Home > Process Modeling and Simulation Concepts > Attributes > Attribute Values
Without specific initial value assignments, attributes are initialized depending on their type. Value attributes are initialized to zero, True/False attributes are initialized to False, Yes/No attributes are initialized to No, and member attributes are initialized to the first member in the member list.
Some ways to set attribute values are:
Set the initial value of a global attribute as a constant or expression when you first define the attribute.
Set the initial value for a transaction attribute on a generator (typically transaction attributes).
Set or change the value of any attribute within an activity using the Properties dialog box - Attributes page. You can set the attribute’s value at various points as the transaction is being processed at the activity.
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