Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Open Platform for Robotic Services (OPRoS) is an open source platform based on components. It provides an Integrated Development Environment (IDE) for developing components and monitoring robots, a robot framework for controlling the components in the robot and managing their faults, a simulator for simulation of components and contents, a server for managing the component repository and agents for execution of the proxy services instead of the components in the robot, and a test and evaluation system for components, contents, and developed SW. Especially, The IDE consists of a component editor, a block editor, and a script editor. The source code will be open on August 2009.