Portals eNewsletters Web Seminars dataWarehouse.com DM Review Magazine
DM Review | Covering Business Intelligence, Integration & Analytics
   Covering Business Intelligence, Integration & Analytics Advanced Search
advertisement

RESOURCE PORTALS
View all Portals

WEB SEMINARS
Scheduled Events
Archived Events

RESEARCH VAULT
White Paper Library

CAREERZONE
View Job Listings
Post a job

Advertisement

INFORMATION CENTER
DM Review Home
Newsletters
Current Magazine Issue
Magazine Archives
Online Columnists
Ask the Experts
Industry News
Search DM Review

GENERAL RESOURCES
Bookstore
Buyer's Guide
Glossary
Industry Events Calendar
Monthly Product Guides
Software Demo Lab
Vendor Listings

DM REVIEW
About Us
Press Releases
Awards
Advertising/Media Kit
Reprints
Magazine Subscriptions
Editorial Calendar
Contact Us
Customer Service

Ask the Experts Question and Answer

Ask the Expert

Meet the Experts
Ask a Question (Names of individuals and companies will not be used.)
Question Archive
Ask the Experts Home

Q:

If a given DW field/element/column can be updated from several operational sources, it would seem that the risk of erroneous data is heightened. Is this true and if so is there an authoritative source that I can quote?

A:

Clay Rehm?s Answer: This certainly is true. As far as an authoritative source, I am not sure I can find one. In the field of DW it is just "common sense." If a field/element/column is updated from only one operational source, there is still a risk of erroneous data. Was there testing done by the business community in the extract, transform and load? Was quality assurance performed on the process that copies that data?

(Posted )


ARCHIVE OF QUESTIONS & ANSWERS FOR DATA QUALITY
BACK TO THE LIST OF CATEGORIES



Advertisement
advertisement
Site Map Terms of Use Privacy Policy
SourceMedia (c) 2005 DM Review and SourceMedia, Inc. All rights reserved.
Use, duplication, or sale of this service, or data contained herein, is strictly prohibited.