Vanuel Bellance

• Business object modeling of data assets for fuel, nuclear production, decommissioning, and waste domains using MEGA HOPEX.
• Facilitating workshops with business units to model processes, structure data assets, and document catalog objects.
• Acculturating Data Owners and providing support on roles, governance, and uses of the internal Astrolable data catalog.
• Structuring governance deliverables in the internal catalog: glossary, quality, documentation, and shared repository.

Context and Challenges

Intervention

• Audit of dependencies between sources, Excel models, VBA macros, Power Query transformations, calculation rules, and restitutions.
• Adaptation of files and automations to the new data environment.
• Creation or strengthening of consistency checks, reconciliations, and audit trails.
• Securing regulatory deliverables related to COREP, Leverage, Large Exposures, and Asset Encumbrance.
• Formalization of evolutions, management rules, points of attention, and maintenance instructions.

Context and Challenges

Intervention

• Scoping of business processes to identify assistable tasks, necessary data, risks, and human validation points.
• Design of AI assistants or agents for information access, decision support, report generation, and response automation.
• Development of Python/FastAPI backends, APIs, PostgreSQL databases, web interfaces, and IS integrations.
• Utilization of ChatGPT, OpenAI Codex, and VS Code to accelerate prototyping, while maintaining a logic of control, testing, and documentation.
• Implementation of safeguards: RAG, MCP, sources used, logging, user feedback, human validation, and response evaluation.
• Industrialization of MVPs: Docker, configuration, testing, security, documentation, and continuous improvement.