Paper 13099-15
CUBES, the next-generation spectrograph for VLT: a comprehensive MBSE approach to the project development. Focus on requirements management, activities modeling, PBS, and BoM automatic generation
Abstract
Lately, the Italian astronomical community has begun the transition to Model Based System Engineering (MBSE). This tool has been largely applied to the development of the Cassegrain U-Band Efficient Spectrograph (CUBES) designed to provide high instrumental efficiency ( > 37 %) observations in the near UV (305-400 nm requirement, 300-420 nm goal) at a spectral resolving power of R > 20, 000 (with a lower-resolution, skylimited mode of R ≈ 7, 000). Here, MBSE has been used mainly in 3 areas: requirements management, activities modeling, and generation of system structure documents, like the Product Breakdown Structure (PBS) or the Bill of Materials (BoM). Requirements management controls the flow-down process to have a coherent list of requirements. This is achieved using derived properties and tailored numbering. Activities modeling uses traditional MBSE techniques while mimicking the software templates for calibration and observation. To generate structural documents, the system structure is generated in Cameo using the outputs from the subsystems, granting high coherency between the model and the actual design state. The interaction with non-Cameo users relies on Excel files, accessible to all interested parties and usable by Cameo to export and import information.
Presenter
INAF - Osservatorio Astronomico di Brera (Italy)
I am a Ph.D. student of Politecnico di Milano and an associate of the Italian National Institute of Astrophysics (INAF). My Ph.D. research focuses on investigating and defining innovative approaches and methods to apply Model Based System Engineering (MBSE) to the development of astronomical instrumentation.
I graduated in 2019 in Space Engineering in Politecnico di Milano and, after a brief period in the industry when I got to know MBSE, I switched to the research environment with PoliMi and INAF.
Currently, I am focusing on modeling the structure of the systems and of their BoMs and Product Trees, on the definition and verification of system interfaces, on requirements management, and on modeling the system's activities and their allocation to subsystems and other system elements. Another important branch of research focuses on investigating efficient methods to enhance interactions with classic system engineering tools like the Office Suite and other design tools.