Association

If there are two or more aggregations to the same aggregate, a conforming tool may as a purely presentational option show them as a tree by merging the aggregation ends into a single segment adorned by the solid or hollow aggregation diamond symbol.

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Unified Modeling Language 2.5.1

Not all links need to be classified by an Association.

Source

Unified Modeling Language 2.5.1

An “X” on a single end of an association to indicate that an end is not navigable has similarly been dropped, as has the use of a small filled dot at the end of an association to indicate that the end is owned by the associated classifier.

Source

OMG Systems Modeling Language (SysML) 1.7

The use of navigation arrowheads on an association has been simplified by excluding the case of arrowheads on both ends, and requiring that such an association always be shown without arrowheads on either end.

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OMG Systems Modeling Language (SysML) 1.7

Notational and metamodel support for n-ary associations and qualified associations has been excluded from SysML.

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OMG Systems Modeling Language (SysML) 1.7

The supported variety of notations for associations and association annotations has been reduced to simplify the burden of teaching, learning, and interpreting SysML diagrams for the systems engineering user.

Source

OMG Systems Modeling Language (SysML) 1.7

Association and Property - some cases - with dot notation and ownership indicators

Gallery

Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

01:02: UML 101 for model-based systems engineering with SysML

Slide kind

UML Class Diagram

The dot shows that the model includes a Property of the type represented by the Classifier touched by the dot. This Property is owned by the Classifier at the other end.

Source

Unified Modeling Language 2.5.1

The dot is to be drawn integral to the graphic path of the line, at the point where it meets the Classifier, inserted between the end of the line and the side of the node representing the Classifier.

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Unified Modeling Language 2.5.1

Ownership of Association ends by an associated Classifier may be indicated graphically by a small filled circle, which for brevity we will term a dot.

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Unified Modeling Language 2.5.1

Aggregation type, navigability, and end ownership are separate concepts, each with their own explicit notation. Association ends owned by classes are always navigable, while those owned by associations may be navigable or not.

Source

Unified Modeling Language 2.5.1

Navigability notation was often used in the past according to an informal convention, whereby non-navigable ends were assumed to be owned by the Association whereas navigable ends were assumed to be owned by the Classifier at the opposite end. DEPRECATED.

Source

Unified Modeling Language 2.5.1

SysMLv1: Some invalid multiplicity examples with navigable and non-navigable Association ends. In Cameo Systems Modeler with validation.

TIP: SysMLv1: Cameo: Can't see the Item Flow Manager icons in the smart manipulators for an ObjectFlow in an Activity Diagram with swimlanes? Try setting Item Flow Creation Mode to 'Between Part Types' instead of 'Direct' under your Project settings!

Basic SysMLv1 example: The HelpM` package MTools classes as Blocks

Gallery

Tutorial

[TECHNICAL SLIDE TRAIL] The Webel libraries for Wolfram Mathematica: With SysMLv1 models.

Section

SECTION: Modelling the Wolfram Language in SysMLv1 and related Webel coding conventions

Slide kind

SysML Block Definition Diagram (BDD)

SysML Package Diagram

SysMLv1: Cameo Simulation Toolkit: GOTCHA: Do not use Associations with Signal attributes, they will become null when fed as argument values for Parameters of 'effect' Behaviors of Transitions

Webel: SysMLv1: TIP: Use semantically meaningful Association names and/or custom Stereotypes where applicable. They can also often be used as pseudo OWL/RDF semantic triples. But don't use Association names where an ItemFlow can capture an exchange item!

SysMLv1: MagicDraw/Cameo: HOWTO show "missing" ItemFlows after using Display Related Elements to re-draw Associations and Connectors. Use the 'Show Realised Item Flows' and 'Realize All Item Flows' smart manipulators.

A Property may represent an attribute of a Classifier, a memberEnd of an Association, or in some cases both simultaneously.

Source

Unified Modeling Language 2.5.1

SysMLv1: MagicDraw/Cameo: Oh no, I lost my part or reference property? Where did it go? The Symbol Properties option for 'Show Association ends as Attributes' may help you find it!

SysMLv1: A part Property or reference Property is not necessarily a 'memberEnd' or 'ownedEnd' of an Association ('association' or 'owningAssociation'). But an Association always as at least 2 'memberEnd' Properties. [With some MagicDraw/Cameo tool tips.]

Webel: SysMLv1: TIP: Consider using high level "communication" Associations between Blocks in BDDs and corresponding object diagram BDDs WITHOUT any Ports, with Links typed by the Associations. Object diagrams are great for exploring Slot values, too.

Webel: SysMLv1: TIP: Consider using high level "communication" Associations between Blocks in BDDs with ItemFlows and corresponding context IBDs WITHOUT any Ports, with Connectors typed by the Associations (as well, in parallel with your port-based IBDs).

SysML4Mathematica: Example: Block Definition Diagram overview of ConstraintBlocks, their parameters, and ConstraintBlock usages representing lower-level Webel Psy library Psychrometrics functions and CoolProp wrapper usages

Gallery

Tutorial

TRAIL: Air Conditioning Psychrometrics (vs CED Engineering course): Example results (only) in Mathematica and SysML using the Webel Psy package and MPsy class

Section

Slide kind

SysML Block Definition Diagram (BDD)

A «pa:implied» Element: Include a tagged value for at least one Snippet that implies it

Gallery

Tutorial

TRAIL: Theory and best practices for the Webel Parsing Analysis recipe for SysMLv1.6+

Section

Slide kind

SysML Block Definition Diagram (BDD)

Webel Parsing Analysis: SysML: Pseudo Semantic Triple: A «pa:triple» may be applied to a uni-directional Association between SysML Blocks and/or Actors.

Webel Parsing Analysis: Pseudo Semantic Triple: When «pa:triple» is applied to a named uni-directional Association the name and a consistent direction arrow should be displayed on the Association symbol in diagrams.

Webel Parsing Analysis: Pseudo Semantic Triple: For «pa:triple» applied to a named one-to-one Dependency, the source is the subject, the name of the Dependency is the predicate, the target is the object.

Webel Parsing Analysis: Pseudo Semantic Triple: For «pa:triple» applied to a named one-to-one or one-to-many uni-directional Association, the non-navigable end Property is the subject, the name is the predicate, the navigable end Property is the object.

«pa:triple»: Pseudo semantic triples (c.f. RDF/S and OWL)

Gallery

Tutorial

TRAIL: Theory and best practices for the Webel Parsing Analysis recipe for SysMLv1.6+

Section

Slide kind

SysML Block Definition Diagram (BDD)

Containment tree view of members of a «snippet» ElementGroup in MagicDraw/Cameo

Gallery

Tutorial

TRAIL: Theory and best practices for the Webel Parsing Analysis recipe for SysMLv1.6+

Section

Slide kind

Focus BDD for block EnglishPangram

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Tutorial

TRAIL: Theory and best practices for the Webel Parsing Analysis recipe for SysMLv1.6+

Section

Slide kind

SysML Block Definition Diagram (BDD)

Focus PAD for the Snippet ''an English-language pangram — a sentence that contains all of the letters of the English alphabet'

Gallery

Tutorial

TRAIL: Theory and best practices for the Webel Parsing Analysis recipe for SysMLv1.6+

Section

Slide kind

SysML Block Definition Diagram (BDD)

Focus BDD for block FoxDogPangramContext

Gallery

Tutorial

TRAIL: Theory and best practices for the Webel Parsing Analysis recipe for SysMLv1.6+

Section

Slide kind

SysML Block Definition Diagram (BDD)

Focus PAD for the Snippet 'The quick brown fox jumps over the lazy dog'

