Manage Variant Modeling Components

Manage variant elements and define, reduce, and analyze variant configurations

Variant Manager is a tool that allows you to visualize the model hierarchy and centrally manage the usage of variant elements such as variant blocks and variant transitions in Stateflow^® charts across the hierarchy.

The tool is available as a support package named Variant Manager for Simulink^® with these main capabilities:

Variant Manager — Visualize the model hierarchy, manage the usage of variant elements across the hierarchy, and create and manage variant configurations.
Variant Reducer — Generate a reduced model that contains only selected variant configurations.
Variant Analyzer — Compare and contrast variant configurations to identify errors or inconsistencies.

Classes

`Simulink.VariantConfigurationData`	Create variant configurations programmatically
`Simulink.VariantConfigurationAnalysis`	Analyze variant configurations programmatically

Functions

`Simulink.VariantManager.activateModel`	Validate and activate variant blocks in model hierarchy (Since R2022b)
`Simulink.VariantManager.updateModel`	Obtain model compilation information and activate variant blocks in model hierarchy (Since R2024b)
`Simulink.VariantManager.applyConfiguration`	Apply specified variant configuration to model (Since R2022b)
`Simulink.VariantManager.findVariantControlVars`	Find variables used in variant control expressions
`Simulink.VariantManager.generateConfigurations`	Generate variant configurations automatically (Since R2022b)
`Simulink.VariantManager.getConfigurationData`	Get variant configuration data object associated with model (Since R2022b)
`Simulink.VariantManager.getPreferredConfigurationName`	Get name of preferred variant configuration for model (Since R2022b)
`Simulink.VariantManager.reduceModel`	Generate reduced model for specified variant configurations

Support Package

Variant Manager for Simulink

Use a central tool to manage all variation points in a variant model.

Topics

Variant Configurations
Use variant configurations to represent combination of variant choices across model hierarchy.
Create and Activate Variant Configurations
Create and activate variant configurations for a model.
Compose Variant Configurations for Top Model Using Referenced Model Configurations
Use referenced model configuration to set up variant configuration for a top-level model.
Save and Reuse Variant Configurations Using Variant Configuration Data Object
Save and load variant configuration data object for a model.
Generate Variant Configurations Automatically
Generate all possible variant configurations for a model.
Variant Manager Workflow to Set Up Variant Configurations for Models
Workflow diagram to set up variant configurations for a model.
Variant Manager Workflow to Manage Existing Variant Configurations in Models
Workflow diagram to manage existing variant configurations for a model.
Reduce Variant Models Using Variant Reducer
Generate reduced models that contain a subset of the available variant configurations.
Analyze Variant Configurations in Models Containing Variant Blocks
Analyze and compare variant configurations for a model containing variant blocks.

Featured Examples

Manage, Configure, Reduce, and Analyze System Variants with Variant Manager for Simulink

Gives an overview of the capabilities of the Variant Manager tool in Simulink.

Open Model

Generate Variant Configurations Programmatically

Generate variant configurations for a model programmatically.

Open Live Script

Validate and Activate Variant Configurations

Validate and activate a variant configuration programmatically.

Open Live Script

Reduce Model Containing Variant Blocks

Reduce a Simulink® model that contains variant blocks both programmatically and by using Variant Reducer in Variant Manager.

Open Model

Reduce Model Containing Variant Parameters

Reduce a Simulink® model that contains variant parameters using Variant Reducer in Variant Manager. The example explains the reduction process for these scenarios: