When an optimization is started, RAM Concept automatically creates a local scenario folder to store the results of the optimization. RAM Concept also saves a copy of the Concept (.cpt) file in the scenario folder along with the scenario data. This model is referred to as the "scenario model." This behavior is to ensure consistency between the Concept file and any optimization data stored with it. The scenario model represents a snapshot of the model at the point in time that the optimization was run. The original model, referred to as the "base model," is not affected by this behavior and can be modified after an optimization is run. Any number of optimizations (which create associated scenario models) can be generated from a single base model. When viewing the optimization manager with a base model open, the scenario table will show all optimizations that were started with that base model. If you select any scenario and choose "load scenario model," it will open the scenario model associated with that scenario. The scenario model will also be automatically loaded when loading any trial from the Trials table. This will close the base model (after prompting to save any unsaved changes that have been made). You can make changes to a scenario model, but the changes cannot be saved as that would corrupt the scenario model. Any changes made to a scenario model will be discarded without warning when loading any other trial or loading the base model. It is possible to "save as" any changes to a scenario model and choose a different file name. Once a scenario model is loaded, it is possible to navigate back to the base model it was created from by choosing "Load Base Model." This will close the scenario model (after prompting to save any unsaved changes that have been made). The scenario model and base model can get out of sync if any changes are made to the base model after the optimization is run, but this makes it possible to load and examine the state of any model at the time any previous optimization was run.