A method and a system propagate a scaling mode in a production process controlled and executed by a manufacturing executing system (MES). The method includes the steps of providing a production request in terms of an initial quantity of a predetermined product to be produced, identifying the predetermined product by a predetermined production rule thereby dividing the production rule in a number of segment requirements that represent production actions, and defining within the segment requirements resources required to produce the required quantity. A rescaling attribute is defined and is aligned with each of the resources in a production request tree. An interface to the MES is used to update the quantity of the predetermined product to be produced and to recalculate in response to the update, the resources required to produce the updated quantity by applying a rescaling factor calculated from the initial quantity and the updated quantity.