Data Quality

The previous chapters define accurate data. They talk about the importance of

data and in particular the importance of accurate data. They describe how

complex the topic really is. You cannot get to accurate data easily. They show

that data can go wrong in a lot of different places. They show that you can

identify much but not all inaccurate data and that you can fix only a small part

of what you find.

Showing improvements in the accuracy of data can be done in the short

term with a respectable payoff. However, getting your databases to very low

levels of inaccuracies and keeping them there is a long-term ...