Methods and apparatus, including computer program products, implementing and using techniques for orchestrating a business process in a computer network. A script describing a business process is received from a client machine over the computer network. The script is compiled into executable program instructions. A reference to the script and data to be operated on by the script is received from the client machine over the computer network. The data is processed in accordance with the script. The result of the data processing is returned to the client machine over the computer network.