Understanding the Difference Between Result Mode and Scenario Mode

In models in which scenarios are not being used, there are three modes that the model can be in: Edit Mode The state of a model when it is being edited and does not contain simulation results., Run Mode The state of a model when it is running., and Result Mode The state of a model when it has been run and contains simulation results for a single set of input parameters.. The model is in Edit Mode while it is being edited, the model is in Run Mode while the simulation is actually running, and the model is placed in Result Mode after results have been generated.

When using scenarios in GoldSim, a fourth mode is introduced: Scenario Mode The state of a model when it contains scenario results, allowing multiple scenarios to be compared.. Scenario Mode is a special model state that allows scenario A specific set of input data (and corresponding outputs) for a model. Multiple scenarios can be defined for a model. Different scenarios within a model are specifically differentiated by having different values for one or more Data elements. results to be displayed and compared. Scenario results can only be compared when the model is in Scenario Mode.

Although Scenario Mode is similar in some respects to Result Mode (in that both modes are used to view results), there are several key differences:

• When in Scenario Mode, scenario results can only be viewed in Time History Result elements, Distribution Result elements and Final Value Result elements. No other results are available. Hence, if your model does not contain any Time History, Distribution or Final Value Result elements, you will not be able to compare scenario results.

• When viewing results in Scenario Mode in Final Value or Distribution Result elements, you cannot view results at Capture Times User-defined points in time during a simulation at which “Final Value” results are captured for result display. The final time point in the simulation is always included as a Capture Time, but additional times can be added.. Only the Final Result can be viewed.

• A model in Scenario Mode has at least one scenario with results. However, when in Scenario Mode, not all scenarios necessarily have results (since the scenarios can be run independently).
• Models cannot be edited in Result Mode. However, in Scenario Mode, you can edit Scenario Data Data elements that differentiate the various scenarios in a model. elements for scenarios that do not have scenario results (i.e., if the Active Scenario When scenarios have been defined, the scenario that is being viewed when you are browsing a model. does not have results, Scenario Data for that scenario can be edited).

Note: Although you can edit Scenario Data elements for an Active Scenario that does not have results while in Scenario Mode, you can never edit non-Data elements in Scenario Mode, since these are common to all scenarios, and doing so would invalidate scenario results that existed for other scenarios.

There are two ways to place a model into Scenario Mode:

• Using the Scenario Manager A dialog that allows you to create, define and run scenarios. to run one or more scenarios.

• Transitioning directly from Result Mode to Scenario Mode.