part property

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

PAD for eliciting the letters of an English-language pangram

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

Focus BDD for block EnglishPangram

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

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

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

Focus BDD for block FoxDogPangramContext

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

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

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TRAIL: SysPhS-1.1 specification body figures in MagicDraw/Cameo SysML vs Modelica [using Wolfram SystemsModeler]

SysML/SysPhS-1.1: Anonymous Property or Action names may not be an option if: You are exporting to Modelica or Simulink; You absolutely need names for generated query reports (such as generated Interface Control Documents).

MagicDraw/Cameo: You can drag a Class symbol onto a Class symbol (in a Class Diagram) or a Block symbol or ValueType symbol onto or Block symbol (in a Block Definition Diagram) to create a new part property or value property

SysPhS-1.1: Apparent use of part Property with «port» keyword (instead of standard SysML Port) leads to property path symbols appearing inside the boundary of context blocks (instead of within a Port symbol on the boundary) in IBDs and Parametric Diagrams

Webel vs SysPhS-1.1: Recommend use standard SysML Ports instead of block part property with «port» keyword

Part properties, typed by blocks ... represent components in this system. They are connected to each other through ports, which represent openings in the tanks and pipe ...

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SysPhS-1.1

Part properties, typed by blocks ... represent the components of the system. They are connected through ports .. which represent signal outputs and inputs ...

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SysPhS-1.1

Figure 18, 19, 20: Block, Part, Generalization, Redefinition.

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

Context-specific values tree in SysML - DEMO OVERVIEW

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08:04: Deep configuration using SysML context-specific values

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

Values - LuxuryPhoneConfig - IBD

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08:04: Deep configuration using SysML context-specific values

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

Values - LuxuryPhoneConfig - BDD

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08:04: Deep configuration using SysML context-specific values

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

Values - SmartPhone with 2 PhoneCameras - IBD

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08:04: Deep configuration using SysML context-specific values

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

Values - SmartPhone with 2 PhoneCameras - BDD

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08:04: Deep configuration using SysML context-specific values

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

Values - CustomCamera with customised Sensor with pixels - IBD

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08:04: Deep configuration using SysML context-specific values

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

Values - CustomCamera with customised Sensor with pixels - BDD

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08:04: Deep configuration using SysML context-specific values

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

Values - BasicCamera with Sensor with pixels - IBD

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08:04: Deep configuration using SysML context-specific values

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

Values - BasicCamera with Sensor with pixels - BDD

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08:04: Deep configuration using SysML context-specific values

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

Instances with part-carrying Slots

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08:02: The SysML ValueType, Unit, and using values

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

Associative BDD view

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08:01: The building Blocks of SysML

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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'

Ports are special cases of properties, and have a variety of notations ...

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A part or value property is always shown on an internal block diagram with a solid-outline box.

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Four general categories of properties of blocks are recognized in SysML: parts, references, value properties, and constraint properties.

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

SysML Part Property representations

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08:01: The building Blocks of SysML

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A property typed by a SysML Block that has composite aggregation is classified as a part property, except for the special case of a constraint property ...

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OMG Systems Modeling Language (SysML) 1.7beta1

A property typed by a Block that does not have composite aggregation is classified as a reference property.

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A common interpretation of composite Aggregation of a part property in SysML domain modelling is that if the owner Block is "destroyed" so is the child part property. Webel adopts these semantics always.

SysML also allows each usage to define context-specific values and constraints associated with the individual usage, such as 25 psi for the front tires and 30 psi for the rear tires.

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For example, a block that represents the definition of a wheel can be used in different ways. The front wheel and rear wheel can represent different usages of the same wheel definition.

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A part belonging to a block, for example, may be typed by another block. The part defines a local usage of its defining block within the specific context to which the part belongs.

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A property can represent a role or usage in the context of its enclosing block. A property has a type that supplies its definition.

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A block can include properties to specify its values, parts, and references to other blocks.

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Parts in these systems may interact by many different means, such as software operations, discrete state transitions, flows of inputs and outputs, or continuous interactions.

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The specific kinds of components, the kinds of connections between them, and the way these elements combine to define the total system can all be selected according to the goals of a particular system model.

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Blocks provide a general-purpose capability to model systems as trees of modular components.

