Eliyahu Moshe Goldratt (Hebrew: אליהו משה גולדרט; March 31, 1947 – June 11, 2011) was an Israeli business management guru. He was the originator of the Optimized Production Technique, the Theory of Constraints (TOC), the Thinking Processes, Drum-Buffer-Rope, Critical Chain Project Management (CCPM) and other TOC derived tools. He was the author of several business novels and non-fiction works, mainly on the application of the theory of constraints to various manufacturing, engineering, and other business processes. The processes are typically modeled as resource flows, the constraints typically represent limits on flows. In his book The Goal, the protagonist is a manager in charge of a troubled manufacturing operation.
