Indonesian Journal of Electrical Engineering and Computer Science Vol. 39, No. 1, July 2025, pp. 485~496 ISSN: 2502-4752, DOI: 10.11591/ijeecs.v39.i1.pp485-496  485 Journal homepage: http://ijeecs.iaescore.com Geographic information system for marine ecotourism and rural lifestyle in Prachuap Khiri Khan Sompond Puengsom, Jakkapong Polpong, Phisit Pornpongtechavanich Department of Information Technology, Faculty of Industry and Technology, Rajamangala University of Technology Rattanakosin Wang Klai Kangwon Campus, Prachuap Khiri Khan, Thailand Article Info ABSTRACT Article history: Received Jun 5, 2024 Revised Mar 1, 2025 Accepted Mar 26, 2025 According to the Prachuap Khiri Khan Province tourism statistics report for 2023, there were 11,143,079 Thai and foreign tourists from January to December 2023, which increased by 1,395,195 people or 14.31 percent compared to 2022. Simultaneously, tourist attractions accumulated tourism income in 2023 totaling 44,241 million baht, marking an increase of 11,402.63 million baht or 34.72 percent from 2022. Despite this growth, tourist attractions that are popular with tourists remain centered in Hua Hin District due to a lack of publicity and insufficient information provided to tourists. Consequently, the researcher intended to develop a geographic information system (GIS) for marine ecotourism and rural lifestyles in Prachuap Khiri Khan Province to promote rural tourist attractions and distribute tourism income to the community. The system utilized the classification (precision and recall) model and was developed using ArcGIS and the web app builder ArcGIS. Findings from 8 experts in computers, information technology (IT), and GIS indicated that the overall system efficiency had an average of 4.54 and a standard deviation of 0.50. Additionally, results from the study on retrieval efficiency using the classification (precision and recall) model revealed a precision value of 0.90 and a recall value of 0.95. Keywords: GIS Marine ecotourism Rural lifestyle ecotourism SDLC Tourism This is an open access article under the CC BY-SA license. Corresponding Author: Phisit Pornpongtechavanich Department of Information Technology, Faculty of Industry and Technology Rajamangala University of Technology Rattanakosin Wang Klai Kangwon Campus Phet Kasem Rd, Tambon Nong Kae, Amphoe Hua Hin, Chang Wat Prachuap Khiri Khan 77110, Thailand Email: Phisit.kha@rmutr.ac.th 1. INTRODUCTION In terms of advancements in technology and the economy, tourism must be focused first because the majority of the population uses technology together with tourism to find tourist attractions. Thailand ’s use of technology for tourism has ranked among the top in the world and has become an industry of great importance to the world’s economic system. It is widely acknowledged that the tourist business has risen swiftly in practically every country to become a vital product in the international trade system [1]. Many countries consider tourism to be one of their most significant sectors. From a social point of view, tourism is a sort of relaxation that relieves stress while building understanding between visitors and residents. The tourism industry has prioritized eco-tourism in both nature and culture. The researcher studied and analyzed tourism problems from the Prachuap Khiri Khan Province statistical report 2023. From the Prachuap Khiri Khan Statistics Office presented tourism statistics of Prachuap Khiri Khan Province during January to December 2023, there were 11,143,079 tourists. It can be divided into 10,656,168 Thai tourists and 486,911 foreign tourists, which increased from 2022 to 1,395,195 tourists or 14.31 percent. Total tourism income in