This document discusses Spring Roo, a rapid application development tool for Java developers. It allows developers to easily build full Java applications in minutes by providing code generation and integration with various Java technologies. The document outlines who Spring Roo is designed for (entrepreneurs), what entrepreneurs need most (productivity), available solutions, how Spring Roo works by monitoring project files and modifying them in response to developer actions, and how to install Spring Roo. It promotes Spring Roo's ability to improve productivity without compromising on programming in Java or IDE support.