Releases: Systems-Modeling/SysML-v2-Release
2024-05 - SysML v2 Release
Pilot Implementation
This is an incremental installation release of the pilot implementation of the SysML v2 language, API and services. Release notes for the language pilot implementation are available at
The API and Services implementation is still unchanged from 2024-02.
The release also includes both textual notation and XMI versions of the standard model libraries, in the sysml.library and sysml.library.xmi directories. Note, however, that the XMI files use an Eclipse XMI representation (.kermlx and .sysmlx representations) that is not fully normative OMG XMI. The XMI has been exported without derived property values or implied relationships.
To install, download and decompress one of the files below and follow the instructions in the README file.
NOTE. Even though the files below are labeled "Source code", they simply contain the entire compressed contents of this repository. They do not actually include the pilot implementation source code, which is maintained in separate development repositories.
Issue Resolutions
This release includes the Beta 2 specification documents updated for all issue resolutions approved by the KerML, SysML v2 and Systems Modeling API and Services Finalization Task Forces (FTFs). These versions of the specifications have been approved by the OMG Architecture Board and authorized for release by the OMG Platform Technology Committee (PTC). However, the PTC also voted to charter second FTFs for all the specifications, to continue working on additional issue resolutions for another six months, with the Beta 2 version as the new baseline. As for the first set of FTFs, subsequent pilot implementation releases will include incremental updates implementing issue resolutions as they are voted on by the second set of FTFs, but none have yet been approved. Change tracking will be relative to the Beta 2 baseline.
2024-04 - SysML v2 Release
Pilot Implementation
This is an incremental installation release of the pilot implementation of the SysML v2 language, API and services. Release notes for the language pilot implementation are available at
The API and Services implementation is still unchanged from 2024-02.
The release also includes both textual notation and XMI versions of the standard model libraries, in the sysml.library and sysml.library.xmi directories. Note, however, that the XMI files use an Eclipse XMI representation (.kermlx and .sysmlx representations) that is not fully normative OMG XMI. The XMI has been exported without derived property values or implied relationships.
To install, download and decompress one of the files below and follow the instructions in the README file.
NOTE. Even though the files below are labeled "Source code", they simply contain the entire compressed contents of this repository. They do not actually include the pilot implementation source code, which is maintained in separate development repositories.
Issue Resolutions
This release includes the Beta 2 specification documents updated for all issue resolutions approved by the KerML, SysML v2 and Systems Modeling API and Services Finalization Task Forces (FTFs). These versions of the specifications have been approved by the OMG Architecture Board and authorized for release by the OMG Platform Technology Committee (PTC). However, the PTC also voted to charter second FTFs for all the specifications, to continue working on additional issue resolutions for another six months, with the Beta 2 version as the new baseline. As for the first set of FTFs, subsequent pilot implementation releases will include incremental updates implementing issue resolutions as they are voted on by the second set of FTFs, but none have yet been approved. Change tracking will be relative to the Beta 2 baseline.
2024-03 - SysML v2 Release
Pilot Implementation
This is an incremental installation release of the pilot implementation of the SysML v2 language, API and services. Release notes for the language pilot implementation are available at
The API and Services implementation is still unchanged from 2024-02.
The release also includes both textual notation and XMI versions of the standard model libraries, in the sysml.library and sysml.library.xmi directories. Note, however, that the XMI files use an Eclipse XMI representation (.kermlx and .sysmlx representations) that is not fully normative OMG XMI. The XMI has been exported without derived property values or implied relationships.
To install, download and decompress one of the files below and follow the instructions in the README file.
NOTE. Even though the files below are labeled "Source code", they simply contain the entire compressed contents of this repository. They do not actually include the pilot implementation source code, which is maintained in separate development repositories.
