The Belgian User Support and Operations Centre (B.USOC) has been successfully operating the Columbus external payload SOLAR for four years. This paper describes the evolution of the SOLAR Mission Tool from its origin to its future, focusing on the different development phases, and the positive impact that the tool had on quality assurance and process management. From a rudimentary set of Excel tools which merged and coupled different databases, and with the premise of facilitating the operator's life with a simple and clear interface, B.USOC has been able to considerably improve the quality of the day-to-day operations, planning and reporting activities. The tool is capable of extracting information from very different sources and presenting it visually to the operator. The success of this tool and the openness of the operations team to constructive changes, were influenced by the care that was applied during the development phase to the integration with the day-to-day operations. The effort and time invested on this long-term mission have resulted in a complete tool which assures the quality, facilitates the daily tasks, prepares valuable reports, and provides the operator and all other stakeholders with an extensive overview of the past, present, and future activities of the payload.