## Version 3.1

• Added functions failoverStream and failoverProcessor to model servers with failures (temporary cancellation of the process with the further repairing of the server).

• Added functions joinStream and joinProcessor to simplify the modeling of servers.

• Checking the argument, i.e. time period, in the holdProcess function. It must not be negative.

• The taskProcess computation behaves exactly like the background process, i.e. now its cancellation leads to immediate cancelling the background process too.

• Functions setStateActivation, setStateDeactivation and setStateTransition are redefined as the Event computations instead of Simulation computations.

• Refactored and simplified module Results.