The document discusses Hyperion's product suite which includes tools for business intelligence, planning, performance management, and data management. It provides an overview of Essbase, a multidimensional database that allows users to analyze business data from multiple perspectives and levels. Key concepts covered include multidimensional data modeling, OLAP operations for analyzing data (e.g. drill-down, drill-up, slice and dice), and comparing multi-dimensional and relational database approaches.