Technology Infusion of SAVE into the Ground Software Development Process for NASA Missions at JHU/APL

The JHU/APL Space Department develops Missions Operations Center (MOC) system software for all JHU/APL-supported NASA missions using a shared architecture called Common Ground. The architecture is 10 years old and difficult to maintain for current missions and to evolve for reuse in future missions. The Software Architecture Visualization and Evaluation (SAVE) tool and process developed by Fraunhofer Center -Maryland has been applied to preserve the Common Ground architectural goals in order to avoid further maintenance and evolution problems. This report summarizes JHU/APL's experiences in using the SAVE tool and process to capture the originally planned architecture, to compare the actual Common Ground software to the plan, to create a new target architecture, and to guide ongoing development to bring the planned and actual architectures into alignment.