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

Allocation via swimlanes in definition allocation mode - DOs and DON'Ts

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15:01: The Allocate relationship and functional analysis

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

Allocation via swimlanes in usage allocation mode - DOs and DON'Ts

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15:01: The Allocate relationship and functional analysis

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

MagicDraw/Cameo: In SysML Activity Diagrams you can only set the allocation mode in to 'usage' or 'definition' for an entire AllocateActivityPartition group at once, not for individual AllocateActivityPartition columns or rows.

Allocation of a CallBehaviorActionAction to a PartProperty via an AllocateActivityPartition "swimlane"

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15:01: The Allocate relationship and functional analysis

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

MagicDraw/Cameo: You can allocate an Action to any NamedElement in the model via its specification box under the Allocations section by dragging and dropping an element (such as a part Property) from the model browser onto the Allocate To field.

Functional allocation of a CallBehaviorAction (usage level) in an Activity Diagram to elements in a BDD

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15:01: The Allocate relationship and functional analysis

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

Structural Allocation: USB - Progressive refinement using Allocations

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15:01: The Allocate relationship and functional analysis

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

Functional allocation of an Activity (definition level) in a BDD with callouts

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15:01: The Allocate relationship and functional analysis

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«physicalRequirement»: satisfied by a structural element.

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«designConstraint»: satisfied by a block or part.

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

MagicDraw/Cameo: Satisfy Requirement Matrix: Hybrid SUV vs Block and PartProperty (relations only)

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16:01: Requirements engineering in SysML

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MagicDraw/Cameo: relationship dependency matrix

MagicDraw/Cameo: relationship matrix

MagicDraw/Cameo: The default 'Implied Satisfy' relation will claim a Requirement is satisfied by any direct composite aggregation parent Block or composite aggregation ancestor Block of a part property

Webel has a proposal for clearly revealing anonymous typed elements in SysML callouts and on derived Properties from operation queries.

SysML: Non-anonymous (concise please) block property names and port names may help a little in tracing participation of properties and ports in requirements relationships and play nicely with current SysML callout style. Short role indicators are best!

When satisfying a Requirement with a Block, you need to ask whether the Block (all instances) satisfies the Requirement or whether only a particular usage of the Block (such as a part property) Satisfies the Requirement!

FullPort::2_not_bound_to_fullport Binding connectors shall not link full ports (either directly or indirectly through other binding connectors) to other composite properties of the block owning the full port (or that blocks generalizations or specializati

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They cannot be behavioral ports, or [be] linked to internal parts by binding connectors, because these constructs imply identity with the owning block or internal parts.

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Full ports specify a separate element of the system from the owning block or its internal parts. They might have their own internal parts and behaviors to support interaction with the owning block, its internal parts, or external blocks.

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Proxy ports do not specify their own behaviors or internal parts, and shall be typed by interface blocks. Their nested ports shall also be proxy ports.

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This aggregate is not a separate element of the system, and only groups the internal parts for purposes of binding to the proxy port.

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When a proxy port is connected to multiple internal parts, the connectors have the same semantics as a single binding connector to an aggregate of those parts, supporting all their features, and treating flows and invocations from outside the aggregate...

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(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)

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When a proxy port is connected to a single internal part [or port or internal part], the connector shall be a binding connector, or have the same semantics as a binding connector ...

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Proxy ports can be connected to internal parts or ports on internal parts, identifying features on those parts or ports that are available to external blocks.

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

ProxyPort minimal example - delegation to part

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09:06: ProxyPorts and FullPorts

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

MagicDraw/Cameo 19SP3: Validation of required and provided Interfaces proxied between a ProxyPort and a part with a compatible contract fails

ItemFlow without and with itemProperty - and compatible ItemFlows

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09:01: Indicating flow on Associations and Connectors

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SysML-1.6: in 'Figure 16-3: Links between requirements and design' on block BrakeSystem the part 'r:BrakeLine' should probably be 'r:RearBrake'

The need also arises, when adding detail to a structural model, to allocate a connector (at a more abstract level) to a part (at a more concrete level).

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For example, if a particular user model includes an abstract logical structure, it may be important to show how these model elements are allocated to a more concrete physical structure.

