Push and pull strategies in multi-echelon assembly systems

In convergent multi-stage systems usually a pull strategy is assumed, where demand at the end stock-point triggers demands (or production) at the proceeding stock-point, whereas in the push strategy demand is triggered at the initial stock-point. We will extensively describe the calculation procedure for the push strategy. For analyzing the pull strategy we will use existing methods. The equivalence and differences between these two strategies will be illustrated for a two-stage assembly case