This document provides an overview of Oracle's two main OLAP solutions: Oracle's Hyperion Essbase and the Oracle Database OLAP Option. While both provide core OLAP capabilities like dimensional modeling and calculations, they differ in their intended purposes, buyers, users, and data management strategies. The document outlines these differences and provides case studies to help understand which product is best suited for a given application. It concludes that both products are strategic for Oracle and will continue to be developed and supported.