Using model based systems engineering and the systems modeling language to develop space mission area architectures

Abstract

Model based systems engineering (MBSE) is explored as an alternative to the Department of Defense (DoD)s heavily document-driven processes for architecture development and acquisition management. MBSE can be employed to meet the standards set in the DoD acquisition framework. Data exchange specifications, such as the application protocol 233 (AP233), can be implemented to enable synergistic benefits to data analysis across the enterprise. Architecture development techniques, including the structured analysis and design technique and the systems modeling language (SysML), are introduced to aid in the development and assessment of space system mission area architectures, enabling rigorous mathematical analysis to support key programmatic decisions. A detailed example of the application of SysML, in conjunction with MBSE principles, is provided for the Overhead Persistent Infrared mission area, specifically the Space Based Infrared Surveillance System. A three-phase adoption approach is recommended: first identify, list, and manage the configuration of all critical program models, processes, and tools used throughout the DoD. Second, mandate a data exchange specification, such as the International Organization for Standardization (10303 AP233 standard, across the DoD space acquisition community. Finally, further standardize the implementation of MBSE practices through implementation of SysML. Heuristics for developing system architecture are provided.