Data associations in BPMN diagrams have data inputs or
outputs that connect to the input or output specification of an activity
or global task. A data association can have a data object, data store,
process data input, or process data output as its source.
Before you begin
You must have a data object, data store, process data input
or output and a task or activity in your diagram that have a data
association between them.
About this task
The data association property section is used to define a
From and
To Expression to create
an assignment for the data association. For each element specified,
the
From Expression is evaluated to get the
source value. The
To Expression is evaluated
to assign the target element. The target element can be any element
in the context or a sub-element of it, for example a data object.
The source value is copied to the target element. The
From and
To Expression can be any valid expression
like a XPath expression that evaluates to the required value. Once
the
To Expression and
From Expressions are defined, the item definitions at the source and
target of the data association are not required to be the same.
