Automating processes in an automation platform. Specifying a program that when executed by the platform implements the process. The program including process description, process components. The description including component initialization instructions having input parameter(s) and initialized component execution instructions having an execution state. Components having an initialization interface, an execution interface, and at least one of simulation instructions and operation instructions. Components characterized by output parameters, and operative upon receiving input parameters via the initialization interface to initialize the component. Initialized components operative upon receiving an execution state via the execution interface to execute the initialized component in accordance with the execution state, and in absence of operation instructions, to return a simulated output in the format of the output parameters in accordance with the simulation instructions. Executing the instructions by initializing each component in accordance with the component initialization instructions, executing each initialized component in accordance with the instructions.