Agricultural prime mover

An agricultural prime mover, such as a tractor, may be used to execute an agricultural work process. The agricultural prime mover includes work assemblies that can be adjusted with machine parameters, and can be coupled to an attachment for processing a field. The agricultural prime mover includes a control and regulation module that optimizes the work assemblies by ascertaining machine parameters for the work assemblies using optimization data with respect to at least one objective. The control and regulation module executes a multi-step optimization strategy, including a first step "at the farm" directed to optimizing a basic configuration of the agricultural prime mover, a second step "at the field" directed to optimizing an attachment-specific configuration of the agricultural prime mover, and a third step "in the field" directed to optimizing the adaptation of the basic configuration and the attachment-specific configuration while processing the field.