On Using SysML, DoDAF 2.0 and UPDM to Model the Architecture for the NOAA's Joint Polar Satellite System (JPSS) Ground System (GS)

The JPSS Ground System is a flexible system of systems responsible for telemetry, tracking & command (TT&C), data acquisition, routing and data processing services for a varied fleet of satellites to support weather prediction, modeling and climate modeling. To assist in this engineering effort, architecture modeling tools are being employed to translate the former NPOESS baseline to the new JPSS baseline. The paper will focus on the methodology for the system engineering process and the use of these architecture modeling tools within that process. The Department of Defense Architecture Framework version 2.0 (DoDAF 2.0) viewpoints and views that are being used to describe the JPSS GS architecture are discussed. The Unified Profile for DoDAF and MODAF (UPDM) and Systems Modeling Language (SysML), as provided by extensions to the MagicDraw UML modeling tool, are used to develop the diagrams and tables that make up the architecture model. The model development process and structure are discussed, examples are shown, and details of handling the complexities of a large System of Systems (SoS), such as the JPSS GS, with an equally complex modeling tool, are described.