This document provides an overview and guide to Oracle Applications 11i. It begins with introductions to the author and the purpose of the material. The document then provides a table of contents outlining the chapters. It uses a scenario about a stationary shop to demonstrate how businesses grow and the need for enterprise systems. It identifies key entities in businesses like customers, inventory, and vendors. It also outlines some common Oracle Applications modules like inventory, purchasing, order management, and financials. Finally, it defines some common Oracle Applications technical terms.