Password Reset

Please enter your e-mail address. You will receive a new password via e-mail.

The Book

Upon finishing the book, you will understand data warehousing, business intelligence and analytics.


The Author

David Haertzen is a seasoned data warehouse architect and data scientist.

Achieving improved customer service and business results are a driving passion with David and his team.


Free Templates

Jump start your data warehouse and business intelligence with free template downloads.

Project plans, business case template, data warehouse architecture and numerous examples will streamline your efforts.


Hello Data Warehousing and BI Fans!

This website is the companion to the book, The Analytical Puzzle: Profitable Data Warehousing, Business Intelligence
and Analytics

You will be able to download templates and checklists to better manage your data warehouses.