Issue Resolutions
This release includes the Beta 2 specification documents updated for all issue resolutions approved by the KerML, SysML v2 and Systems Modeling API and Services Finalization Task Forces (FTFs). These versions of the specifications have been approved by the OMG Architecture Board and authorized for release by the OMG Platform Technology Committee (PTC). However, the PTC also voted to charter second FTFs for all the specifications, to continue working on additional issue resolutions for another six months, with the Beta 2 version as the new baseline. As for the first set of FTFs, subsequent pilot implementation releases will include incremental updates implementing issue resolutions as they are voted on by the second set of FTFs. Change tracking will be relative to the Beta 2 baseline.
2024-02 - SysML v2 Release
Pilot Implementation
This is an incremental installation release of the pilot implementation of the SysML v2 language, API and services. Release notes are available at
- SysML v2 Pilot Implementation - 2024-02
- SysML v2 API and Services - 2024-02
- SysML v2 API Cookbook - 2024-02
The release also includes both textual notation and XMI versions of the standard model libraries, in the sysml.library and sysml.library.xmi directories. Note, however, that the XMI files use an Eclipse XMI representation (.kermlx and .sysmlx representations) that is not fully normative OMG XMI. The XMI has been exported without derived property values or implied relationships.
To install, download and decompress one of the files below and follow the instructions in the README file.
NOTE. Even though the files below are labeled "Source code", they simply contain the entire compressed contents of this repository. They do not actually include the pilot implementation source code, which is maintained in separate development repositories.
Issue Resolutions
This release includes the Beta 2 specification documents with all issue resolutions approved by the KerML, SysML v2 and Systems Modeling API and Services Finalization Task Forces (FTFs), as delivered for approval by the OMG Architecture Board. While the work of these FTFs is now complete, it is planned to charter a second set of FTFs to continue with additional finalization work. So these specifications must still be considered preliminary.
Resolutions to the following issues are included in this release, in addition to those included previously in release 2024-01. The subclauses of each document affected by a resolution are tagged in the document with the corresponding issue key and title.
KerML Specification
KERML-22 Name all associations in the KerML abstract syntax
KERML-23 Follow typographical conventions in the KerML Metamodel clause
KERML-45 LinkObject is irreflexive
KERML-46 Intersection missing for some multiple specializations
KERML-82 checkConnectorTypeFeaturing is not correct
KERML-98 Comment Locale not in textual notation
KERML-110 Disjoining example conflicts with textual description
KERML-120 FlowTransferBefore needs end feature declarations
KERML-125 specializesFromLibrary arguments use inconsistent notation for strings
KERML-165 Exponentiation should be right-associative
KERML-174 DataType Disjointness Clarification
KERML-307 User-defined keywords are not allowed on metadata features
KERML-309 package "Interactions TBD" should not be included in the XMI file
SysML Specification, Part 1: Language
SYSML2-29 Name all associations in the SysML abstract syntax
SYSML2-30 Follow typographical conventions in the SysML Metamodel clause
SYSML2-85 Effective name is not correct for a redefined perform action usage
SYSML2-158 Example FrontAxle definition
SYSML2-159 Example analysis case fuelEconomyAnalysis
SYSML2-185 ISQ in specification and libraries not aligned
SYSML2-426 specializesFromLibrary arguments use inconsistent notation for strings
SYSML2-553 checkRequirementUsageObjectiveRedefinition is incorrect
SYSML2-631 User-defined keywords are not allowed on metadata
SYSML2-634 VerificationCase::subVerificationCases is typed incorrectly
SYSML2-635 Issues with SysML grammar
SYSML2-636 package View and Viewpoint TBD should not be included in the xmi file
SYSML2-637 User-defined keywords are not allowed on enumeration definitions
SYSML2-643 Comment locale not in textual notation
SYSML2-783 Parsing KerML Feature elements from SysML textual notation
SYSML2-844 Annotation diagram needs to be updated
SySML Specification, Part 2: SysML v1 to v2 Transformation
None.
Systems Modeling API and Services Specification
None.
