Michael Schagen developed an SVD schema extension for the Amsterdam/amsterdam-schema repository, introducing the bedrijfsonroerendgoed scope to support commercial real estate properties within the Stelsel van Dienstverleners framework. He focused on precise data modeling and schema definition using JSON, ensuring the new scope aligned with existing data contracts and framework conventions. By minimizing the surface area of changes, Michael reduced integration risk and facilitated adoption across dependent services. His work enhanced the schema’s capability to represent commercial property data, enabling improved downstream analytics and data quality. The project demonstrated careful schema design, Git-based change management, and effective cross-team collaboration.