| Summary: | The headwater phenomenon is common in tropical waterfall and upper stream of Johor Eco-Park and threatens the visitors. Prior to that, an IoT system has been developed to issue early warning alert to the eco-park users on headwater risk. This paper presents the first life cyclereport for the early headwater risk system in Gunung Pulai and Gunung Belumut Eco Park. Adapting the spiral development life cycle (SDLC), the system has completed its first completespiral cycle whereas it has been implemented. This first SDLC report consists of four different parts: (i) problem and risk management, (ii) framework, (iii) system development, and (iv) testing and implementation. The alert on the site was triggered by the warning siren at the strategic locations. Simultaneously, the alert was also triggered in the websystem and phone application to the eco-park management and prospective users to prevent fromentering the premises. An auto generated report were also issued to provide potential disaster information for further action from the respective authorities. The developed system is subjected to be improved in the 2nd cycle by addressing several drawbacks including telecommunication signals, noise minimization, and threats from wild animals to the devices. © 2024 Institute of Physics Publishing. All rights reserved.
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