systemcomposer.arch.Architecture

Architecture in model

Description

The Architecture object represents the architecture in a System Composer™ model. This class is derived from systemcomposer.arch.Element.

Creation

Create a model using the systemcomposer.createModel function and get the root architecture using the Architecture property on the systemcomposer.arch.Model object.

model = systemcomposer.createModel('archModel');
arch = get(model,'Architecture')

Properties

Name — Name of architecture

character vector

Name of architecture, specified as a character vector. The architecture name is derived from the parent component or model name to which the architecture belongs.

Example: 'archModel'

Data Types: char

Definition — Definition type of architecture

ArchitectureDefinition enumeration

Definition type of architecture, specified as composition, behavior, or view.

Data Types: enum

Parent — Parent component

component object

Parent component that owns architecture, specified as a systemcomposer.arch.Component object.

Components — Child components

array of component objects

Child components of architecture, specified as an array of systemcomposer.arch.Component objects.

Ports — Architecture ports

array of architecture port objects

Architecture ports, specified as an array of systemcomposer.arch.ArchitecturePort objects.

Connectors — Connectors that connect child components of architecture

array of connector objects

Connectors that connect child components of architecture, specified as an array of systemcomposer.arch.Connector or systemcomposer.arch.PhysicalConnector objects.

Parameters — Parameters of component

parameter object

Parameters of component, specified as a systemcomposer.arch.Parameter object.

UUID — Universal unique identifier

character vector

Universal unique identifier for architecture, specified as a character vector.

Example: '91d5de2c-b14c-4c76-a5d6-5dd0037c52df'

Data Types: char

ExternalUID — Unique external identifier

character vector

Unique external identifier, specified as a character vector. The external ID is preserved over the lifespan of the architecture and through all operations that preserve the UUID.

Data Types: char

Model — Parent model

model object

Parent System Composer model of architecture, specified as a systemcomposer.arch.Model object.

SimulinkHandle — Simulink handle

numeric value

Simulink^® handle, specified as a double.

This property is necessary for several Simulink related work lows and for using Requirements Toolbox™ programmatic interfaces.

Example: handle = get(object,'SimulinkHandle')

Data Types: double

SimulinkModelHandle — Simulink handle to parent model

numeric value

Simulink handle to parent System Composer model, specified as a double.

This property is necessary for several Simulink related work lows and for using Requirements Toolbox programmatic interfaces.

Example: handle = get(object,'SimulinkModelHandle')

Data Types: double

Object Functions

addComponent	Add components to architecture
addVariantComponent	Add variant components to architecture
addPort	Add ports to architecture
addFunction	Add functions to architecture of software component
addParameter	Add parameter to architecture
getParameter	Get parameter from architecture or component
connect	Create architecture model connections
applyStereotype	Apply stereotype to architecture model element
getStereotypes	Get stereotypes applied on element of architecture model
removeStereotype	Remove stereotype from model element
batchApplyStereotype	Apply stereotype to all elements in architecture
iterate	Iterate over model elements
instantiate	Create analysis instance from specification
setProperty	Set property value corresponding to stereotype applied to element
getProperty	Get property value corresponding to stereotype applied to element
getPropertyValue	Get value of architecture property
getEvaluatedPropertyValue	Get evaluated value of property from element
getStereotypeProperties	Get stereotype property names on element
removeProfile	Remove profile from model
applyProfile	Apply profile to model
hasStereotype	Find if element has stereotype applied
hasProperty	Find if element has property
getEvaluatedParameterValue	Get evaluated value of parameter from element
getParameterNames	Get parameter names on element
getParameterValue	Get value of parameter
setParameterValue	Set value of parameter
setUnit	Set units on parameter value
resetParameterToDefault	Reset parameter on component to default value

Examples

Build Architecture Models Programmatically

Build an architecture model programmatically using System Composer™.

Build Model

To build a model, add a data dictionary with data interfaces, data elements, a value type, and a physical interface, then add components, ports, and connections. Create a profile with stereotypes and properties and then apply those stereotypes to model elements. Assign an owned interface to a port. After the model is built, you can create custom views to focus on specific considerations. You can also query the model to collect different model elements according to criteria you specify.

Add Components, Ports, Connections, and Interfaces

Create a model and extract its architecture.

model = systemcomposer.createModel("mobileRobotAPI");
arch = model.Architecture;

Create an interface data dictionary and add a data interface. Add a data element to the data interface. Add a value type to the interface data dictionary. Assign the type of the data element to the value type. Add a physical interface and physical element with a physical domain type. Link the data dictionary to the model.

dictionary = systemcomposer.createDictionary("SensorInterfaces.sldd");
interface = dictionary.addInterface("GPSInterface");
element = interface.addElement("SignalStrength");
valueType = dictionary.addValueType("SignalStrengthType",Units="dB",Description="GPS Signal Strength");
element.setType(valueType);
physicalInterface = dictionary.addPhysicalInterface("PhysicalInterface");
physicalElement = addElement(physicalInterface,"ElectricalElement",Type="electrical.electrical");
linkDictionary(model,"SensorInterfaces.sldd");

Save the changes to the interface data dictionary.

dictionary.save

Save the model.

model.save

Open the model.

systemcomposer.openModel("mobileRobotAPI");

View the interfaces in the Interface Editor.

