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Relationships

SysML API

SysML connection def, interface def, flow def and allocation def declarations in src/.

memo::architecture::decisions

Name SysML kind Description Source
Decides connection def Typed relationship from DesignDecision to MemoPart. architecture/decisions/memo_decisions.sysml
DecisionRecordedInADR connection def Typed relationship from DesignDecision to ADRArtifact. architecture/decisions/memo_decisions.sysml

memo::architecture::functional::functions

Name SysML kind Description Source
FunctionalExchange flow def Typed relationship for functional exchange. architecture/functional/functions/memo_functions.sysml
FunctionalTransfer flow def The concrete exchange. A concrete flow def must declare its two ends, so this is the member of the family a model types its flows by; the ends are left untyped, as an exchange runs from an out parameter of one function to an in parameter of another (or between ports). architecture/functional/functions/memo_functions.sysml

memo::architecture::implementation::software::structure

Name SysML kind Description Source
DependsOnSoup connection def Typed relationship from MemoPart to SoftwareElement. architecture/implementation/software/structure/memo_software_structure.sysml

memo::architecture::implementation::ui

Name SysML kind Description Source
CapturesScreen connection def Which modelled screen an image is a rendering of. architecture/implementation/ui/memo_ui.sysml
ControlImplementedBy connection def A risk control implemented by a UI element or by task design (confirmation dialog, lockout, guarded control). architecture/implementation/ui/memo_ui.sysml
ElementTriggersAction connection def Typed relationship from MemoPart to UIAction. architecture/implementation/ui/memo_ui.sysml
ErrorAtElement connection def Typed relationship from UseError to MemoPart. architecture/implementation/ui/memo_ui.sysml
FlowServesUseCase connection def Typed relationship from InteractionFlow to UseCase. architecture/implementation/ui/memo_ui.sysml
NavigatesTo connection def Typed relationship from UIElement to UIElement. architecture/implementation/ui/memo_ui.sysml

memo::architecture::logical::interfaces

Name SysML kind Description Source
ComponentExchange interface def Typed relationship for component exchange. architecture/logical/interfaces/memo_interfaces.sysml
DataInterface interface def Typed relationship for data interface. architecture/logical/interfaces/memo_interfaces.sysml
Interface interface def Typed relationship for interface. architecture/logical/interfaces/memo_interfaces.sysml
SoftwareInterface interface def Software interaction contracts. Concrete technologies add their protocol roles and message flows; ports remain the endpoints that components actually own. architecture/logical/interfaces/memo_interfaces.sysml

memo::architecture::logical::structure

Name SysML kind Description Source
IndependentOf connection def Claimed independence between channels (common-cause defense). architecture/logical/structure/memo_logical_structure.sysml
LogicalConnector connection def A typed logical connection between two components' ports. architecture/logical/structure/memo_logical_structure.sysml
LogicalExchange flow def Typed relationship for logical exchange. architecture/logical/structure/memo_logical_structure.sysml
LogicalInterface interface def Typed relationship from LogicalPort to any element. architecture/logical/structure/memo_logical_structure.sysml
LogicalTransfer flow def The concrete exchange a model types its logical flows by; the ends stay untyped for the reason above. architecture/logical/structure/memo_logical_structure.sysml

memo::architecture::operational::activities

Name SysML kind Description Source
AssessesDifficulty connection def Typed relationship from TaskDifficultyAssessment to OperativeAction. architecture/operational/activities/memo_activities.sysml

memo::architecture::operational::context::stakeholders

Name SysML kind Description Source
Governs connection def Typed relationship from any element to MemoPart. architecture/operational/context/stakeholders/memo_stakeholders.sysml

memo::architecture::operational::context::use_context

Name SysML kind Description Source
AppliesInContext connection def Typed relationship from UseContext to MemoPart. architecture/operational/context/use_context/memo_use_context.sysml
InteractsInContext connection def The single relation a system context view draws. A context diagram labels its edges with open-ended verbs — "directs procedure", "electrical power", "fluid supply", "environmental conditions".… architecture/operational/context/use_context/memo_use_context.sysml
SituatedIn connection def Typed relationship from UseContext to UseEnvironment. architecture/operational/context/use_context/memo_use_context.sysml

memo::architecture::operational::structure

Name SysML kind Description Source
EnablesUseCase connection def An operational capability enables a use case (the ability the actor draws on to accomplish the goal). Capability is tied to the use case, not to individual activities. architecture/operational/structure/memo_operational.sysml
RequiresCapability connection def The intended use requires these operational capabilities (ARCADIA: Mission Requires Capability). architecture/operational/structure/memo_operational.sysml

memo::architecture::operational::use_cases

Name SysML kind Description Source
Motivates connection def Typed relationship from Need to UseCase. architecture/operational/use_cases/memo_use_cases.sysml

