On 3/13/19 1:15 PM, Stephen M. Butler wrote:
> Also remember that data is only as reliable as that which is entered. 
> The third law of thermodynamics states it only gets worse over time.

A database rule I encountered and seems to be true is a corrolary to GI-GO:

A databbase's data are only good if the people entering the data are
those that are going to use it. If you have rooms full of bored clerks
typing it in on terminals, who have no idea what it means, and could not
care less, the data will be bad to begin with. And, as you said, its
entropy will only increase.

I remember a database of telephone directory entries that someone had
run a program on to improve it.

One entry was TOYS R US that got corrected to TOYS R UNITED STATES


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