An order management system is provided. The order management system receives a provisioning order, where the provisioning order includes at least one order line, and where the at least one order line of the provisioning order references a product specification. The order management system transforms the provisioning order into a service order, where the service order includes at least one order line, and where at least one order line of the service order references a customer-facing service specification. The order management system transforms the service order into a technical order, where the technical order includes at least one order line, and where at least one order line of the service order references one of: a resource-facing service specification; or a resource. Thus, the order management system can define a customer-facing service that is not coupled to a technical implementation, nor coupled to a product offering.