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Import model information from MATLAB tables



archModel = systemcomposer.importModel(modelName,components,ports,connections,portInterfaces,requirementLinks) creates a new architecture model based on MATLAB® tables that specify components, ports, connections, port interfaces, and requirement links. The only required input arguments are modelName and the components table. For empty table input arguments, enter table.empty, however trailing empty tables are ignored and do not need to be entered. To import a basic architecture model, see Define a Basic Architecture. In order to import requirementLinks, you need a Simulink® Requirements™ license.

archModel = systemcomposer.importModel(importStruct) creates a new architecture model based on a structure of MATLAB tables that specify components, ports, connections, port interfaces, and requirements.

[archModel,idMappingTable,importLog,errorLog] = systemcomposer.importModel(___) creates a new architecture model with output arguments idMappingTable with table information, importLog to display import information, and errorLog to display import error information.


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In System Composer™, an architecture is fully defined by three sets of information:

  • Component information

  • Port information

  • Connection information

You can import an architecture into System Composer when this information is defined in or converted into MATLAB® tables.

In this example, the architecture information of a simple UAV system is defined in an Excel spreadsheet and is used to create a System Composer architecture model. It also links elements to the specified system level requirement. You can modify the files in this example to import architectures defined in external tools, when the data includes the required information. The example also shows how to export this architecture information from System Composer architecture model to an Excel® spreadsheet.

Architecture Definition Data

You can characterize the architecture as a network of components and import by defining components, ports, connections, interfaces and requirement links in MATLAB tables. The components table must include name, unique ID, and parent component ID for each component. It can also include other relevant information required to construct the architecture hierarchy for referenced model, and stereotype qualifier names. The ports table must include port name, direction, component, and port ID information. Port interface information may also be required to assign ports to components. The connections table includes information to connect ports. At a minimum, this table must include the connection ID, source port ID, and destination port ID.

The systemcomposer.importModel(importModelName) API :

  • Reads stereotype names from the components table and loads the profiles

  • Creates components and attaches ports

  • Creates connections using the connection map

  • Sets interfaces on ports

  • Links elements to specified requirements

  • Saves referenced models

  • Saves the architecture model

% Instantiate adapter class to read from Excel.
modelName = 'simpleUAVArchitecture';
% importModelFromExcel function reads the Excel file and creates the MATLAB tables.
importAdapter = ImportModelFromExcel('SmallUAVModel.xls','Components', ...

Import an Architecture

model = systemcomposer.importModel(modelName,importAdapter.Components, ...
    importAdapter.Ports,importAdapter.Connections,importAdapter.Interfaces, ...
% Auto-arrange blocks in the generated model

Export an Architecture

You can export an architecture to MATLAB tables and then convert to an external file

exportedSet = systemcomposer.exportModel(modelName);
% The output of the function is a structure that contains the component table, port table,
% connection table, the interface table, and the requirement links table.
% Save the above structure to Excel file.

Close Model


Input Arguments

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Name of model to be created, specified as a character vector.

Example: 'importedModel'

Data Types: char

Model component information, specified as a MATLAB table. The component table must include the columns Name, ID, and ParentID. To specify ComponentType as Variant, Composition (default), StateflowBehavior, or Behavior (reference components) and to set a ReferenceModelName, see Import Variant Components, Stateflow Behaviors, or Reference Components. To apply stereotypes using StereotypeNames and set property values to components, see Apply Stereotypes and Set Property Values on Imported Model.

Data Types: table

Model port information, specified as a MATLAB table. The ports table must include the columns Name, Direction, ID, and CompID. The optional column InterfaceID specifies the interface. portInterfaces information may also be required to assign interfaces to ports.

Data Types: table

Model connections information, specified as a MATLAB table. The connections table must include the columns Name, ID, SourcePortID, and DestPortID. To specify SourceElement or DestinationElement on an architecture port, see Specify Elements on Architecture Port. Assign a stereotype using the optional column StereotypeNames.

Data Types: table

Model port interfaces information, specified as a MATLAB table. The port interfaces table must include the columns Name, ID, ParentID, DataType, Dimensions, Units, Complexity, Minimum, and Maximum. To import interfaces and map ports to interfaces, see Import Interfaces and Map Ports to Interfaces. Assign a stereotype using the optional column StereotypeNames.

