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A forecasting shell server is a computer which carries out tasks on behalf of the master controller (for example the running of external models such as ISIS) and forms part of the online system.
Localdatastore
A localdatastore is..local datastore is a database (typically Microsoft Access or Firebird) which holds stores data which has been imported to fews and is held on the local file system.
Operator client
An operator client is a mode in FEWS can be used whereby the FEWS operator logs in to an online system which then syncronises with your local interface (operator client). Tasks allocated by the operator client are then sent to the online system for processing.