Part grouping in ELSP

The economic lot scheduling problem has been investigated extensively in the literature over the years. A comprehensive review until 1976 can be founded in Elmaghraby (1978), who reviews various approaches to the problem and divides these into two categories; analytical approaches that achieve the optimum for a restricted version of the original problem; and heuristic approaches that achieve ‘‘good’’ solutions for the original problem and more recent work in Silver et al., (1998).