Scenario Selector

This article explains the Scenario Selector pattern in Model Reef.

You will learn:

  • How scenarios are represented as separate models.

  • How the interface helps you move between them.

  • How scenario context affects dashboards and reports.

In Model Reef, each scenario is its own model. The Scenario Selector is a navigation aid that helps you switch quickly between those models while keeping a consistent view.


Scenarios as separate models

Unlike some tools, Model Reef does not store scenarios as states inside a single model. Instead:

  • Each scenario is a standalone model with its own branches, variables and Data Library.

  • For example you might have Client X - Group Forecast - Base, Client X - Group Forecast - Downside, Client X - Group Forecast - Upside.

  • These models are related by naming and structure, not by internal links.

The Scenario Selector relies on these naming patterns and relationships.


Where you see the Scenario Selector pattern

In some views, especially dashboards and reporting, you may see a scenario selector or quick switcher that lets you:

  • Jump from one scenario model to another while keeping the same high level dashboard or report open.

  • Compare common layouts across Base, Downside and Upside builds.

Behind the scenes, switching scenario is really switching to a different model that shares the same layout or template.


What changes when you switch scenario

When you move from one scenario model to another:

  • All calculations are taken from the new model.

  • P&L, Balance Sheet, Cashflow and Cash Waterfall change to reflect that model's assumptions.

  • Dashboard charts and KPIs update.

  • Valuation outputs such as NPV, IRR and money multiple update.

The structure of the report or dashboard stays constant. The underlying data source (the model) changes.


Working with scenarios

1

Create a scenario model

Duplicate a base model to create a new scenario model.

2

Update assumptions

Change assumptions in the new model (growth, margins, capex, financing and so on).

3

Switch between scenarios

Use the Scenario Selector pattern in dashboards or reports to move between scenarios quickly.

4

Review and discuss

Discuss differences in outputs with stakeholders.

Because scenarios are separate models, changes in one do not affect the others.


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