Gallery

Tutorial

TRAIL: Theory and best practices for the Webel Parsing Analysis recipe for SysMLv1.6+

Section

Slide kind

SysML Block Definition Diagram (BDD)

Package Diagram overview of a simple domestic air conditioner with an inverter

Gallery

Tutorial

TRAIL: SysML: Simple model of an air conditioner with a refrigerant cycle and StateMachine driven by Activities in MagicDraw/Cameo

Section

Slide kind

SysML Package Diagram

MagicDraw/Cameo: You can drag out a Property (or Port) from a Class or Block symbol to create an Association with the Property (or Port) as one end

There is no «port» stereotype keyword for Port or Property in UML-2.5.1 or SysML-1.6. It is assumed to be introduced in some SysML and SysPhS specification diagrams as a custom or user-defined stereotype for special illustration purposes.

BDD: Figure 60: Hydraulics blocks, ports, & component properties

Gallery

Tutorial

TRAIL: SysPhS-1.1 Annex A examples in MagicDraw/Cameo SysML vs Modelica (Wolfram SystemsModeler)

Section

Annex A.4: Hydraulics

Slide kind

SysML Block Definition Diagram (BDD)

BDD: Figure 50: Signal processing system blocks, ports, & component properties

Gallery

Tutorial

TRAIL: SysPhS-1.1 Annex A examples in MagicDraw/Cameo SysML vs Modelica (Wolfram SystemsModeler)

Section

Annex A.3: Signal Processor

Slide kind

SysML Block Definition Diagram (BDD)

BDD: Figure 49: Total system (source to sink) blocks, ports, & component properties

Gallery

Tutorial

TRAIL: SysPhS-1.1 Annex A examples in MagicDraw/Cameo SysML vs Modelica (Wolfram SystemsModeler)

Section

Annex A.3: Signal Processor

Slide kind

SysML Block Definition Diagram (BDD)

UML/SysML: When you use an AddStructuralFeatureValueAction to set one end of a bi-directional Association it also sets the other end.

In the Webel recipe for UML/SysML, the pattern of progressive redefinition of end Properties of Associations between progressively more specialised pairs of Blocks at the same level of abstraction is informally called a "redefinition ladder"

Improved baryon Package Diagram including Nucleon, Proton, Neutron

Gallery

Tutorial

TRAIL: Webel SysML Parsing Analysis example: A particle physics taxonomy from Wikipedia

Section

Slide kind

SysML Package Diagram

The Quark block's focus BDD so far

Gallery

Tutorial

TRAIL: Webel SysML Parsing Analysis example: A particle physics taxonomy from Wikipedia

Section

Slide kind

SysML Block Definition Diagram (BDD)

SysML Parametric Diagram

The quark Package Diagram so far

Gallery

Tutorial

TRAIL: Webel SysML Parsing Analysis example: A particle physics taxonomy from Wikipedia

Section

Slide kind

SysML Package Diagram

There are six types of quarks (and six antiquarks)

This content has been marked as discussing an ADVANCED topic!

Gallery

Tutorial

TRAIL: Webel SysML Parsing Analysis example: A particle physics taxonomy from Wikipedia

Section

Slide kind

SysML Block Definition Diagram (BDD)

Mass and charge of electron and positron

Gallery

Tutorial

TRAIL: Webel SysML Parsing Analysis example: A particle physics taxonomy from Wikipedia

Section

Slide kind

SysML Block Definition Diagram (BDD)

Modelling antiparticles, antileptons, and antimatter

This content has been marked as discussing an ADVANCED topic!