Add components, ports, and connections. Set the physical interface to the physical ports, which you will connect later.

componentSensor = addComponent(arch,"Sensor");
sensorPorts = addPort(componentSensor.Architecture,{'MotionData','SensorPower'},{'in','physical'});
sensorPorts(2).setInterface(physicalInterface)

componentPlanning = addComponent(arch,"Planning");
planningPorts = addPort(componentPlanning.Architecture,{'Command','SensorPower1','MotionCommand'},{'in','physical','out'});
planningPorts(2).setInterface(physicalInterface)

componentMotion = addComponent(arch,"Motion");
motionPorts = addPort(componentMotion.Architecture,{'MotionCommand','MotionData'},{'in','out'});

Create an owned interface on the 'MotionData' port. Add an owned data element under the owned data interface. Assign the data element "Rotation" to a value type with units set to degrees.

ownedInterface = motionPorts(2).createInterface("DataInterface");
ownedElement = ownedInterface.addElement("Rotation");
subInterface = ownedElement.createOwnedType(Units="degrees");

View the interfaces in the Interface Editor. Select the 'MotionData' port on the Motion component. In the Interface Editor, switch from Dictionary View to Port Interface View.

Connect components with an interface rule and the default name rule. The interface rule connects ports on components that share the same interface. By default, the name rule connects ports on components that share the same name.

c_sensorData = connect(arch,componentSensor,componentPlanning,Rule="interface");
c_motionData = connect(arch,componentMotion,componentSensor);
c_motionCommand = connect(arch,componentPlanning,componentMotion);

Add and Connect Architecture Port

Add an architecture port on the architecture.

archPort = addPort(arch,"Command","in");

The connect command requires a component port as an argument. Obtain the component port, then connect.

compPort = getPort(componentPlanning,"Command");
c_Command = connect(archPort,compPort);

Save the model.

model.save

Arrange the layout by pressıng Ctrl+Shift+A or using this command.

Simulink.BlockDiagram.arrangeSystem("mobileRobotAPI"); 

Create and Apply Profile with Stereotypes

Profiles are XML files that can be applied to any model. You can add stereotypes with properties to profiles and then populate the properties with specific values. Along with the built-in analysis capabilities of System Composer, stereotypes help you optimize your system for performance, cost, and reliability.

Create Profile and Add Stereotypes

Create a profile.

profile = systemcomposer.createProfile("GeneralProfile");

Create a stereotype that applies to all element types.

elemSType = addStereotype(profile,"projectElement");

Create stereotypes for different types of components. You can select these types are based on your design needs.

pCompSType = addStereotype(profile,"physicalComponent",AppliesTo="Component");
sCompSType = addStereotype(profile,"softwareComponent",AppliesTo="Component");

Create a stereotype for connections.

sConnSType = addStereotype(profile,"standardConn",AppliesTo="Connector");

Add Properties

Add properties to the stereotypes. You can use properties to capture metadata for model elements and analyze nonfunctional requirements. These properties are added to all elements to which the stereotype is applied, in any model that imports the profile.

addProperty(elemSType,'ID',Type="uint8");
addProperty(elemSType,'Description',Type="string");
addProperty(pCompSType,'Cost',Type="double",Units="USD");
addProperty(pCompSType,'Weight',Type="double",Units="g");
addProperty(sCompSType,'develCost',Type="double",Units="USD");
addProperty(sCompSType,'develTime',Type="double",Units="hour");
addProperty(sConnSType,'unitCost',Type="double"',Units="USD");
addProperty(sConnSType,'unitWeight',Type="double",Units="g");
addProperty(sConnSType,'length',Type="double",Units="m");

Save Profile

profile.save;

Apply Profile to Model

Apply the profile to the model.

applyProfile(model,"GeneralProfile");

Apply stereotypes to components. Some components are physical components, while others are software components.

applyStereotype(componentPlanning,"GeneralProfile.softwareComponent")
applyStereotype(componentSensor,"GeneralProfile.physicalComponent")
applyStereotype(componentMotion,"GeneralProfile.physicalComponent")

Apply the connector stereotype to all connections.

batchApplyStereotype(arch,'Connector',"GeneralProfile.standardConn");

Apply the general element stereotype to all connectors and ports.

batchApplyStereotype(arch,'Component',"GeneralProfile.projectElement");
batchApplyStereotype(arch,'Connector',"GeneralProfile.projectElement");

Set properties for each component.

