In steelmaking, the important criteria for production management are compliance with the specified chemical composition and minimizing energy consumption, while maintaining the metallurgical conditions for achieving process temperature control. To achieve multi-criterial optimisation of these different and partly conflicting parameters, BFI has developed a model that adapts itself dynamically as the melt progresses through the process route. Its target function consists in the assessment of energy consumption and the costs of the alloying agents used, while the description of processes involved in the production chain, including their sequencing and interactions, are reflected in the auxiliary conditions along with all product and equipment-related constraints.