Customized articles of footwear are produced by defining options that can be selected by a customer when submitting a custom order. These options typically include model options, functional options, and aesthetic options. These options are created by a design source, such as a shoe designer within a particular market, and presented to the customer when making the order. Upon a customer selecting one or more of the options at a user interface, the selected options are converted to specifications associated with the order. A work-load engine is employed to generate, based on the specifications, a work order that includes a dataflow for selecting appropriate stations on a manufacturing floor to participate in a manufacturing process, and a workflow for instructing each of the appropriate stations to perform a sequence of operations, within the manufacturing process, that result in fabricating individual components of the article of footwear according to the order.