Data Model Support Distributed System Integration

Data integration is one of the key questions of realizing distributed system integration. Based on the data model, the organization of level and the flexibility of the expression, a spatial integration data model (SIDM) was offered, relationship of data in different type was described, and the characteristic of different item in a data type was described through spatial data model, the conception and algebraic description were afforded in object of spatial data to take a meta-data play, a criterion is advance for algebraic operation of data integration, and data integration of distributed system integration is supported effectively.