se> (MDAC) Microsoft' s umbrella term for their {ActiveX Data Objects} (ADO), {OLE DB}, and {Open Database Connectivity} (ODBC) libraries. Together, these provide access to a variety of data sources, both relational (sQL) and nonrelational. MDAC is the technology that supportsUniversal Data Access, Microsoft' sstrategy for providing access to information across the enterprise. . (2004-02-17)