Data Quality

PREFACE

This book is about

data accuracy.

Data accuracy is part of the larger topic of

data quality. The quality of data is measured against a number of dimensions:

accuracy, relevance, timeliness, completeness, trust, and accessibility. The

accuracy dimension is the foundation measure of the quality of data. If the

data is just not right, the other dimensions are of little importance.

The book has many goals. The first is to demonstrate and characterize the

data quality problem that affects all large organizations. Hopefully it will

increase awareness of problems and help motivate corporations to spend more

dollars ...