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With rising accumulation of data and applications in enterprise IT environment, the business data management becomes increasingly important. But the data in the IT environment is usually organized by static modeling, which could not meet the business changes need. In our study the enterprise ontology is adopted as conception backbone to model for the business scenario, and the use of ontology evolution can reflect the business process changes. So we explore the data mode mapping and the modeling of enterprise ontology. Then the analysis of changes derived from application requirement is forced specially. Finally, the changes realization enables the whole evolution process to be implemented. The prototype system has been developed now in order to fulfill the application. It can help connect the data and business, and obtain business changes to direct the ontology evolution. As there are an increasing research and application tendency in the field of business data modeling and ontology evolution, our study pay more attention to the modeling, mapping and analysis between dynamic business changes and ontology.