The
effectiveness of a data communications system depends on four fundamental
characteristics :-
 |
| Effectiveness of Data Communication System |
1. Delivery :-The system must deliver data to the
correct destination. Data must be received
by the intended device or user and
only by that device or user.
2. Accuracy :- The system must deliver the data accurately. Data that have been altered
in transmission and left uncorrected
are unusable.
3. Timeliness :- The system must deliver data in
a timely manner. Data delivered late are
useless. In the case of video and
audio, timely delivery means delivering data as they
are produced, in the same
order that they are produced, and without significant delay. This
kind of delivery is called real-time transmission.
4. Jitter :- Jitter refers to the variation in
the packet arrival time. It is the uneven delay
in the delivery of audio or video packets.
See Previous Lectures -
DCN | Lecture 1 | Data Communication and its System Components
DCN | Lecture 2 | Basic Block Diagram of Data Communication System
See Previous Lectures -
DCN | Lecture 1 | Data Communication and its System Components
DCN | Lecture 2 | Basic Block Diagram of Data Communication System
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