: In this thesis Max-Plus Algebra is discussed. This is an algebraic structure which is useful for modelling scheduling problems. Instead of normal addition and multiplication respectively the operations maximum and addition are used. Together with max-plus algebra another modelling method is described: Heaps of Pieces. This looks like Tetris and is used for the same purpose. Knowing about these methods the main example is introduced: supply chain scheduling for oiltankers. The two methods described earlier are used to find a solution for this problem. Lastly, using simulated data results are produced and explained.