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The involvement of the community in the development of a web-based photo ordering application using the waterfall method aims to improve customer service during the online photo ordering process. The background of this community service is based on the difficulties faced by the public in practically ordering photos. The main goal of this community service is to develop an application that simplifies the ordering process. The development method used is the waterfall method, which includes analysis, system design, implementation, testing, and maintenance. The results of this application development include the results of each development stage with the waterfall method, implementation results, and the main conclusion of this community service.    

The oil fuel stock monitoring system (BBM) is becoming crucial to the management of valuable energy assets. The aim of the author is to conduct an effective system analysis and development to monitor BBM stocks. The research uses prototyping methods, which include the following steps: identification of initial needs, initial prototype making, evaluation and feedback, improvement and development, final implementation, and final evaluation. An easy-to-understand user interface design and an efficient database structure are important components of system design. Web-based software development is part of the system implementation. The testing process is carried out to ensure the performance, reliability, and security of the system. The system is regularlyined to remain functional and relevant. It is expected that the results of this practice will make a significant contribution in improving the efficiency and accuracy of monitoring BBM stocks. Moreover, these results will provide the basis for similar system development in the future.