SysML v2 diagram coverage

Syside Diagram Engine 0.11.0+, against the OMG SysML v2 specification (SysML 2.0, release 2026-04).

The Syside Diagram Engine renders diagrams directly from SysML v2 textual models. The tables below list its coverage of the standard graphical notation, domain by domain.

Note

The Syside Diagram Engine powers both the command line (syside viz) and diagram panels in Modeler, so the coverage below applies to both.

The Tom Sawyer SysMLv2 Viewer is available as an opt-in alternative in Modeler. Enable it in Configure Modeler.

Graphical notation

Each element is marked with one of four statuses:

• Supported - fully implemented

• Partial - partially implemented

• Planned - on the roadmap

• Out of scope - no current plans

Standard views

Element	Description	Status	Rendered example
General view (GeneralView)	Any elements and relationships (default view)	Supported
Interconnection view (InterconnectionView)	Parts and their connections through ports and parameters	Supported
Action flow view (ActionFlowView)	Flow of actions, with forks, joins, and decisions	Supported
State transition view (StateTransitionView)	States and their transitions	Supported
Sequence view (SequenceView)	Lifelines, messages, event ordering	Supported
Grid view (GridView)	Tables and matrices, exported as CSV via syside table export	Supported
Browser view (BrowserView)	Interactive containment tree	Supported
Geometry view (GeometryView)	2D/3D spatial visualization	Out of scope

Rendering styles

Element	Description	Status	Rendered example
Nested	Children drawn inside their parents	Supported
Tree	Decomposition hierarchy with connecting edges	Supported

Foundations

Element	Description	Status	Rendered example
Elements & Relationships	Node and edge foundations for required diagram types	Supported
Dependencies	Dependency arrows between elements	Supported
Annotations	Comments, metadata and documentation notes	Supported
Packages & Namespaces	Package boxes, tab headers, imports	Supported
Definitions & Usages	Definition/usage node shapes, specialization/typing edges	Supported
Attributes	Attribute compartments and value properties	Supported
Enumerations	Enumeration nodes and literal members	Supported
Metadata	Metadata annotations and semantic metadata	Supported

Structure

Element	Description	Status	Rendered example
Occurrences	Occurrence definitions and usages, time slices, snapshots	Supported
Items	Item definition and usage nodes	Supported
Parts	Part definition and usage nodes	Supported
Variations & Variants	Variation definitions and variant members	Supported

Ports & connections

Element	Description	Status	Rendered example
Ports	Port shapes on node edges, direction indicators, proxy ports	Supported
Conjugated Ports	Conjugated port prefix on nodes and boundary ports	Supported
Connections	Binary/n-ary connections, bindings, successions	Supported
Interfaces	Interface connections with semicircle markers	Supported
Allocations	Allocation edges between elements	Supported
Flows & Messages	Item flows, succession flows, message labels	Supported

Behavior

Element	Description	Status	Rendered example
Actions	Action nodes, parameters, control nodes, successions with guards	Supported
Send & Accept Actions, Control Structures	Send/accept actions, if-then-else and loop structures	Supported
Swim Lanes	Partitioned action-flow lanes	Planned
States	State nodes, transition edges, entry/do/exit compartments, guard conditions	Supported
Calculations	Calculation nodes and result expressions	Supported

Requirements & cases

Element	Description	Status	Rendered example
Constraints	Constraint nodes, assert/assume constraints	Supported
Requirements	Requirement nodes, satisfy/verify/require edges, concerns	Supported
Cases	Case nodes with objective compartments	Supported
Analysis Cases	Analysis case nodes, trade-off analysis	Supported
Verification Cases	Verification case nodes with verdict results	Supported
Use Cases	Use case nodes, actor stick figures, include edges	Supported

Sequence views

Element	Description	Status	Rendered example
Event Occurrences	Lifeline event markers for sequence diagrams	Supported
Nested Sequence Views	References to another sequence view	Planned

Views

Element	Description	Status	Rendered example
Views & Viewpoints	View frames, viewpoint nodes, expose edges	Supported
User-Defined Keywords	Custom keywords via semantic metadata	Supported

Generating diagrams

• Quickstart - From model to diagrams in a single command

• Diagram generation - Rendering workflows and examples

• Diagram views - Authoring views for repeatable diagrams model content