1. A method implemented by a computing device of a particular system, the method comprising: receiving, by the computing device, an order to be modeled as a workflow; creating, by the computing device, a particular system workflow based on the order; providing, by the computing device, the particular system workflow to at least one application programming interface (API) associated with the particular system; receiving, by the computing and via the at least one API, a workflow associated with another system; combining, by the computing device, the particular system workflow with the other system workflow to create a combined workflow; and enabling, by the computing device, a user device to access, via the particular system, one or more of the combined workflow, the particular system workflow, and the other system workflow.