1950-1960
Early 1950’s – Meridian Engineers formed and coined the terminology Critical Path Method
1961 – 1970
1967- Meridian Engineering, Inc. Incorporated.
MDC Acquired Meridian and changed the name to MDC Systems Corporation
Capital Project Management Systems (sm) marked.
1970 – Gilbert N. Zitin appointed President of MDC.
Executive Offices were moved to 1845 Walnut Street.
1971 – 1980
President of MDC – James O’Brien (right image)
Day & Zimmeran buys MDC sytems and names John Stetson President (left image)
1981 – 1990
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1991 – 2000
1997 – Robert C. McCue (photo above) buys MDC from Day & Zimmerman and eventually moves operations to Wayne, PA offices location.
2001 – 2009
