Process Instance Arrival Rates
Arrival rates for process instances specify how many process instances of the
corresponding process definition will be created in a specific interval.
Specifying Arrival Rate Distributions
Arrival rate distributions for process instances can be specified by three
different curves in the properties page Simulation > Arrival Distribution
in the property dialog for process definitions:
- The Arrival Rate specified the total, long-term daily arrival
rate. The slider value is interpreted as percentage. This means
to get the actual availability value you have to multiply the percentage value divided by
100 with the value displayed in the diagram.
- The Calendar specifies whether process instances
are created at a specific calendar date. This way you can model interruptions
on weekends or other holidays. The slider represents the actual value.
- The Daily Distribution describes how the process instances
specified with the arrival rate are created over the day. Using this parameter
you can specify daily peeks, e.g. at beginning of business. The slider
represents the actual value.
Long-term arrival rate, calendar-based arrival distribution and
daily distribution are multiplied to obtain the resulting arrival
rate, whereby the calendar-based values and daily distribution are relative
values. The daily distribution is always adjusted to an integral value of 100%.
For details on the modification of the arrival rate curves see
Working With Curves.