Gallery

Tutorial

TRAIL: Webel SysML Parsing Analysis example: A particle physics taxonomy from Wikipedia

Section

Slide kind

SysML Block Definition Diagram (BDD)

Leptons and interactions

Gallery

Tutorial

TRAIL: Webel SysML Parsing Analysis example: A particle physics taxonomy from Wikipedia

Section

Slide kind

SysML Block Definition Diagram (BDD)

Spin for elementary particles and composite particles

Gallery

Tutorial

TRAIL: Webel SysML Parsing Analysis example: A particle physics taxonomy from Wikipedia

Section

Slide kind

SysML Block Definition Diagram (BDD)

Mass of charged leptons and decay (Part 2)

Gallery

Tutorial

TRAIL: Webel SysML Parsing Analysis example: A particle physics taxonomy from Wikipedia

Section

Slide kind

SysML Block Definition Diagram (BDD)

Mass of charged leptons and decay (Part 1)

Gallery

Tutorial

TRAIL: Webel SysML Parsing Analysis example: A particle physics taxonomy from Wikipedia

Section

Slide kind

SysML Block Definition Diagram (BDD)

Focus BDD for the abstract ChargedLepton block

Gallery

Tutorial

TRAIL: Webel SysML Parsing Analysis example: A particle physics taxonomy from Wikipedia

Section

Slide kind

SysML Block Definition Diagram (BDD)

Focus BDD for the Positronium block

Gallery

Tutorial

TRAIL: Webel SysML Parsing Analysis example: A particle physics taxonomy from Wikipedia

Section

Slide kind

SysML Block Definition Diagram (BDD)

Internal Structure Compartment vs Composite Structure Diagram

Gallery

Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

01:02: UML 101 for model-based systems engineering with SysML

Slide kind

UML Class Diagram

UML Composite Structure Diagram

InstanceSpecifications with links and Slots

Gallery

Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

01:02: UML 101 for model-based systems engineering with SysML

Slide kind

UML Class Diagram

Association and Property - some cases

Gallery

Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

01:02: UML 101 for model-based systems engineering with SysML

Slide kind

UML Class Diagram

Associative BDD view

Gallery

Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

08:01: The building Blocks of SysML

Slide kind

SysML Block Definition Diagram (BDD)

MagicDraw/Cameo: If you want to show a Property or Port listed both in its corresponding compartment on a Class or Block symbol and as the end of an Association in the same diagram, set the display option Show Association Ends As Attributes/Ports to 'all'

Association vs Connector - detailed

Gallery

Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

08:01: The building Blocks of SysML

Slide kind

SysML Block Definition Diagram (BDD)

If instances of Blocks “communicate” with each other use an Association between them.

In contrast to Associations, which specify links between any instance of the associated Classifiers, Connectors specify links between instances playing the connected parts only.

Source

Unified Modeling Language 2.5.1

A ConnectorEnd is an endpoint of a Connector, which attaches the Connector to a ConnectableElement.

Source

Unified Modeling Language 2.5.1

Each Connector may be attached to two or more ConnectableElements, each representing a set of instances that contribute to the instantiation of the containing StructuredClassifier.

Source

Unified Modeling Language 2.5.1

In contrast to Associations, which specify links between any suitably-typed instance of the associated Classifiers, Connectors specify links between instances playing the connected roles only.

Source

Unified Modeling Language 2.5.1

Dependency vs Usage vs Association vs Connector

Gallery

Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

08:01: The building Blocks of SysML

Slide kind

SysML Block Definition Diagram (BDD)

If an abstract Block or Class in a domain model has Associations to Blocks or Classes that are not also abstract, it's often a hint that you have not identified a correct abstraction layer.

Block, Generalization, Association: Home entertainment system

Gallery

Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

08:01: The building Blocks of SysML

Slide kind

SysML Block Definition Diagram (BDD)

SysML blocks are based on UML classes as extended by UML composite structures. Some capabilities available for UML classes, such as more specialized forms of associations, have been excluded from SysML blocks to simplify the language.

Source

OMG Systems Modeling Language (SysML) 1.6

It captures the definition of blocks in terms of properties and operations, and relationships such as a system hierarchy or a system classification tree

Source

OMG Systems Modeling Language (SysML) 1.6

The Block Definition Diagram in SysML defines features of blocks and relationships between blocks such as associations, generalizations, and dependencies.