2024-01 - SysML v2 Release
Pilot Implementation
This is an incremental installation release of the pilot implementation of the SysML v2 language, API and services. Release notes are available at
- SysML v2 Pilot Implementation - 2024-01
- SysML v2 API and Services - 2024-01
- SysML v2 API Cookbook - 2024-01
The release also includes both textual notation and XMI versions of the standard model libraries, in the sysml.library and sysml.library.xmi directories. Note, however, that the XMI files use an Eclipse XMI representation (.kermlx and .sysmlx representations) that is not fully normative OMG XMI. The XMI has been exported without derived property values or implied relationships.
To install, download and decompress one of the files below and follow the instructions in the README file.
NOTE. Even though the files below are labeled "Source code", they simply contain the entire compressed contents of this repository. They do not actually include the pilot implementation source code, which is maintained in separate development repositories.
Issue Resolutions
This release includes updates to the Beta 1 specification documents corresponding to issue resolutions approved to date by the KerML, SysML v2 and Systems Modeling API and Services Finalization Task Forces (FTFs). Note, however, that these resolutions must be considered preliminary until the FTFs complete and their reports are approved by the OMG.
Resolutions to the following issues are included in this release, in addition to those included previously in release 2023-11. The subclauses of each document affected by a resolution are tagged in the document with the corresponding issue key and title.
KerML Specification
KERML-7 isDirected, definition, semantics
KERML-21 Add a property for Annotations owned by an AnnotatingElement
KERML-24 Connector declaration does not allow a feature value
KERML-25 Reflective KerML abstract syntax model has inconsistencies
KERML-39 Link participant feature called an association end
KERML-44 Spatial links can be occurrences
KERML-49 Some readonly features are intended to have changing values
KERML-54 Subsetting::/owningType is mandatory
KERML-61 PrimaryExpressionMember production should generate a ParameterMembership
KERML-75 Specify default direction for the ownedParameterMember of a ParameterMembership
KERML-90 The MetadataFeature::metaclass multiplicity is too restrictive
KERML-104 Type Membership Multiplicity text conflict
KERML-105 Car necessary and sufficiency example
KERML-106 Protected membership inheritance through Specialization type
KERML-108 Conjugation Textual Redundant Word
KERML-109 Textual Syntax allows multiple ConjugationParts on a Type
KERML-111 Disjoining textual notation typo on disjoiningType
KERML-114 FeatureDeclaration ConjugationPart lexical element incorrect reference
KERML-138 oclAsType applied to resolveGlobal
KERML-139 OclisKindOf applied to Namespace::resolve()
KERML-154 Directed features inherited from a conjugated type not handled properly
KERML-155 Expression::result has an incorrect subsetting
KERML-158 InsideOf association end feature redefines cross feature
KERML-161 Misspelling
KERML-167 Typo in Conjugation Description
KERML-169 Feature isDerived metaproperty Typo
KERML-170 checkFeatureSubobjectSpecialization incorrect Font
KERML-171 Feature Chain relationships are inconsistent with the concrete syntax
KERML-172 ClassifierDeclaration concrete syntax typo
KERML-173 Classifier Description Typo
KERML-179 checkAssociationStructureSpecialization invalid reference
KERML-181 Model Interchange Overview Typo
KERML-189 non-terminal does not exist in the specification
KERML-190 OwnedExpression missing ConditionalBinaryOperatorExpression
KERML-191 Comment textual syntax defined differently to implementation
KERML-194 validateRedefinitionDirectionConformance does not account for conjugation
KERML-199 validateMultiplicityRangeBoundResultTypes constraint is too strong
KERML-200 Annex A (Model Execution) minor errors
