The Materials Data Management Consortium (MDMC) comprises members of the U.S. aerospace industry who have joined forces to develop software systems to manage their in-house materials data. Current members are ASM International, Granta Design, NASA-Glenn Research Center, NASA-Marshall Space Flight Center, Naval Surface Warfare Center, Pechiney Rolled Products, Rolls Royce, Secat Inc., U.S. Army Research Laboratory, Westmoreland Mechanical Testing and Williams International. Battelle Memorial Institute is an observer on the committee, to provide a liaison with the MIL-HDBK-5 steering group. Regular meetings will allow member organizations to review progress, provide feedback and refine specifications of the data management system.