Source

OMG Systems Modeling Language (SysML) 1.6

Two UseCases specifying the same subject cannot be associated as each of them individually describes a complete usage of the subject.

Source

Unified Modeling Language 2.5.1

UseCases may have associated Actors, which describe how an instance of the Classifier realizing the UseCase and a user playing one of the roles of the Actor interact.

Source

Unified Modeling Language 2.5.1

(the value of the proxy port and the connected internal part are the same; links of associations typing the connector are between all objects and themselves, and no others)

Source

OMG Systems Modeling Language (SysML) 1.6

Ports are specialized kinds of properties, and can be shown in same way as other properties. They can appear in block compartments in the same format as other properties of their owning blocks, or as the ends of associations, with the port appearing ...

Source

OMG Systems Modeling Language (SysML) 1.6

When several item flows having the same direction are represented, only one triangle is shown, and the list of item flows, separated by a comma is presented.

Source

OMG Systems Modeling Language (SysML) 1.6

For an item flow with an item property, the label shows the name and type of the item property (in name: type format). Otherwise the item flow is labeled with the name of the classifier of the conveyed items.

Source

OMG Systems Modeling Language (SysML) 1.6

An ItemFlow describes the flow of items across a connector or an association. The notation of an item flow is a black arrowhead on the connector or association. The arrowhead is towards the target element.

Source

OMG Systems Modeling Language (SysML) 1.6

Using SysML ItemFlow on an Association to show compatibility with a physical flow

Gallery

Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

09:01: Indicating flow on Associations and Connectors

Slide kind

SysML Block Definition Diagram (BDD)

09:01: Indicating flow on Associations and Connectors

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Slides in this section

If you want to navigate the entire section including the additional explanatory text click on the title link of the first slide to view the full slide page, then use the next links to move through the slide pages. If you just want to view the slide images only in sequence, click on any slide to view it larger in a viewer, then click again to move through each slide in this tutorial trail section.

ARCHIVAL

HISTORICAL: On using the plain ol' UML InformationFlow in SysML (but please instead use a SysML ItemFlow without an 'itemProperty' on Associations)

Using SysML ItemFlow on an Association to show compatibility with a physical flow

ItemFlow without and with itemProperty - and compatible ItemFlows

DO NOT use Connector names that are identical to the names of the Associations that type them!

Properties with AdjunctProperty applied, where the principal of the AdjunctProperty is a parameter of the state machine, can be used as the end of the associations towards the parameter type.

Source

OMG Systems Modeling Language (SysML) 1.6

Properties with AdjunctProperty applied, where the principal of the AdjunctProperty is a submachine state, can be used as the end of the associations towards the sub state machine.

Source

OMG Systems Modeling Language (SysML) 1.6

Interactions in block definition diagrams can also appear with the same notation as InteractionUses.

Source

OMG Systems Modeling Language (SysML) 1.6

Properties with AdjunctProperty applied, where the principal of the AdjunctProperty is a parameter of the interaction, can be used as the end of the associations towards the parameter type.

Source

OMG Systems Modeling Language (SysML) 1.6

Properties with AdjunctProperty applied, where the principal of the AdjunctProperty is an interaction use, can be used as the end of the associations towards the interaction being used.

Source

OMG Systems Modeling Language (SysML) 1.6

In an instance of Operating Car, which is one execution of it, instances of Brake Pressure and Modulation Frequency are linked to the execution instance when they are in the object nodes of the activity.

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OMG Systems Modeling Language (SysML) 1.6

Figure 11-14 shows a block definition diagram with composition associations between the activity in Figure 11-10 and the types the object nodes in that activity, with AdjunctProperty applied to the object node type end.

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OMG Systems Modeling Language (SysML) 1.6

Like all composition, if an instance of Operating Car is destroyed, terminating the execution, the executions it owns are also terminated.

