Chris Rayner enhanced the rosetta-models/common-domain-model repository by introducing a scope attribute to the Valuation type, enabling more granular context for valuation data. This work involved designing and implementing the ValuationScopeEnum, which distinguishes between collateral and trade scopes, thereby supporting improved reporting and analytics. Chris applied domain modeling expertise and schema evolution techniques to ensure backward compatibility and maintainability. The changes laid a foundation for scope-based reporting across products, addressing the need for clearer valuation context. Throughout the project, Chris demonstrated strong Git hygiene and a thoughtful approach to extending the Rosetta language model without introducing breaking changes or regressions.