Data Silo

A data silo is a collection of data held by one department or system that is not integrated with, or accessible to, the rest of the organization. Silos form when teams use separate tools that do not share data, when organizational incentives discourage data sharing, or when data governance is absent.

Data silos reduce analytical capability: insights that require combining data from two siloed systems require manual data extraction and merging, slowing down decision-making and increasing error risk. They also create compliance risk - PII held in an untracked silo may not be subject to the retention and access controls required by regulations.

Breaking down data silos is a core goal of enterprise data platform initiatives. Centralized data warehouses, shared data catalogs, and standardized APIs between systems are the technical approaches. The harder part is organizational - creating incentives and governance structures that reward data sharing across teams.