Source

OMG Systems Modeling Language (SysML) 1.6

Each instance of Operating Car is an execution of that behavior. It owns the executions of the behaviors it invokes synchronously, such as Driving.

Source

OMG Systems Modeling Language (SysML) 1.6

Figure 11-13 shows a block definition diagram with composition associations between the activities and AdjunctProperty applied to the part ends in Figures 11.10, 11.11, and 11.12, as an alternative way to show the activity decomposition of Figures ...

Source

OMG Systems Modeling Language (SysML) 1.6

Figure 11-5: Block definition diagram with activities as blocks associated with types of object nodes, variables, and parameter

Gallery

Tutorial

TRAIL: The SysML-1.6 Hybrid SUV sample and specification diagrams in MagicDraw/Cameo (with annotations) [UNDERGOING UPDATE to SysML1.7]

Section

Section: SysML-1.6 specification diagrams: 11 Activities

Slide kind

SysML Activity Diagram

SysML Block Definition Diagram (BDD)

The associations may be composition if the intention is to delete instances of the classifier flowing the activity when the activity is terminated. See example in 11.4, Usage Examples.

Source

OMG Systems Modeling Language (SysML) 1.6

Like any association end or property these can be the subject of parametric constraints, design values, units, and quantity kinds.

Source

OMG Systems Modeling Language (SysML) 1.6

Properties with AdjunctProperty applied, where the principal of the AdjunctProperty is an object node, variable, or parameter, can be used as the end of the associations toward the object node, variable, or parameter type.

Source

OMG Systems Modeling Language (SysML) 1.6

This supports linking the execution of the activity with items that are flowing through the activity or assigned to variables or parameters, and happen to be contained by an object node or assigned to a variable or parameter at the time the link exists.

Source

OMG Systems Modeling Language (SysML) 1.6

Associations can be used between activities and classifiers (blocks or value types) that are the type of object nodes, variables, or parameters in the activity, as shown in Figure 11-5.

Source

OMG Systems Modeling Language (SysML) 1.6

Properties with AdjunctProperty applied, where the principal of the AdjunctProperties are call actions, including call behavior actions, can be used as the part end of the associations. See 8.3.2.2 for constraints when AdjunctProperty is used ...

Source

OMG Systems Modeling Language (SysML) 1.6

Figure 9-12 adds a Plumbing association block for the association between Spigot and Faucet Inlet in Figure 9-11.

Source

OMG Systems Modeling Language (SysML) 1.6

Figure 9-9: Internal structure of Water Delivery association block

Gallery

Tutorial

TRAIL: The SysML-1.6 Hybrid SUV sample and specification diagrams in MagicDraw/Cameo (with annotations) [UNDERGOING UPDATE to SysML1.7]

Section

Section: SysML-1.6 specification diagrams: 09 Ports and Flows

Slide kind

SysML Internal Block Diagram (IBD)

Figure 9-8: Water Delivery association block

Gallery

Tutorial

TRAIL: The SysML-1.6 Hybrid SUV sample and specification diagrams in MagicDraw/Cameo (with annotations) [UNDERGOING UPDATE to SysML1.7]

Section

Section: SysML-1.6 specification diagrams: 09 Ports and Flows

Slide kind

SysML Block Definition Diagram (BDD)

Figure 8-13: Internal Block Diagram for WheelHubAssembly

Gallery

Tutorial

TRAIL: The SysML-1.6 Hybrid SUV sample and specification diagrams in MagicDraw/Cameo (with annotations) [UNDERGOING UPDATE to SysML1.7]

Section

Section: SysML-1.6 specification diagrams: 08 Blocks

Slide kind

SysML Internal Block Diagram (IBD)

Associations can be used between activities and classifiers (blocks or value types) that are the type of object nodes, variables, or parameters in the activity, as shown in Figure 11-5.

