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Variable maps are used by the context service to create the property sets that are used by PSP Procedures. You specify the variable maps used by a PSP procedure in the Parameters list applet of the Administration - Order Management screen, then the Signals view.
NOTE: Certain methods of the Context Service business service include variable map arguments for these definitions. See Variable Map Methods of the Context Service Business Service.
The PSP procedure is independent of the calling context. Most order management signals invoke the PSP Driver Workflow Process (shown in Figure 12), which is a generic controller workflow. The controller workflow uses variable maps to construct inputs for the PSP procedure. Those variable maps are defined in the signal that invokes the controller workflow.
Signal parameters define the scope of line items retrieved using the variable map, and they define the variable maps used to retrieve Context and Row Set data. Figure 11 shows example signal parameters.
Figure 12 shows the PSP Driver Workflow Process, which is a generic example of a controller workflow. PSP Driver Workflow Process uses variable maps to retrieve data that is then synchronized back to the database.
As shown in Figure 12, the PSP Driver Workflow Process steps perform as follows:
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