Analyzes application data requirements and develops conceptual and logical models of the data as a prerequisite for physical database design. Creates and maintains meta data in data model dictionaries. Participates in the data modeling in support of mainframe, client-server or web systems development, translating data requirements into entity relationship diagrams, and analyzing existing databases through reverse engineering. Assists in providing data element naming consistent with standards and conventions and ensures that data dictionaries are maintained across multiple database environments (mainframe, distributed systems). Ensures data content/quality by planning and conducting data warehouse system tests, monitoring test results and taking required corrective action. Acts as a liaison