The execution sequence of calculations with in a calculation algorithm is automatically determined by the Application Server. I.e. the user does not have to care about the execution sequence for the calculations within an calculation algorithm he just defines the connections between calculations and feature.

Calculations within an calculation algorithm are executed in following sequence: First all calculations that have no input pins, or have input pins that are only connected to features are executed. Execution of all these calculations is done in parallel. After that, whenever one calculation has finished the System checks for calculations that have input pins connected to features and already executed calculations. All the calculations found are then again executed in parallel.