Discuss the issue of how the scope of an event system can and should be related to the physical extent of a smart space in which it is used.
What will be an ideal response?
This is a ‘boundary principle’ question. Components in a hotel guest room probably don’t need to know (and shouldn’t know) about events occurring in the guest room next door. However, certain hotel management components hosted elsewhere in the building may have an interest.
One approach would be for events to be propagated by default only to components within the smart space. If necessary, those events could also be relayed to components outside the smart space by a proxy component in the smart space.
But how to ensure that propagation is physically limited in scope? The techniques introduced for physically scoping asociation can all be applied to this case, too.
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____________________ (PAM) provides a centralized mechanism for authenticating services.
Fill in the blank(s) with the appropriate word(s).
An advantage of using information in a database is that _______.
a) the data can be updated in real time b) information that changes need be updated only in one location c) Both a and b. d) None of the above.
A(n) ____ occurs whenever an event listener detects an event trigger and responds by running a method called an event handler.
A. event B. episode C. exploit D. incident
C/C++ developers must do their own memory management using the standard APIs malloc(), alloc(), realloc(), free(), new() and ____.
A. delete() B. remove() C. revoke() D. erase()