An information silo is an insular management system incapable of reciprocal operation with other, related information systems.

Information silo occurs whenever a data system is incompatible or not integrated with other data systems. This incompatibility may occur in the technical architecture, in the application architecture, or in the data architecture of any data system. However, since it has been shown that established data modeling methods are the root cause of the data integration problem, most data systems are at least incompatible in the data architecture layer.