to analyze and improve the quality of library services using the Quality Function Deployment (QFD) method. A total of 99 respondents, consisting of active library users, were involved through the distribution of questionnaires. The data were analyzed using the Importance Performance Analysis (IPA) method to identify priority attributes, which were then translated into the House of Quality (HOQ) matrix. The results show that aspects such as service speed, availability of updated collections, and internet network stability are the main focuses for improvement. The proposed recommendations include enhancing the collection management system, optimizing digital services, and providing staff training to improve responsiveness and empathy toward users.
Co-Authors Afdal Afdal, Afdal Afrianto Roicandra Silaban Agus Mulyadi Andivas, Marulan Ari Andriyas Puji Ayu Lestari Danu Firmansyah Denny Astrie Anggraini, Denny Astrie Denur Denur Denur Denur Denur Denur Denur Denur Denur Faradila Ananda Yul, Faradila Ananda Fira Putri Aldiyanti Harits, Dimaz Hendri Ali Ardi, Hendri Ali Irwan Anwar Japri - Japri - Japri Japri Japri Lukman Jumali, Denur lukas sirait Meirizha, St Nova Misral Misral Misral Misral muhammad arief budiman Muhammad Qurthuby Mulyadi, Agus N Nelfiyanti Nurzen, Muhammad Qayyum bin Basri, Azizul Rozar Rayendra Ruhil, Zainul Satriardi Satriardi Satriardi Satriardi Satriardi Sri Lestari Syafril Syafril Thoriq, Eaden Ahmed Viona Aulia Rahmi Vivi Engraini Wahyu Hidayah Wardana, Sajidi Yudistirani, Sri Anastasia Zayyinul Hayati Zen Zayyinul Hayati Zen Zen, Azizah Zulkifli