Ephraim R. McLean (born January 7, 1936) is an American organizational theorist, and Regents' Professor (Emeritus) of Information Systems and holder of the G.E.
Smith (GRA) Eminent Scholars' Chair at the J. Mack Robinson College of Business.
Known as one of the founders of the MIS discipline in the 1960s, his work with William H. DeLone on the information systems success model[1][2] is world-renowned.
McLean obtained his BS and MS in Mechanical Engineering in 1958 at Cornell University, his MS in Business Administration in 1967 from Massachusetts Institute of Technology, where in 1970 he also obtained his PhD.
In 1969 he moved to the UCLA Anderson Graduate School of Management, where he founded one of the world's first MIS department.