The KeepTool 6 family gathers together three Oracle productivity tools, each addressing a specific purpose and available separately. But each of the three products—Hora, ER Diagrammer and PL/SQL Debugger—is also designed to work with the other two, and shares a common design philosophy. Our goal is to make our products easy and intuitive to use. KeepTool 6 is enhanced many times each year to enhance its existing functionality and to incorporate new features of the Oracle database.