15.00 - Sources of Data Quality Problems - Teradata Database

Teradata Database Design

Product
Teradata Database
Release Number
15.00
Content Type
User Guide
Publication ID
B035-1094-015K
Language
English (United States)

Sources of Data Quality Problems

Data Warehousing Institute 2002 Survey

The following table reports the results of an industry survey of sources of data quality problems:

 

Source

Percentage

Data entry by employees

76

Changes to source systems

53

Data migration or conversion projects

48

Mixed expectations by users

46

External data

34

System errors

26

Data entry by customers

This includes typographical errors and information typed into the wrong fields made when entering data into forms on the World Wide Web.

25

Other

12

Source: Wayne W. Eckerson, Data Quality and the Bottom Line: Achieving Business Success Through a Commitment to High Quality Data, The Data Warehousing Institute, 2002.