The idea of a Material Flow Simulator that integrates economic and ecological perspectives is based on a combination of Discrete Event Simulation with Material Flow Analysis. Material Flow Analysis and Discrete Event Simulation are combined into an integrated modelling software environment, which allows us to ask questions like:

• Can we save energy if we buy a new machine without changing throughput?
• Can we increase the utilization of a machine by changing the production process without increasing waste accumulation or energy demand?
• Can we produce more wafers without buying more lacquer and in compliance with legal limits on solvent emissions?

Analysing Perspective

Modeling Perspective