The Selection Process

Advanced Planning Systems are a relatively new software technology. One of the first Advanced Planning Systems was OPT that was implemented end of the Eighties (Schragenheim and Ronen 1990; Silver et al. 1998). OPT is based on the Theory of Constraints (Goldratt 1990), stipulating that the constraints of a production system have to be represented in detail in a planning system in order to exploit and to control its performance.