KERML-204 Behavior portions must be classified by the same behavior they are portions of
KERML-231 LinkObject disjointness is redundant
KERML-232 Additional problems with deriveFeatureType
KERML-236 Association SourceType Cardinality Contradiction
KERML-237 Link Participant Plurality Typo in OCL
KERML-239 SelfLink::thatThing does not exist in Links Model Library
KERML-240 Typo in Multiplicities Overview
KERML-241 Typo in Multiplicity Ranges Semantics
KERML-242 Typo in checkAssociationBinarySpecialization OCL
KERML-248 Error in Expression modelLevelEvaluable operation OCL
KERML-249 Typo in Function Abstract Syntax Description
KERML-250 Typo in Function Declaration Overview
SysML Specification, Part 1: Language
SYSML2-59 Inconsistent graphical notation for succession, message and flow edges
SYSML2-80 Reflective SysML abstract syntax model has inconsistencies
SYSML2-182 Universal features can have many values
SYSML2-226 Incorrect reference to SysML v1 to SysML v2 Transformation
SYSML2-318 Adornments on ends missing in graphical syntax
SYSML2-430 Subsetting of subjectParameter properties is wrong
SYSML2-480 Missing production for use case actors and subject
SYSML2-499 Assignments parsed without a target will fail validateAssignmentActionUsageArguments
SYSML2-529 OCL for deriveViewDefinitionViewCondition and deriveViewUsageViewCondition are wrong
SYSML2-552 Errors in the TradeStudy domain model
SYSML2-554 Enumeration definitions VerdictKind and VerificationMethodKind are missing from specification document
SYSML2-556 Typos in Quantities and Units Domain Library
SYSML2-558 checkStateUsageSpecialization constraint is incorrect
SYSML2-560 Add note on FlowFeature direction to textual notation grammar
SYSML2-572 Need to remove action control nodes from Statemachines GBNF productions
SYSML2-597 checkFlowConnectionUsageSpecialization is too restrictive about FlowConnections
SYSML2-599 Wrong production for adding state-def as a definition node
SYSML2-611 OCL rule deriveDefinitionOwnedFlow references non-existent class called FlowUsage
SYSML2-612 OCL rule deriveUsageNestedFlow references non-existent class called FlowUsage
SYSML2-616 User-defined keywords are not allowed on control nodes
SYSML2-620 Textual notation production for Comment is wrong
SYSML2-626 Incorrect textual notation for TextualRepresentation
SySML Specification, Part 2: SysML v1 to v2 Transformation
[SYSML2-227](https:...
2023-11 - SysML v2 Release
Pilot Implementation
This is an incremental installation release of the pilot implementation of the SysML v2 language, API and services. Release notes for the language pilot implementation are available at
The API and Services implementation is still unchanged from 2023-02.
To install, download and decompress one of the files below and follow the instructions in the README file.
NEW. For the first time, this release includes XMI versions of the standard model libraries, in the sysml.library.xmi directory. Note that these files use an Eclipse XMI representation (.kermlx and .sysmlx representations) that is not fully normative OMG XMI. The XMI has been exported without derived property values or implied relationships.
NOTE. Even though the files below are labeled "Source code", they simply contain the entire compressed contents of this repository. They do not actually include the pilot implementation source code, which is maintained in separate development repositories.
Issue Resolutions
This release includes updates to the Beta 1 specification documents corresponding to issue resolutions approved to date by the KerML, SysML v2 and Systems Modeling API and Services Finalization Task Forces (FTFs). Note, however, that these resolutions must be considered preliminary until the FTFs complete and their reports are approved by the OMG.
Resolutions to the following issues are included in this release, in addition to those included previously in release 2023-10. The subclauses of each document affected by a resolution are tagged in the document with the corresponding issue key and title.
