Collaborative Model-Based Engineering and Large Systems Development | ESA | Capella Days 2023

Presented by Catherine Morlet and Alberto González from the European Space Agency. The slides of the presentation are available right here: https://mbse-capella.org/resources/pd... *** This presentation reports on the collaborative Model-Based System Engineering (MBSE) approach followed for Galileo Second Generation using Team4Capella. We address the choices made and methodology applied in Phase B of the system design activity in the past years, with a team spread in different companies’ and geographically distributed. We address the handling of branches of model at different security classification levels with an approach based on synchronising branches rather than split of a large model that makes it suitable for parallel development thus compatible with schedule/time-keeping constraint of the project. Overall, there is a need of rigorous methodology to facilitate synchronisation activities, to have common development approaches including terminology/nomenclature to identify relevant classified items (functions, exchange item, scenarios, etc.), and to document/textualized the information allowing for automatic and frequent generation of the design documentation. In large projects, team members are involved in different roles, thus implying “rules” as well on who is acting on a part of a model. But also, some may be focused on review/supervision of the model which implies the need for means for commenting models rather than developing. Instead of exporting (e.g. in word documents) we expect that tools such as “Publication for Capella” would help enlarging the users of MBSE within the team. Another area under investigation is the collaboration across teams to ensure digital continuity throughout the disciplines or sub-systems. We are starting to use the system-to-subsystem transition plugin with the aim to maintain interfaces between sub-systems and specification of each subsystem, and apportion some engineering parameters between subsystems thanks to a model. Direct interaction at model level is expected, and, through synchronisation mechanisms, integrate at the system level the outcomes from the subsystems in a form of a federated model. *** References: Embarking to end-to-end system modelling for Galileo Second Generation presented at MBSE2022 in Toulouse *** Stay up to date on Capella news and events by following our socials here: Website: https://www.eclipse.org/capella/ LinkedIn :   / capella-mbse-tool   Capella Forum: https://forum.mbse-capella.org/ *** Chapters: 0:00 - Intro and Outline 1:30 - Galileo and its complexity 6:09 - Collaborative end-to-end system design including security levels 17:03 - Collaboration among stakeholders 27:39 - Concluding remarks 34:23 - Q&A: Can Capella be used to asses change options for complex system? 35:15 - Q&A: Do you use other tools along with Capella to manage requirements? 36:40 - Q&A: How did you managed all the interfaces? 38:00 - Q&A: Have you worked with external team using SysXML? 39:53 - Q&A: Questions concerning the internal and external teams. 44:41 - Q&A: Why you choose to use Capella? 46:40 - Outro