Manage Design Data - MATLAB & Simulink (original) (raw)

Choose how to store, partition, and share model design data for small projects and complex model hierarchies

Design data is the set of variables and data objects that you use to specify block parameters and signal characteristics, such as data type and dimension, in a Simulink® model. Storage options for design data include the MATLAB® base workspace, model workspaces, MATLAB files, and data dictionaries. Choosing a storage option for your design data can depend on:

• Modeling goals
• Model architecture
• Types of data

To learn about types of model data and how to manage data storage for your project, see Determine Where to Store Variables and Objects for Simulink Models.

To learn how to manage data programmatically, see Manage Design Data for Simulink Models Programmatically.

Functions

Objects

Tools

Topics

Data Storage for Simulink Models

• Determine Where to Store Variables and Objects for Simulink Models
  Simulink data are objects and variables that you create in workspaces such as the base workspace or a data dictionary. Choose a technique to permanently store that data.
• What Is Architectural Data?
  Use architectural data to define, maintain, and share data across a design hierarchy.
• Link MAT File to Model as External Data Source
  Use MAT file as an external data source to link it to model for permanent data storage.
• Manage Design Data for Simulink Models Programmatically
  Connect to a data source, such as a model workspace, base workspace, MAT file, or data dictionary, then use a common set of functions to manage the data.
• Create, Edit, and Manage Workspace Variables
  Workspace variables enable you to share information, such as parameter values and data types, between blocks and models. Use different tools and techniques to create and manipulate workspace variables.
• Edit and Manage Workspace Variables by Using Model Explorer
  Find out which workspace variables are used by a model or block, find blocks that use a variable, find unused variables, and rename a variable everywhere it is used by blocks. Save and load variables from a separate file.

Data Storage in Model Workspace

• Model Workspaces
  Place variables and objects that a model uses in a workspace that only the model can access.
• Change Model Workspace Data
  When you store data in a model workspace, you choose a data source, such as the model file or an external MAT-file. To modify the variables at the source, you use a different procedure depending on the type of source that you selected.
• Specify Source for Data in Model Workspace
  Store variables and objects that a model uses in the model file or in a separate file. Optionally, store the variables and objects as code that you can modify.

Data Storage in Dictionary

• What Is a Data Dictionary?
  Use a data dictionary to store external data for a model.
• Import and Export Dictionary Data
  Migrate data between a data dictionary and a MAT file or MATLAB script file.
• View and Revert Changes to Dictionary Data
  Use a data dictionary to inspect and manage changes to model data.
• Store Shared Data in Architectural Data Section
  To share interfaces, data types, and constants across components and compositions modeled in Simulink, use the Architectural Data section of a data dictionary.
• Migrate Models to Use Simulink Data Dictionary
  Store variables and objects in data dictionaries.
• Partition Dictionary Data Using Referenced Dictionaries
  Create referenced dictionaries to store subsets of the data that a model or model hierarchy uses.
• Partition Data for Model Reference Hierarchy Using Data Dictionaries
  Compose a dictionary hierarchy based on a model reference hierarchy.
• Link Data Dictionary to Custom Libraries
  Share data objects with Simulink block library users using linked data dictionary.
• Enumerations in Data Dictionary
  Store enumerated type definitions and enumerated data in a data dictionary.
• Store Data in Dictionary Programmatically
  Use scripts and the command prompt to create and interact with data dictionaries.

Data Storage in Objects and Variables

• Data Objects
  Specify properties for parameters, signals, and states, including parameter values, outside of a block diagram by using external data objects.
• Symbol Resolution
  You can control how blocks in a model resolve symbols to variables and objects that you create in workspaces.
• Define Data Classes
  Customize the way your model interacts with data (signals, parameters, and states) by creating your own class of data object.
• Upgrade Level-1 Data Classes
  Simulink no longer supports level-1 data classes. You must upgrade data classes that you created using the level-1 data class infrastructure, which was removed in a previous release.