KerML Specification
KERML-38 Binary association ends always unique
KERML-42 Occurrences can be data values
KERML-43 Performances can be objects, behaviors can be structures
KERML-56 Universal features can have many values
KERML-77 Problems with IfThenElsePerformance
KERML-88 BaseFunctions::',' has a bad parameter declaration
KERML-175 Natural unnecessary explicit general type declaration
KERML-176 Base Overview Typo
KERML-177 Legacy, so incorrect, wording in Anything Description
KERML-178 Anything.self subsetting Inconsistent declaration with Base.kerml declaration
KERML-180 Occurrences Overview Typo
KERML-182 Update Kernel Semantic Library for validateRedefinitionDirectionConformance constraint
KERML-184 Update Kernel Model Libraries for validateFeatureValueOverriding constraint
KERML-186 Update semantic model of invariants for validateExpressionResultExpressionMembership constraint
KERML-188 DataFunctions::Min and Max should not be capitalized
KERML-195 Transfer sourceOutput and targetInput directions
KERML-198 Wrong documentation format for class Occurrence in Semantic Library
KERML-227 Documentation of features in Transfers library model is wrong
SysML Specification, Part 1: Language
SYSML2-68 Graphical notation for nested reference usage needs resolution
SYSML2-79 View::viewpointSatisfactions should subset viewpointChecks and checkedConstraints
SYSML2-83 Narrow down return types of SpatialItem::PositionOf and ::CurrentPositionOf
SYSML2-102 Semantic constraint for target of AssignmentActionUsage is missing
SYSML2-219 Action::decisionTransitions should subset Action::transitions
SYSML2-295 Causation end features need to redefine source and target
SYSML2-305 Message and flow connection ends should be occurrence usages
SYSML2-331 Incomplete textual notation in example "Subsetting"
SYSML2-333 Incomplete textual notation in example "Variants Compartment"
SYSML2-346 Incorrect notation in example "Binding Connection"
SYSML2-349 Incorrect item flow notation in example "Interface as Node"
SYSML2-350 Incomplete flow notation in example "Flow as Node"
SYSML2-378 Sample::calculation has an incorrect type
SYSML2-452 misspelled ConjugatePortTyping should be ConjugatedPortTyping
SYSML2-453 Text error in List property construction
SYSML2-454 PrefixComment should not be a production for AnnotatingElement
SYSML2-457 Missing graphical BNF production for keyword extension using #key word in guillemet in compartments
SYSML2-458 Missing production for connections with an edge on one or both ends
SYSML2-467 RequirementConstraintUsage should not have a RequirementBody
SYSML2-468 binding connector production overly constraining
SYSML2-488 Constraints missing to enforce variations being abstract
SYSML2-490 Actions::acceptSubactions and sendSubactions should subset acceptActions and sendActions
SYSML2-491 KerML constraint requires updates to Systems Library models
SYSML2-492 KerML constraint requires updates to Domain Library models
SYSML2-495 Textual notation BNF for TriggerExpression is wrong
SYSML2-497 validateTriggerInvocationExpressionAfterArgument constraint is too strong
SYSML2-498 validateTriggerInvocationExpressionWhenArgument constraint is wrong
SYSML2-500 The derivation of AssignmentActionUsage::referent is wrong
SySML Specification, Part 2: SysML v1 to v2 Transformation
SYSML2-139 Transformation does not cover SysMLv1::~InterfaceBlock
SYSML2-280 ElementMain_Mapping::ownedRelationship is wrong
SYSML2-459 Resolution of approved issue SYSML2-241 is not considered by merged issue SYSML2-240
SYSML2-509 Remove sentence in Classification overview section
SYSML2-511 Remove sentence in StateMachines overview section
SYSML2-513 Missing text in some main mapping sections
Systems Modeling API and Services Specification
SYSMOAS-17 DataVersion::payload multiplicity
2023-10 - SysML v2 Release
Pilot Implementation
This is an incremental installation release of the pilot implementation of the SysML v2 language, API and services. The language pilot implementation includes bug fixes in this release. Release notes are available at
The API and Services implementation is still unchanged from 2023-02.
To install, download and decompress one of the files below and follow the instructions in the README file.
NOTE. Even though the files below are labeled "Source code", they simply contain the entire compressed contents of this repository. They do not actually include the pilot implementation source code, which is maintained in separate development repositories.
