The doctor is one of the most important things that works to improve sick people. This research proposes to discuss and build a decision system for the selection of the best doctors that can help the selection of the best obgyn doctors using the Fuzzy Tsukamoto method by outlining the code of ethics for medicine, education, service systems, and years of service. The Tsukamoto method is a method that uses membership functions. With this method the optimal solution is sought from certain alternatives and suggestions. In this study, the study conducted research in the Sari Mutiara Lubuk Hospital so that it chose the best doctor on target.
 A. Rosa and M. Saladin. 2014, Structured and Object-Oriented Software Engineering. Bandung Publisher, Informatics.
 Ali Mulyanto, Abdul Haris, 2016. Forerunner of Tsukamoto Fuzzy Method Determines the Number of Ovrtime Hours in Bekasi Goods Production. SIMANTIK Information Journal.
 B. Herawan Hayadi, 2015. Timber Supply System with Fuzzy Tsukamoto. Kom TekInfo Faculty of Computer Science.
 Ghofar Tau Fiq, 2016. Implementation of Fuzzy Resistant Logic for Performance Evaluation Decision Support System Models Karyawan. Pilar Nusa Mandiri Vol xx No.1.
 Irkhamiyati, 2017. Evaluation of Yogyakarta Stikes’A Library Preparation in Building a Digital Library. Periodical Library and Information Science.
 Kusrini, 2014. Decision Support System. Yogyakarta: Andi Publisher.
 Melwin Syafrizal, 2010. Decision Support System. DASI Journal
 Risky Amelia, 2013. Implementation of Tsukamoto Fuzzy Method in Determining the Price of Goods in the Fuzzy Logic Concept. Pelita Informatika Budi Dharma.
 Rita Afyenni, 2014. Designing Data Flow Diagrams for School Information Systems (Case Study in High School Development Laboratory). TEKNOIF Journal.
 Seprida Hanum, 2017. Utilization of Flow Chart Drawing Applications as Teaching Material for Accounting Systems Courses at the Faculty of Economics at Private Universities in the City of Medan. KITABAH Vol 1. No. 1
 Setyoningsih Wibowo, 2015. Application of Fuzzy Logic in Scheduling Lecture Time. UPGRIS Informatics Journal.
 Wira Buana, 2015. Fuzy Application for Cell Phone Selection Decision Support Systems. Journal of Edict Informatics, v2.il (138-143).