Root causes of most data communication errors
Errors associated with the communication of data, rather than a mechanical failure, are generally due to noise, fading, or distortion.
Communication noise is electrical interference with the signal. It may be background noise or impulse noise, and it may be random or cyclical. Background noise usually has little effect on the transmission of a signal. Impulse noise, such as a sudden voltage surge, is more likely to mask or distort a signal. As long as the noise occurs randomly, it is usually easy to detect an error. Conversely, cyclical noise, such as voltage oscillation, can create compensating errors that are difficult to detect.
Signal fading is a decline in transmission strength. Fading can occur when a signal is transmitted by microwaves. Under certain conditions, the signal picked up by the receiving unit can be quite weak. A weak signal is more susceptible to transmission noise and error.
Signal distortion can result from lack of synchronization between the time datum is sent and the time they are received. Lack of synchronization typically occurs when a signal travels several paths with different delays in each path. This will result in distortion when there is overlapping in the receipt of data from the different signal paths.
Reducing data communication error risk for teleprocessing systems
Teleprocessing is the handling of data through a communications channel, such as telephone lines, microwave towers, or artificial satellites. It permits datum to be posted to files in a second location, with the processing results being printed in a third location.
A major problem created by teleprocessing capabilities is the potential devaluation of information assets based on data communication errors affecting information reliability. Consequently, technology owners must evaluate the ability of teleprocessing systems to resist such data corruption to ensure information asset devaluation is minimized and information reliability is maximized.
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Davis, Robert E. “IT Hardware Risks.” Suite101.com. Retrieved on 10/03/2010
Strangio, Christopher E. “Data Communications Basics: A Brief Introduction to Digital Transfer.” Camiresearch.com. Retrieved on 10/03/2010
Post Note: “Data communications risk in distributed computing” was originally published through Suite101.com under the title “Data Communications Risk in Distributed Computing”