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Systems engineers have frequent need to allocate structural model elements (e.g., blocks, parts, or connectors) to other structural elements.

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

SysML-1.6: The spec 'Figure 15-8: Example of Structural Allocation' has an IBD for Block1, which only makes sense if 'Abstract Reference' and 'Concrete Example' are meant to be part Properties (not Blocks)

Figure 15-8: Example of Structural Allocation

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Section: SysML-1.6 specification diagrams: 15 Allocations

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SysML Package Diagram

AVOID "mixed" functional (behavioral) allocation levels! DO NOT Allocate from Usage level (Action) to Definition level (Block) or from Definition level (Activity) to usage level (part Property) - even if formally permitted in SysML.

The allocation to Activity6 comes from a nested part, and uses the attributes of DirectedRelationshipPropertyPath to specify the path of properties to reach that part. The sourceContext of the allocation is Block4 and the sourcePropertyPath is (Part5).

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Note that the AllocateActivityPartition, if used in this manner, is unambiguously associated with behavior allocation.

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Specific behavior allocation of Actions to Parts are depicted in Figure 15-4.

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

Figure 15-4: Behavior Allocation

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Section: SysML-1.6 specification diagrams: 15 Allocations

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Figure 9-13 shows the internal structure for the Plumbing association block, which includes a pipe and two fittings (the additional part and connector definitions are omitted for brevity).

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

Figure 8-13: Internal Block Diagram for WheelHubAssembly

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Section: SysML-1.6 specification diagrams: 08 Blocks

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

MagicDraw/Cameo: Does not seem to support showing a trailing colon ':' in labels of Properties or Connectors that are untyped OR are typed by anonymous Classes, Blocks, or Associations. (The notation is used in some SysML specification diagrams.)

Figure D.39 - Flow Allocation to Power Subsystem (Power Functional Allocation)

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

Figure D.25 - Detailed Internal Structure of Fuel Delivery Subsystem (Internal Block Diagram)

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Inversely, the InternalCombustionEngine can read the isControlOn property of the PowerControlUnit across the connector to determine if the unit is still operating, and possibly shut down if it is not.

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By invoking these operations, the PowerControlUnit can set the throttle and mixture of the InternalCombustionEngine. The PowerControlUnit can also read properties of the InternalCombustionEngine across the connector to find out the rpm, temperature, ...

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Since the ecu:PowerControlUnit part and ice:InternalCombustionEngine part are connected via these ports, the ecu:PowerControlUnit part may invoke setThrottle and setMixture on the ice:InternalCombustionEngine part via its ice port, across the connector...

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This means the provided features of ICE are provided by the ctrl port of InternalCombustionEngine, and required by the ice port of PowerControlUnit, while the required features of ICE are required by the ctrl port of InternalCombustionEngine, and provided

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For example, the ICE block specifies the provided operations setMixture and setThrottle, the provided properties RPM, temperature, and isKnocking, and required property isControlOn, as shown in Figure D.20. This block types the ctrl port of ...

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The ecu:PowerControlUnit part has three ports with required and provided features, each connected to a port of another part. Each of the ports in this example is typed by a block specifying provided and required features available via connectors ...

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In MagicDraw/Cameo an assigned stereotype of a Classifier that types an instance-like element (such as a part Property) "shines through" unless it has an instance-level stereotype assigned. This is sometimes called a "secondary stereotype".

In MagicDraw/Cameo if the Type of a Property has a Composite Structure Diagram or Internal Block Diagram defined it will act as the default hyperlink target for the Property

In MagicDraw/Cameo one can just drag the IBD or BDD of a Block from the model browser onto parts that are typed by that Block to make them the default hyperlink target for that part (so one can just "open the parts up" recursively to navigate the system).

The SysML specification refers to 'part property' as a concept (as a type of block property) but there is no stereotype PartProperty; MagicDraw/Cameo as an additional stereotype PartProperty to encapsulate the concept

The lifelines on Figure D.10 (“whitebox” sequence diagram) need to come from the Power System decomposition. This now begins to consider parts contained in the HybridSUV block.

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

Figure D.4 - Establishing the Context of the Hybrid SUV System using a User-Defined Context Diagram

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

Figure D.22 - Consolidating Connectors into the CAN Bus (CAN Bus Description)

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