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Therefore it is by default not possible to run a workflow for a specific location selection. This is only possible when in the workflowdescriptors the option allowSelection is to true. This option should only be set to true when the configurator has checked that the workflow is suitable for running for a specific location.
Steps to follow when implementing selection
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specific calculations
The following steps should be followed when this functionality is implemented.
1) Decide in which situations this functionality is needed
2) Make a list of the workflows which need to run in this type of situations
3) Ensure that the workflow only consists of transformations for which this functionality can be used.
4) Move transformations or other parts of the workflow which are suitable for this type of operations to another workflow
5) Set the option allowSelection to true in the workflow descriptor for the workflow which can be used for selection specific calculations
6) When the workflows will be started from the taskrun dialog of the manual forecast dialog no additional configuration is needed. These displays are available in almost every FEWS system. However when the IFD will be used for this. the following additional steps should be taken.
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