Research on Software Architecture for
Real-Time Metadata Management
Pan Ding,Shen Junyi
(School of Electronics and Information Engineering,Xi'an Jiaotong University,Xi'an 710049,
China)
Abstract:To solve the problem of metadata interoperability and metadata aging in data
warehouse environment,the software architecture for the real-time distributed metadata
management was proposed.By analyzing the schema of metadata management,CWM(common
warehouse meta-model)meta-model specifies the structure and semantics of metadata
integration and exchange based on CWM specification,while XML metadata
interchange(XMI)provides real-time metadata exchanges and mechanism sharing,which results
in that only a corresponding adapter is needed to achieve accessing dynamically the
distributed metadata and integration and effectively avoiding the tedious process of
manual synchronization for each heterogeneous software component.Applying model management
operators,the implementation for schema integration and evolution in the architecture were
discussed.By prototype experiments,all real-time manipulation can be completed within 10
seconds,which verify the feasibility and validity of interoperability and the real time
distributed access under the proposed architecture.
Keywords:metadata;metadata management;data warehouse;model management