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The parameter values can be:
*input – this defines data that is coming from the Presentation Layer into the Webroutine.
*output – this defines data that is going from the Webroutine to the Presentation Layer.
*both – this defines data that comes into the Webroutine from the Presentation Layer and is sent from the Webroutine to the Presentation Layer.
The fourth value, *none is described in 1.4.3 Being Stateless.
Say you had a Webroutine whose job it was to accept a Department Code as input and then to output a Department Description. The specification of its Web Maps would look like this:
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