Understanding scenarios

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Video quiz

Two copies of the base scenario are generated. Then, two copies are created from each of the copied scenarios. To which of all of these copied scenarios will changes in the base scenario automatically cascade down to?

(Select one)
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Step-by-step Guide

InfoWorks WS Pro includes Scenario Management functionality that helps you plan what-if analyses and possible future design iterations for a model. For example, scenarios allow you to investigate the impact of different object parameters on simulations. New scenarios, derived from either a base network or other scenarios, are kept separate from a copy of the base model, while still sharing data within the version-controlled commit history.

When creating and working with scenarios:

  • It is important to have a matching Network and Control open.
  • To view a scenario for the open network, select the scenario from the Scenarios toolbar.
  • Object ghosts can be turned on or off from the Visual Page of the GeoPlan Properties dialog box.

Changes made to the base network are copied to scenarios. However:

  • If variable X in Scenario = variable X in Base, changes in base do not cascade
  • If variable X in Scenario is then changed back to equal variable in Base, the cascade link is re-established

Scenarios are not structured in the same way as most InfoWorks WS Pro objects. Consider the following:

A graphic depicting scenarios as children of a Base Network, as well as independent scenarios, and showing where changes made will propogate.

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