Issue Resolutions
This release includes updates to the Beta 1 specification documents corresponding to issue resolutions approved to date by the KerML, SysML v2 and Systems Modeling API and Services Finalization Task Forces (FTFs). Note, however, that these resolutions must be considered preliminary until the FTFs complete and their reports are approved by the OMG.
Resolutions to the following issues are included in this release, in addition to those included previously in release 2023-08. The subclauses of each document affected by a resolution are tagged in the document with the corresponding issue key and title.
KerML Specification
KERML-12 OCL errors in validateFeatureChainingFeatureNotOne and validateFeatureChainingFeaturesNotSelf
KERML-13 validateRedefinitionFeaturingTypes documentation and constraint are wrong
KERML-17 The OCL for checkFeatureEndRedefinition is wrong
KERML-18 Semantic constraints for subtypes of LiteralExpression are missing
KERML-19 The checkFeatureEndSpecialization constraint should apply to Connectors as well as Associations
KERML-20 Validation constraints are missing in the KerML abstract syntax
KERML-83 OCL errors in specialization constraints
KERML-89 The checkFeatureValuationSpecialization constraint is incorrect
KERML-94 The description of deriveFeatureReferenceExpressionReferent is wrong
KERML-95 validateTypeAtMostOneConjugator OCL is wrong
KERML-96 validateSpecializationSpecificNotConjugated documentation is wrong
KERML-99 deriveMembershipMemberElementId text elementId typo
KERML-100 Namespace Description Textual Errors
KERML-101 NamespaceImport Description Incorrect
KERML-102 OwningMembership Description ownedMemberElement typo
KERML-103 deriveElementIsLibraryElement Typo
KERML-107 validateSpecificationSpecificNotConjugated Typo and over Constraint
KERML-112 deriveTypeOwned TypeRelationship constraints have incomplete OCL
KERML-113 deriveFeatureOwnedSubsetting text references wrong attribute
KERML-115 FeatureMembership Description Typo
KERML-117 deriveTypeFeatureMembership incorrect unioning
KERML-118 deriveFeatureFeaturingType conflicts with owningType
KERML-122 validateClassSpecialization is too strict
KERML-151 deriveFeatureType is not correct
SysML Specification, Part 1: Language
SYSML2-28 Validation constraints are missing in the SysML abstract syntax
SYSML2-39 Graphical BNF production sq-part refers to wrong port
SYSML2-42 Textual production for sq-proxy-label incorrect
SYSML2-43 Graphical BNF sq-message reference incorrect
SYSML2-44 Graphical BNF sq-message-label usage incorrect
SYSML2-45 Graphical BNF interconnection view production incorrect
SYSML2-46 Graphical BNF flow-label and interface-label productions missing
SYSML2-47 Graphical BNF productions missing for connections
SYSML2-62 Incorrect production for attributes-compartment-element
SYSML2-63 Various incorrect Graphical BNF productions
SYSML2-66 Graphical BNF for n-ary connections missing
SYSML2-84 Connection declaration does not allow a feature value
SYSML2-99 Incorrect notation in action examples
SYSML2-101 Time triggers are relative to "localClock", not "defaultClock"
SYSML2-155 Limitation on specifying view renderings
SYSML2-190 The description and derivation of ForLoopActionUsage::seqArgument is wrong
SYSML2-191 deriveForLoopActionUsageBodyAction is misnamed
SYSML2-210 OCL errors in specialization constraints
SYSML2-218 Errors in TransitionUsage semantic constraints
