Abstract: A computer-implemented method for providing on-demand manufacturing execution systems for clients in which a response to a questionnaire from a client with information relative to identification of a business and production process, a determination of process steps, and an identification of process step requirements is evaluated by the service provider according to GUI requirements for each one of a number of individual process steps. Based on the evaluation, a GUI is defined for each of the individual process steps by the service provider and provided to the client for installation on client computing devices in a manufacturing line of the client. Data is collected for each of the individual process steps via each GUI and sent to the service provider for storage and evaluation.