A big data transformation is evolving apace in government agencies across the United States, and federal organizations will soon join the movement as the historic Data Act has just cleared a major milestone. Teradata Corp. (NYSE: TDC), the analytic data platforms, marketing applications and services company, announced today that supporters of the legislation will gather one week from today, April 29, for the inaugural Data Transparency Summit at Union Market in Washington, sponsored by the Data Transparency Coalition.