<![CDATA[FA Playground is a children's play-area business located in Tembilahan City. Sales transaction records and bookkeeping at this business are still carried out conventionally, which frequently causes customer-data duplication, damaged or lost vouchers, and difficulty for cashiers in tracing customer transaction history. This research aims to design and build a web-based cashier information system equipped with a royalty feature, which grants customers a bonus play session after reaching a certain number of visits, in order to increase customer retention. The system development method used is the Waterfall model, with the requirement-analysis stage using the PIECES (Performance, Information, Economics, Control, Efficiency, Service) approach, system design using the Unified Modeling Language (UML), implementation using the PHP programming language and MySQL database, and testing using the black-box method covering functionality and usability aspects. The functionality test on 37 system functions involving 10 respondents showed a success rate of 100% (X=1), while the usability test obtained a feasibility percentage of 96.86%, which falls into the very good category. Thus, this web-based cashier information system with a royalty feature has proven capable of speeding up the transaction process, reducing customer-data duplication, securing voucher data, and simplifying bookkeeping and sales reporting at FA Playground.]]>
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