Network version control and scenarios - Creating network scenarios

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Tutorial resources

These downloadable resources will be used to complete this tutorial:

Valdtng_Network.icmt - (583 kb)

Step-by-step guide

Scenarios can be used to:

Model variations of a network simultaneously without the need to create separate branch networks.
Investigate the impact of different parameters, for example, increasing pipe sizes.
Quality assurance, since multiple users can work in their own scenario until the work has been reviewed.
Once approved, scenarios can be integrated into the Base network, making changes available to all users.

Because scenarios are derived from a Base network, they do not appear in the Explorer window as separate entities. Instead, they are saved within the Base network and viewed by opening the Base network and selecting the scenario from the Scenarios toolbar.

To create a scenario:

In the Scenarios toolbar, click Create scenario.
OR, in the Network menu, click Scenarios > Create scenario.

Two side-by-side image of the InfoWorks ICM interface, showing the two ways to open the Create new scenario dialog box.

In the Create new scenario dialog box, add a New scenario name. For this exercise, type “Re-designed pumps”.
Add meaningful Notes about the scenario. For this exercise, type, “Example scenario with increased pump discharge”.
Click OK to save the scenario.

The Create New Scenario dialog box, with the new scenario name and notes filled in, and OK selected.

Verify that your new scenario is selected in the Scenarios toolbar as well as in the GeoPlan window.

The top-left corner of the InfoWorks ICM interface, with three places highlighted that show the current, active scenario—the Scenarios toolbar, GeoPlan window tab, and title bar.

Make changes to the elements in the scenario without affecting the Base network.

IMPORTANT: Each scenario is a copy of the Base network, unless you create a scenario as a copy of another scenario. All changes made to a scenario are independent. Scenarios can be made to construct unique situations, which can then be run in a simulation and compared.

When scenarios are copied from the Base network, they maintain data inheritance from the Base. Consequently, any changes made to the Base network are replicated automatically in all associated scenarios, except where an element is changed in a scenario that you created.

Use the tools in the Scenarios toolbar to delete, rename, or manage scenarios.

The Scenarios toolbar highlighted in the InfoWorks ICM interface, with the Manage Scenarios dialog box open, and an arrow indicating the Manage Scenarios tool that opened it.

The Manage scenarios dialog box offers several tools, such as:

Comparing scenarios using Diff.
Make the selected scenario the new Base using Reintegrate. (Note that this is a destructive action, as the original Base will be overwritten.)

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