Source

OMG Systems Modeling Language (SysML) 1.6

When composition is used with activity blocks, the termination of execution of an activity on the whole end will terminate executions of activities on the part end of the links.

Source

OMG Systems Modeling Language (SysML) 1.6

Activities as blocks can have associations between each other, including composition associations. Composition means that destroying an instance at the whole end destroys instances at the part end.

Source

OMG Systems Modeling Language (SysML) 1.6

Figure D.34 - Defining Straight-Line Vehicle Dynamics Mathematical Constraints (Definition of Dynamics)

Gallery

Tutorial

TRAIL: The SysML-1.6 Hybrid SUV sample and specification diagrams in MagicDraw/Cameo (with annotations) [UNDERGOING UPDATE to SysML1.7]

Section

Section: SysML-1.6: HSUV sample

Slide kind

SysML Block Definition Diagram (BDD)

These multiplicities may be assumed if not shown on a diagram. To avoid confusion, any multiplicity other than the default should always be shown on a diagram.

Source

OMG Systems Modeling Language (SysML) 1.7

A part or shared association has a default multiplicity of [0..1] on the black or white diamond end. A unidirectional association has a default multiplicity of 1 on its target end.

Source

OMG Systems Modeling Language (SysML) 1.7

SysML defines defaults for multiplicities on the ends of specific types of associations.

Source

OMG Systems Modeling Language (SysML) 1.7

Like UML, SysML defines no specific semantics or constraints for properties with shared aggregation, but particular models or tools may interpret them in specific ways.

Source

OMG Systems Modeling Language (SysML) 1.6

SysML also supports properties with shared aggregation, as shown by a white diamond symbol on an association.

Source

OMG Systems Modeling Language (SysML) 1.6

Figure D.16 - Defining Structure of the Hybrid SUV System (Hybrid SUV Breakdown)

Gallery

Tutorial

TRAIL: The SysML-1.6 Hybrid SUV sample and specification diagrams in MagicDraw/Cameo (with annotations) [UNDERGOING UPDATE to SysML1.7]

Section

Section: SysML-1.6: HSUV sample

Slide kind

SysML Block Definition Diagram (BDD)

MagicDraw/Cameo tool support for Association composition "trees" is not good, and they end up being fiddly to maintain (and they can also cause issues for InformationFlows). Avoid them!

As an alternative to composition Association "trees" consider instead using symbol resize to visually "bracket" composed items (can however be a bit fiddly).

Figure D.15 - Defining the Automotive Domain (Automotive Domain Breakdown)

Gallery

Tutorial

TRAIL: The SysML-1.6 Hybrid SUV sample and specification diagrams in MagicDraw/Cameo (with annotations) [UNDERGOING UPDATE to SysML1.7]

Section

Section: SysML-1.6: HSUV sample

Slide kind

SysML Block Definition Diagram (BDD)

HSUV trail slide: Figure D.4: IBD: Could not show Connector typed by an anonymous Association as 'connectorName:' with trailing colon

SysML-1.6: For the Connectors in Figure D.4 to be typed by the implied anonymous Associations need define them in Figure D.15 (or elsewhere) between 'HybridSUV' and: 'Driver', 'Maintainer', 'Passenger', 'Baggage', 'Environment'.

Figure D.5 - Establishing Top Level Use Cases for the Hybrid SUV

Gallery

Tutorial

TRAIL: The SysML-1.6 Hybrid SUV sample and specification diagrams in MagicDraw/Cameo (with annotations) [UNDERGOING UPDATE to SysML1.7]

Section

Section: SysML-1.6: HSUV sample

Slide kind

SysML UseCase Diagram

Note how the relationships in this diagram are also reflected in the Automotive Domain Model Block Definition Diagram, Figure D.15.

Source

OMG Systems Modeling Language (SysML) 1.6

The associations among the classes may represent abstract conceptual relationships among the entities, which would be refined in subsequent diagrams.

Source

OMG Systems Modeling Language (SysML) 1.6

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