Let's try to use all our jargon in one paragraph...
Jtrix nodes span several machines, and offer services to netlets including hosting. When a node hosts a netlet it needs to load and bind it. This is achieved by virtue of the netlet's descriptor which includes its code (or a reference to it) and any initialisation object it needs. Services are also offered through netlets for other (client) netlets, but a client netlet cannot bind to a service without a warrant to do so. Services may be delivered through service advertisement services, after having been placed there by their creators. An external netlet is one with a special link to the outside world and the node; it is usually the system administrator's interface onto the node, and the one which originally booted it. Jnode is an external netlet for Nodality, which adds communication and resource management.
If you can follow that then we are ready to go.
Nik Silver 2002-03-09