The genesis of this book began in 2012. Hadoop was being explored in mainstream
organizations, and we believed that information architecture was about to be
transformed. For many years, business intelligence and analytics solutions had centered
on the enterprise data warehouse and data marts, and on the best practices for defining,
populating, and analyzing the data in them. Optimal relational database design for
structured data and managing the database had become the focus of many of these
efforts. However, we saw that focus was changing