A software plant process modeling system operates in multiple modes. The software system uses process unit models. A process unit model includes at least one equation and at least one variable. The software system sets a status of a variable in the unit model to a first state. The first state is associated...http://www.google.fr/patents/US6442515?utm_source=gb-gplus-shareBrevet US6442515 - Process model generation independent of application mode
Process model generation independent of application mode