An EASI procedure can use parameters to specify input. In this case, the parameters must be set by the user before the procedure is executed. Pre-defined system parameters may be used, or new parameters may be created specially for the use of the procedure.
Since parameters are globally defined, there is no need for formal parameter passing to procedures. However, to improve ease of use, procedures can be made to generate status reports which are displayed when the status of a procedure is requested. Status reports are useful in allowing the user of a procedure to check which parameters are used so they can be set before the procedure is run. It is up to the writer of the procedure to check the values of the parameters when the procedure is executed to ensure they are valid.
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