<![CDATA[Food and beverage micro, small, and medium-sized enterprises (MSMEs) often keep sales data separate from the information required to manage ingredients, suppliers, employees, payroll, and reports. This study aimed to design and evaluate TRANSARA. This mobile point-of-sale artifact links sales transactions to recipe-based ingredient inventory and selected back-office records in the operational setting at Teras Senja. A case study based on design science methodology integrated the development of an artifact, technical and black-box functional validation, task-based mentoring, operational observation, user feedback, and documentation review. The user evaluation included three participants: one business owner and two staff members. 48 pre-defined black-box indicators were used for additional validation, covering installation, authentication, business access, master data, transactions, stock and recipe functions, workforce and payroll, reporting, synchronization, role controls, external devices, and device compatibility. All 48 indicators met their expected results, achieving 100 percent (48 out of 48). All 10 operational aspects were completed at the recorded mentoring checkpoint: six independently and four with assistance; none were marked as incomplete. After a sale, the central mechanism deducts specified quantities of ingredients from the product recipe or bill of materials and retains the resulting information for stock monitoring and managerial review. The study contributes a design pattern within this single-business case, in which a POS transaction serves as a cross-functional operational trigger, and broader usability, scalability, inventory accuracy, and long-term business effects necessitate multi-site and longitudinal validation.]]>