SYSML2-223 Table 38 "Standard View Definitions" redundant
SYSML2-224 Number missing from table listing Standard View Definitions
SYSML2-252 Graphical BNF opaque "text block" productions
SYSML2-253 Additional cases when usages are required to be referential
SYSML2-254 Redundant numbered list in language description of usage
SYSML2-255 Error in textual BNF for MessageDeclaration
SYSML2-261 Error in textual BNF for TargetSuccession
SYSML2-287 sq-port-label and sq-ev-occurrence-label productions use Usage
SYSML2-291 Case View is not a standard view
SYSML2-296 validateFramedConcernUsageConstraintKind constraint is misnamed
SYSML2-298 validateDefinitionVariationMembership and validateUsageVariationMembership are too strict
SYSML2-299 validateDefinitionVariationSpecialization and validateUsageVariationSpecialization OCL is wrong
SYSML2-300 validateDefinitionNonVariationMembership and validateUsageNonVariationMembership are redundant with validateVariantMembershipOwningNamespace
SYSML2-301 validateUsageOwningType constraint is too restrictive
SYSML2-302 validateOccurrenceUsageIndividualDefinition OCL is wrong
SYSML2-306 validateStateDefinitionIsParallelGeneralization and validateStateUsageIsParallelGeneralization constraints are too restrictive
SYSML2-312 Typo: Table 19 - requirres
SYSML2-319 Wrong line style on action flow succession
SYSML2-321 Nesting port symbols should use rounded rectangles
SYSML2-322 Nesting parameter symbols should use rounded rectangles
SYSML2-325 Wrong compartment name: documentation
SYSML2-328 Incorrect private keyword notation
SYSML2-330 Incorrect entry name representative notation
SYSML2-332 Incorrect example "Variant Membership"
SYSML2-334 Incorrect example "Relationships Compartment"
SYSML2-335 Incorrect keyword in example "Attributes Compartment"
SYSML2-336 Incorrect notation in example "Individual Occurrence"
SYSML2-338 Incomplete example "Occurrences Compartment"
SYSML2-339 Unnecessarily complicated examples "Timeslices Compartment" and "Snapshots Compartment"
SYSML2-340 Examples "Timeslices Compartment" and "Snapshots Compartment" incorrectly declare state feature
[SYSML2-341](https://issues...
2023-08 - SysML v2 Release
Pilot Implementation
This is an incremental installation release of the pilot implementation of the SysML v2 language, API and services. The language pilot implementation includes bug fixes in this release. Release notes are available at
The API and Services implementation is still unchanged from 2023-02.
To install, download and decompress one of the files below and follow the instructions in the README file.
NOTE. Even though the files below are labeled "Source code", they simply contain the entire compressed contents of this repository. They do not actually include the pilot implementation source code, which is maintained in separate development repositories.
Issue Resolutions
This is the first release that includes updates to the Beta 1 specification documents corresponding to issue resolutions approved by the KerML, SysML v2 and Systems Modeling API and Services Finalization Task Forces (FTFs). Note, however, that these resolutions must be considered preliminary until the FTFs complete and their reports are approved by the OMG.
Resolutions to the following issues are included in this release. Document subclauses affected by a resolution are tagged with the corresponding issue key and title.
