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From "Verma, Rishi (317I)" <Rishi.Ve...@jpl.nasa.gov>
Subject When to use CAS-PGE
Date Tue, 27 Sep 2011 20:32:13 GMT
Hi All,

This is something I have been wondering myself, and perhaps other CAS-Workflow users have
been wondering as well so I thought I'd put this question out there.

The question is: in which circumstances does it make sense to use PGEs for representing workflow
tasks? In other words, which types of situations favor wrapping a workflow task as a PGETaskInstance
versus using the generic WorkflowTaskInstance?

Based on my own experience with CAS-PGE, I feel it makes sense to go for using PGEs for the
following types of situations:
[1] Extensive use of external programs is required for the execution of a workflow task
[2] Gathering products from, or ingesting products to the CAS-FileManager is needed for the
execution of a workflow task

If there are other types of circumstances using PGEs is ideal for or if there are other opinions
out there, it would be great to hear them!

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