setProperty(componentSensor,'GeneralProfile.projectElement.ID','001');
setProperty(componentSensor,'GeneralProfile.projectElement.Description','''Central unit for all sensors''');
setProperty(componentSensor,'GeneralProfile.physicalComponent.Cost','200');
setProperty(componentSensor,'GeneralProfile.physicalComponent.Weight','450');
setProperty(componentPlanning,'GeneralProfile.projectElement.ID','002');
setProperty(componentPlanning,'GeneralProfile.projectElement.Description','''Planning computer''');
setProperty(componentPlanning,'GeneralProfile.softwareComponent.develCost','20000');
setProperty(componentPlanning,'GeneralProfile.softwareComponent.develTime','300');
setProperty(componentMotion,'GeneralProfile.projectElement.ID','003');
setProperty(componentMotion,'GeneralProfile.projectElement.Description','''Motor and motor controller''');
setProperty(componentMotion,'GeneralProfile.physicalComponent.Cost','4500');
setProperty(componentMotion,'GeneralProfile.physicalComponent.Weight','2500');

Set the properties of connections to be identical.

connections = [c_sensorData c_motionData c_motionCommand c_Command];
for k = 1:length(connections)
    setProperty(connections(k),'GeneralProfile.standardConn.unitCost','0.2');
    setProperty(connections(k),'GeneralProfile.standardConn.unitWeight','100');
    setProperty(connections(k),'GeneralProfile.standardConn.length','0.3');
end

Add Hierarchy

Add two components named Controller and Scope inside the Motion component. Define the ports. Connect the components to the architecture and to each other, applying a connector stereotype. Hierarchy in an architecture diagram creates an additional level of detail that specifies how components behave internally.

motionArch = componentMotion.Architecture;

motionController = motionArch.addComponent('Controller');
controllerPorts = addPort(motionController.Architecture,{'controlIn','controlOut'},{'in','out'});
controllerCompPortIn = motionController.getPort('controlIn');
controllerCompPortOut = motionController.getPort('controlOut');

motionScope = motionArch.addComponent('Scope');
scopePorts = addPort(motionScope.Architecture,{'scopeIn','scopeOut'},{'in','out'});
scopeCompPortIn = motionScope.getPort('scopeIn');
scopeCompPortOut = motionScope.getPort('scopeOut');

c_planningController = connect(motionPorts(1),controllerCompPortIn);

For outport connections, the data element must be specified.

c_planningScope = connect(scopeCompPortOut,motionPorts(2),'DestinationElement',"Rotation");
c_planningConnect = connect(controllerCompPortOut,scopeCompPortIn,'GeneralProfile.standardConn');

Save the model.

model.save

Arrange the layout by pressıng Ctrl+Shift+A or using this command.

Simulink.BlockDiagram.arrangeSystem('mobileRobotAPI/Motion');

Create Model Reference

Model references can help you organize large models hierarchically and define architectures or behaviors once that you can then reuse. When a component references another model, any existing ports on the component are removed, and ports that exist on the referenced model will appear on the component.

Create a new System Composer model. Convert the Controller component into a reference component to reference the new model. To add additional ports on the Controller component, you must update the referenced model "mobileMotion".

referenceModel = systemcomposer.createModel("mobileMotion");
referenceArch = referenceModel.Architecture;
newComponents = addComponent(referenceArch,"Gyroscope");
referenceModel.save

linkToModel(motionController,"mobileMotion");

Save the models.

referenceModel.save
model.save

Make Variant Component

You can convert the Planning component to a variant component using the makeVariant function. The original component is embedded within a variant component as one of the available variant choices. You can design other variant choices within the variant component and toggle the active choice. Variant components allow you to choose behavioral designs programmatically in an architecture model to perform trade studies and analysis.

[variantComp,choice1] = makeVariant(componentMotion);

Add an additional variant choice named MotionAlt. The second argument defines the name, and the third argument defines the label. The label identifies the choice. The active choice is controlled by the label.

choice2 = addChoice(variantComp,{'MotionAlt'},{'MotionAlt'});

Create the necessary ports on MotionAlt.

motionAltPorts = addPort(choice2.Architecture,{'MotionCommand','MotionData'},{'in','out'});

Make MotionAlt the active variant.

setActiveChoice(variantComp,'MotionAlt')

Arrange the layout by pressıng Ctrl+Shift+A or using this command.

Simulink.BlockDiagram.arrangeSystem('mobileRobotAPI/Planning');

Save the model.

model.save

Clean Up

Run this script to remove generated artifacts before you run this example again.

cleanUpArtifacts

More About

Definitions

Term	Definition	Application	More Information
architecture	A 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. You can define parameters on the architecture level using the Parameter Editor.	Compose Architectures Visually Author Parameters in System Composer Using Parameter Editor
model	A 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. A System Composer model is stored as an SLX file.	Create Architecture Model with Interfaces and Requirement Links
component	A 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 architectural 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. Transfer information between components with: Port interfaces using the Interface Editor Parameters using the Parameter Editor	Components
port	A 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.	Ports
connector	Connectors 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

Version History

Introduced in R2019a