KerML Specification
KERML-14 validateItemFlowItemFeature documentation is wrong
KERML-15 Names validatePackageFilterIsBoolean and validatePackageFilterIsModelEvaluable are wrong
KERML-16 Rename validateDatatypeSpecialization to validateDataTypeSpecialization
KERML-30 List of symbols incomplete
KERML-31 Typo in Grammar
KERML-59 KerML 7.4.7.2 Behavior Declaration: last example
KERML-60 7.4.1 Kernel Overview: Occurence instead of Object superclass
KERML-64 Typo in 7.4.7.2
KERML-65 Typo in description of Connector::targetFeature
KERML-78 Some Feature constraints have no description
KERML-80 Incorrect OCL for validateFeatureChainingFeatureNotOne and validateFeatureChainingFeaturesNotSelf
SysML Specification, Part 1: Language
SYSML2-54 Error in InterfaceUsage semantics subclause
SYSML2-78 The .project.json file for the Cause and Effect Domain Library is misnamed
SYSML2-81 Association end name " /usageWithDirectedUsage" has a typo
SYSML2-92 Packages can also have compartments
SYSML2-103 Editoral corrections in 7.16.11
SYSML2-153 Error in assert constraint example
SYSML2-156 Errors in textual BNF for RequirementDefinition and ConcernDefinition
SYSML2-157 Incorrect font in descriptions of AttributeUsage and TransitionUsage
SySML Specification, Part 2: SysML v1 to v2 Transformation
SYSML2-1 "Elements not mapped" table sections are empty
SYSML2-2 ItemFlowEnds of ObjectFlow transformation target are not defined correctly
SYSML2-4 Transformation of UML4SysML::AddVariableValueAction is not correct
SYSML2-5 UntypedPin_Mapping::filter: property src should be from
SYSML2-7 Pin_Mapping::filter: property src should be from
SYSML2-14 UML4SysML::ClearVariableAction transformation does not include a ReturnParameter
SYSML2-16 Subsections for mapping classes in section 7.7.2.3.9 should be ordered alphabetically
SYSML2-19 REAOutputPin_Mapping should specialize OutputPin_Mapping
SYSML2-23 Transformation of UML4SysML::AddStructuralFeatureValueAction is not correct
SYSML2-88 Mapping of allocation between usage elements is not specified yet
SYSML2-171 Optimize Pin mapping class generalization hierarchy
SYSML2-173 Mapping of ValueSpecificationActions does not work for untyped pins
SYSML2-174 EmptyReturnParameterFeatureMembership_Mapping does not exist
SYSML2-178 ClassifierBehaviorFeatureMembership_Mapping does not exist
SYSML2-189 ControlFlowSuccessionAsUsage_Mapping uses non existing mapping class ActivityEdgeInitialNodeSourceEndFeatureMembership_Mapping
SYSML2-193 ControlFlowSuccessionAsUsage_Mapping uses non existing mapping class
SYSML2-195 GenericToEndFeatureMembership_Mapping::to property redefines itself
SYSML2-197 ControlFlow target SuccessionAsUsage should have end feature with reference subsetting
SYSML2-200 Description of Subsetting mapping classes is not correct
SYSML2-202 Filter for mapping class Behavior_Mapping is useless
SYSML2-204 Mapping of SysMLv1::ItemFlow does not consider the itemProperty
SYSML2-208 A ConnectionUsage should be owned by a FeatureMembership relationship
SYSML2-211 Introduce GenericToTransitionUsage_Mapping class
SYSML2-213 Typo in section 7.6.3 and section 7.6.4: mappingsto
SYSML2-215 ControlFlow transformation target ends are not defined correctly
Systems Modeling API and Services Specification
SYSMOAS-1 missing and superfluous properties
2023-07.1 - SysML v2 Release
This is a maintenance release of the pilot implementation of the SysML v2 language, API and services. It corrects the Eclipse installation site archive install/eclipse/org.omg.sysml.site.zip in the SysML v2 Release repository. Installing from the version of this archive in the 2023-07 release resulted in some models being given spurious warning messages in the Eclipse editors for KerML and SysML. Jupyter installations were not affected. There are no changes to the implementation repositories.
To install, download and decompress one of the files below and follow the instructions in the README file.
NOTE. Even though the files below are labeled "Source code", they simply contain the entire compressed contents of this repository. They do not actually include the pilot implementation source code, which is maintained in separate development repositories.
2023-07 - SysML v2 Release
This is an incremental installation release of the pilot implementation of the SysML v2 language, API and services. It is the first release since 2023-02. The 2023-07 release is consistent with the Beta 1 versions of the KerML, SysML and API specifications, including complete versions of all specification documents.
Only the language Pilot Implementation has been updated for this release. Release notes are available at
The API and Services implementation is unchanged from 2023-02.
To install, download and decompress one of the files below and follow the instructions in the README file.
NOTE. Even though the files below are labeled "Source code", they simply contain the entire compressed contents of this repository. They do not actually include the pilot implementation source code, which is maintained in separate development repositories.