This document discusses how Orbitz is using Hadoop to store and process large amounts of log and transaction data in a scalable and cost-effective way. It outlines how Hadoop enables applications like recommendations, page performance tracking, and user segmentation. The goal is to integrate Hadoop with their existing enterprise data warehouse to provide a unified view of data and leverage existing business intelligence tools. Examples of processing pipelines and use cases for web analytics, beta, and click data are provided.