Xerox Paris, a document system Support & Software User Guide

Environment File Selection

The next section in the Job Definition Settings dialogue controls the selection of
the environment file to be used for this input source.

Before describing how to use this method of selecting an environment file, it is

useful to review the general methods by which PARIS selects environments.

Method 1

The first method is where the environment is selected by direct call in the
incoming data file. That is, the data file has been preconditioned with either
Xerox DJDE [Dynamic Job Descriptor Events] or PARIS Runtime events.)

This method has two significant advantages.

• 

First, it allows PARIS to provide support for Xerox legacy DJDE
conditioned data streams or LCDS and

• 

Second, it allows the host application to have total control over
PARIS.

Its disadvantage is that it does require the host application to be changed to
insert these special records.

Method 2

The second method is where the environment is selected by conditional
processing abilities in PARIS. An  extensive range of testing abilities in PARIS
enable it to look at the data as it flows into the system and make processing
decisions according to what conditions it finds.

This method, although powerful, needs to be fully understood before it is used
as by its nature it must scan all data coming into the system.

Unless the structure of the data has been fully understood, incorrect
environments could be loaded if it finds a match in a different data file.