[MOBY-l] Parameters for services

[bgulden at purdue.edu]

Is there any way to determine dynamically the parameters that a given service
can take?  For example, if I have a service that can run blastp or blastn, could
I have a parameter that would determine which one to run or would they be better
described as two entirely different services?  Also, a blast service could have
other options that could be set.  Would those options be placed in the "input"
section of the service description?
Thanks for any help,
Brian Gulden