The text discusses the application of graph databases in master data management (MDM), enabling a rich, multi-dimensional view of entities across domains and business units. It highlights the importance of finding a balance between storing data in the graph and leaving it solely in enterprise systems to minimize costs. The CAP theorem is mentioned as a framework for designing architectures that prioritize consistency, availability, or partition tolerance. Spectrum Data Federation is introduced as a solution that allows businesses to define logical views of data, map them to physical sources, and publish virtual data sources for use throughout the system. This enables agility in managing data, with the ability to seamlessly integrate federated data with graph databases. The text also explores the challenges associated with getting a project off the ground and the flexibility offered by designing a hybrid system from the perspective of the CAP theorem. Ultimately, it suggests that finding the right balance between storing data in the graph and linking it virtually to federated data is crucial for success.