s be useful. 
 
Verdict: Shuffle rules are best used on large tables and leave the look and feel of the 
data intact. They are fast and relatively simple to implement since no new data needs 
to be found, but great care must be taken to use a sophisticated algorithm to 
randomise the shuffling of the rows. 
 
 
Technique: Number Variance 
 
The Number Variance technique is useful on numeric data. Simply put, the algorithm 
involves modifying each number value in a column by some random percentage of its 
re