Vol. 11 No. 1 June 2020 ComTechComTech Computer, Mathematics and Engineering Applications P-ISSN: 2087-1244 E-ISSN: 2476-907X Editor in Chief Evaristus Didik Madyatmadja Bina Nusantara University, Indonesia Managing Editors Supria Bina Nusantara University, Indonesia Nico Surantha Bina Nusantara University, Indonesia Nurlina Bina Nusantara University, Indonesia International Editor Board Agustinus Oey Korea Advanced Institute of Science and Technology (KAIST), Republic of Korea Dase Hunaefi Free University of Bozen-Bolzano, Italy Kiyota Hashimoto PSU Phuket, Thailand Daniel M. Wonohadidjojo Ciputra University, Indonesia Eddy Wiyanto Krida Wacana Christian University, Indonesia Gisela Nina Sevani Krida Wacana Christian University, Indonesia Humiras Hardi Purba Mercu Buana University, Indonesia Leon Andretti Abdillah Bina Darma University, Indonesia Rino Nugroho Sebelas Maret University, Indonesia Tati Nurhayati Bogor Agricultural Institute, Indonesia Zulkardi Sriwijaya University, Indonesia Fergyanto E. Gunawan Bina Nusantara University, Indonesia Firza Utama Bina Nusantara University, Indonesia Ingrid Suryanti Surono Bina Nusantara University, Indonesia Irpan Hidayat Bina Nusantara University, Indonesia Lukas Siswanto Tanutama Bina Nusantara University, Indonesia Rinda Hedwig Bina Nusantara University, Indonesia Tota Pirdo Kasih Bina Nusantara University, Indonesia Tri Pudjadi Bina Nusantara University, Indonesia Wikaria Gazali Bina Nusantara University, Indonesia Language and Layout Editor Eka Yanti Pangputri Bina Nusantara University, Indonesia Dina Nurfitria Bina Nusantara University, Indonesia Shavira Sarashita Bina Nusantara University, Indonesia Atmawati Bina Nusantara University, Indonesia Holil Bina Nusantara University, Indonesia Secretariat Dewi Novianti Bina Nusantara University, Indonesia Description ComTech is a semiannual journal, published in, June and December. ComTech focuses on various issues spanning in Information Systems, Architecture, Civil Engineering, Computer Engineering, Industrial Engineering, Food Technology, Computer Science, Mathematics, and Statistics. ComTech has been accredited by DIKTI under the decree number 3/E/KPT/2019 (SINTA 2) and indexed by CrossRef, ASEAN Citation Index, Directory of Open Access Journals (DOAJ), Science and Technology Index 2 (SINTA2), Garda Rujukan Digital (Garuda), Microsoft Academic Search, Google Scholar, Academic Resource Index (ResearchBib) and Indonesian Research Repository (Neliti). Research and Technology Transfer Office, Bina Nusantara University, Anggrek Campus, Jl.Kebon Jeruk Raya 27, Kebon Jeruk, Jakarta Barat 11530, Tel. +621-5350660 ext. 1705/1708, Fax.+621-5300244, E-mail: comtech@binus.edu, Url: https://journal.binus.ac.id/index.php/comtech, FB: https://www. facebook.com/ComTechBinus Vol. 11 No. 1 June 2020 TABLE OF CONTENTS Aprilia Eka Saputri, Nina Sevani, Fajar Saputra, and Richardo Kusuma Sali Using Certainty Factor Method to Handle Uncertain Condition in Hepatitis Diagnosis....................... ............ 1-10 Choesnul Jaqin, Ahmad Rozak, and Humiras Hardi Purba Quality Function Deployment for Quality Performance Analysis in Indonesian Automotive Company for Engine Manufacturing....................... ................................................................................... 11-18 Oki Setyandito, Aldo Christanto Purnama, Nur Yuwono, Juliastuti, and Yureana Wijayanti Shoreline Change with Groin Coastal Protection Structure at North Java Beach....................... .................. 19-28 Adrian Dicky Lukiman and Richard Analytical Hierarchy Process (AHP), Economic Order Quantity (EOQ), and Reorder Point (ROP) in Inventory Management System....................... ......................................................................................... 29-34 Humiras Hardi Purba, Sunadi, Suhendra, and Else Paulina The Application of Quality Function Deployment in Car Seat Industry...................................................... 35-42 Budi Irawan Saleh, Choirul Anwar, Rusman Zaenal Abidin, and Aris Setyo Radyawanto Analytical Hierarchy Process for Enhancing Procurement Decision-Making in Project Phase: A Case Study in the Gold Mining Project....................... ................................................................. 43-56 ComTechComTech Computer, Mathematics and Engineering Applications P-ISSN: 2087-1244 E-ISSN: 2476-907X