Redundancy is data that is not needed or no longer needed. Inconsistency is where you have different data for what should be the same thing, as a result of one piece of data having a few copies and...
There are plenty of technical resources on the Web that discuss cyclic redundancy checks (CRCs). Most times you won't need to worry about this technobabble. That is, until one it day it suddenly...
The hierarchical model divides the data into parents and children with the system working on the principle that each child can have only one parent but each parent can have an infinate number of...