Data Types: table

Model requirement links information, specified as a MATLAB table. The requirement links table must include the columns Label, ID, SourceID, DestinationType, DestinationID, and Type. For an example, see Assign Requirement Links on Imported Model. To update reference requirement links from an imported file and integrate them into the model, see Update Reference Requirement Links from Imported File. Optional columns include: DestinationArifact, SourceArtifact, ReferencedReqID, Keywords, CreatedOn, CreatedBy, ModifiedOn, ModifiedBy, and Revision. A Simulink Requirements license is required to import the requirementLinks table to a System Composer™ architecture model.

Data Types: table

Model tables, specified as a structure containing tables components, ports, connections, portInterfaces, and requirementLinks, Only the components table is required.

Data Types: struct

Output Arguments

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Handle to architecture model, specified as a systemcomposer.arch.Architecture object.

Mapping of custom IDs and internal UUIDs of elements, returned as a struct of MATLAB tables.

Data Types: struct

Confirmation that elements were imported, returned as a cell array of character vectors.

Data Types: char

Errors reported during import process, returned as an array of message MException objects. You can obtain the error text by calling the getString method on each MException object. For example, errorLog.getString is used to obtain the errors reported as a string.

More About

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TermDefinitionApplicationMore Information
architectureA System Composer architecture represents a system of components and how they interface with each other structurally and behaviorally. You can represent specific architectures using alternate views.

Different types of architectures describe different aspects of systems:

  • Functional architecture describes the flow of data in a system.

  • Logical architecture describes the intended operation of a system.

  • Physical architecture describes the platform or hardware in a system.

Compose Architecture Visually
modelA System Composer model is the file that contains architectural information, including components, ports, connectors, interfaces, and behaviors.

Perform operations on a model:

  • Extract the root level architecture contained in the model.

  • Apply profiles.

  • Link interface data dictionaries.

  • Generate instances from model architecture.

System Composer models are stored as .slx files.

Create an Architecture Model
componentA component is a nontrivial, nearly-independent, and replaceable part of a system that fulfills a clear function in the context of an architecture. A component defines an architecture element, such as a function, a system, hardware, software, or other conceptual entity. A component can also be a subsystem or subfunction.Represented as a block, a component is a part of an architecture model that can be separated into reusable artifacts.Components
portA port is a node on a component or architecture that represents a point of interaction with its environment. A port permits the flow of information to and from other components or systems.

There are different types of ports:

  • Component ports are interaction points on the component to other components.

  • Architecture ports are ports on the boundary of the system, whether the boundary is within a component or the overall architecture model.

connectorConnectors are lines that provide connections between ports. Connectors describe how information flows between components or architectures.A connector allows two components to interact without defining the nature of the interaction. Set an interface on a port to define how the components interact.Connections

TermDefinitionApplicationMore Information
interfaceAn interface defines the kind of information that flows through a port. The same interface can be assigned to multiple ports. An interface can be composite, meaning that it can include elements that describe the properties of an interface signal.Interfaces represent the information that is shared through a connector and enters or exits a component through a port. Use the Interface Editor to create and manage interfaces and interface elements and store them in an interface data dictionary for reuse between models.Define Interfaces
interface elementAn interface element describes a portion of an interface, such as a communication message, a calculated or measured parameter, or other decomposition of that interface.

Interface elements describe the decompositions of an interface:

  • Pins or wires in a connector or harness.

  • Messages transmitted across a bus.

  • Data structures shared between components.

Assign Interfaces to Ports
interface dictionaryAn interface data dictionary is a consolidated list of all the interfaces in an architecture and where they are used. Local interfaces on a System Composer model can be saved in an interface data dictionary using the Interface Editor.Interface dictionaries can be reused between models that need to use a given set of interfaces and interface elements. Data dictionaries are stored in separate .sldd files.
adapterAn adapter helps connect two components with incompatible port interfaces by mapping between the two interfaces. An adapter can also act as a unit delay or rate transition.

With an adapter, you can perform three functions on the Interface Adapter dialog:

  • Create and edit mappings between input and output interfaces.

  • Apply an interface conversion UnitDelay to break an algebraic loop.

  • Apply an interface conversion RateTransition to reconcile different sample time rates for reference models.

Interface Adapter

TermDefinitionApplicationMore Information
requirementsA collection of statements describing the desired behavior and characteristics of a system. Requirements ensure system design integrity and are achievable, verifiable, unambiguous, and consistent with each other. Each level of design should have appropriate requirements.To enhance traceability of requirements, link system, functional, customer, performance, or design requirements to components and ports. Link requirements to each other to represent derived or allocated requirements. Manage requirements from the requirements perspective on an architecture model or through custom views. Assign test cases to requirements.

Introduced in R2019a