US Patent 10114736 Virtual service data set generation

A virtual service is instantiated from a service model that is operable to receive requests intended for a particular one of a plurality of software components in a system and generate simulated responses of the particular software component based on a service model modeling responses of the particular software component. A particular request is identified that has been redirected to the virtual service. A size of a data set for inclusion in a simulated response of the virtual service to the particular request is determined based on a size value in the particular request. The data set is generated using the virtual service according to the size value and the simulated response that includes the data set is sent to the other software component in response to the particular request.