Design and Construction of a Web-Based Sales Performance Monitoring Information System for PT Pertamina Gas Negara (Karawang) using Waterfall

Abstract

This research aims to develop a web-based information system for monitoring and recording the performance of outsourced workforce (TAD) in the marketing of Gaskita products at PT Pertamina Gas Negara, Karawang Area. The system is designed to address the limitations of conventional recording methods using paper forms and Excel, which are prone to data loss, require lengthy input times, and lack real-time performance tracking. The development process adopts the Waterfall methodology, consisting of requirement gathering, system design, development, testing, and maintenance stages. The system provides centralized data recording, faster information access, and performance visualization through an interactive dashboard. Black Box Testing confirms that all features function as intended, while the System Usability Scale (SUS) yields an average score of 79, indicating good usability. The implementation of this system improves workflow efficiency, enhances data accuracy, and supports informed decision-making. With further development, it has the potential to integrate advanced analytics and mobile technology to broaden monitoring capabilities and optimize operational performance.