Book Image

The Data Warehouse Toolkit - Third Edition

By : Ralph Kimball, Margy Ross
5 (2)
Book Image

The Data Warehouse Toolkit - Third Edition

5 (2)
By: Ralph Kimball, Margy Ross

Overview of this book

The volume of data continues to grow as warehouses are populated with increasingly atomic data and updated with greater frequency. Dimensional modeling has become the most widely accepted approach for presenting information in data warehouse and business intelligence (DW/BI) systems. The goal of this book is to provide a one-stop shop for dimensional modeling techniques. The book is authored by Ralph Kimball and Margy Ross, known worldwide as educators, consultants, and influential thought leaders in data warehousing and business intelligence. The book begins with a primer on data warehousing, business intelligence, and dimensional modeling, and you’ll explore more than 75-dimensional modeling techniques and patterns. Then you’ll understand dimension tables in-depth to get a good grip on retailing and moved towards the topics of inventory. Moving ahead, you’ll learn how to use this book for procurement, order management, accounting, customer relationship management, and many more business sectors. By the end of this book, you’ll be able to gather all the essential knowledge, practices, and patterns for designing dimensional models.
Table of Contents (31 chapters)
Free Chapter
1
Cover
2
Title Page
3
Copyright
4
About the Authors
5
Credits
6
Acknowledgements
29
Index
30
Advertisement
31
End User License Agreement

Profitability Across Channels Including Web

After the DW/BI team successfully implements the initial clickstream fact tables and ties them to the sales transaction and customer communication business processes, the team may be ready to tackle the most challenging subject area of all: web profitability.

You can tackle web profitability as an extension of the sales transaction process. Fundamentally, you are allocating all the activity and infrastructure costs down to each sales transaction. You could, as an alternative, try to build web profitability on top of the clickstream, but this would involve an even more controversial allocation process in which you allocate costs down to each session. It would be hard to assign activity and infrastructure costs to a session that has no obvious product involvement and leads to no immediate sale.

A big benefit of extending the sales transaction fact table is that you get a view of profitability across all your sales channels, not just the web. In...