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Applications can also implement Jtrix services. Such an application has all the responsibilities of a regular application, plus some additional tasks:
This may be done on- or off-line. If negotation is done on-line, then it is presumably implemented through some kind of negotiation service. Off-line negotiation is presumably done face to face or through the Web, over the telephone, etc, and is out of the scope of this document.
A netlet which implements the service needs to be selected and a descriptor provided. In may cases, the new netlet will need to communicate with the main body of the application in a secure manner.