memo::architecture::operational::workflows

Name SysML kind Description Source
RealizesUseCase connection def The use case a workflow realizes. Many workflows may trace to one use case; the use case does not own its workflows (the trace points upward, workflow → use case). architecture/operational/workflows/memo_workflows.sysml
Transforms connection def Typed relationship from MemoAction to MemoAction. architecture/operational/workflows/memo_workflows.sysml

memo::architecture::realization::deployment

Name SysML kind Description Source
BuildsInto allocation def Typed relationship from SoftwareModule to SoftwareDeploymentUnit. architecture/realization/deployment/memo_deployment.sysml
ConnectionBinding allocation def AADL actual_connection_binding. Which physical thing carries an interface: a network medium under a component exchange, a cable or harness under a hardware Interface, a connector, a tube.… architecture/realization/deployment/memo_deployment.sysml
DeploysTo allocation def Typed relationship from SoftwareDeploymentUnit to ProcessingNode. architecture/realization/deployment/memo_deployment.sysml
FlowComprisesSpec connection def The end-to-end flow is realized by an ordered flow specification, one segment per traversed component boundary (AADL flow-spec → end-to-end). architecture/realization/deployment/memo_deployment.sysml
FlowTraversesBinding allocation def Typed relationship from EndToEndFlow to SoftwareDeploymentUnit. architecture/realization/deployment/memo_deployment.sysml
MemoryBinding allocation def AADL actual_memory_binding. Which memory a software component's code and data occupy — what makes a memory budget a claim about a device rather than a string. architecture/realization/deployment/memo_deployment.sysml
ProvidesEnvironment connection def Typed relationship from ProcessingNode to RuntimeEnvironment. architecture/realization/deployment/memo_deployment.sysml
RealizedBy allocation def Typed relationship from LogicalComponent to MemoPart. architecture/realization/deployment/memo_deployment.sysml

memo::architecture::realization::physical

Name SysML kind Description Source
PhysicalFlow flow def What crosses a physical interface, as a quantity: a voltage, a current, a pressure, a force, a flow of fluid. architecture/realization/physical/memo_physical_architecture.sysml
PhysicalInterface interface def Typed relationship from PhysicalPort to PhysicalPort. architecture/realization/physical/memo_physical_architecture.sysml
PhysicalTransfer flow def The concrete flow a model types its physical flows by; a concrete flow def declares its two ends. architecture/realization/physical/memo_physical_architecture.sysml

memo::architecture::variability

Name SysML kind Description Source
ExcludesFeature connection def The two features cannot be selected together. Symmetric: either end may be written first. architecture/variability/memo_variability.sysml
RequiresFeature connection def Selecting the source feature needs the target feature selected too. architecture/variability/memo_variability.sysml

memo::artifacts::configuration_management

Name SysML kind Description Source
Changes connection def Typed relationship from ChangeRequest to MemoPart. artifacts/configuration_management/memo_configuration_management.sysml

memo::artifacts::standards

Name SysML kind Description Source
ConformsTo connection def Any model element claims conformance to a standard clause. This is the edge the standards traceability matrix and the clause coverage report are computed over. artifacts/standards/memo_artifacts_standards_traceability.sysml
TracesToDocument connection def Where the evidence for a clause claim is written down. The target is the existing controlled-artifact type — MEMO does not model a separate Document/DocumentSection family, because ControlledArtifact / ModelOwnedArtifact / MarkdownDocumentSource already carry version, owner an… artifacts/standards/memo_artifacts_standards_traceability.sysml

memo::assurance::cybersecurity

Name SysML kind Description Source
AffectsSBOMEntry connection def Typed relationship from Vulnerability to SBOMEntry. assurance/cybersecurity/memo_cybersecurity.sysml
AssessesCyberRisk connection def Typed relationship from CyberRiskAssessment to CyberRisk. assurance/cybersecurity/memo_cybersecurity.sysml
AttributedToThreatActor connection def Typed relationship from Threat to ThreatActor. assurance/cybersecurity/memo_cybersecurity.sysml
ConditionsCyberElement connection def Typed relationship from CybersecurityAssumption to any element. assurance/cybersecurity/memo_cybersecurity.sysml
DemonstratesAttackPath connection def Typed relationship from SecurityFinding to AttackPath. assurance/cybersecurity/memo_cybersecurity.sysml
Exploits connection def Typed relationship from Threat to Vulnerability. assurance/cybersecurity/memo_cybersecurity.sysml
ExposesAsset connection def Typed relationship from AttackSurface to CybersecurityAsset. assurance/cybersecurity/memo_cybersecurity.sysml
HasSecurityProperty connection def Typed relationship from CybersecurityAsset to SecurityProperty. assurance/cybersecurity/memo_cybersecurity.sysml
IdentifiesVulnerability connection def Typed relationship from SecurityFinding to Vulnerability. assurance/cybersecurity/memo_cybersecurity.sysml
ImpactsSafety connection def Typed relationship from MemoPart to RiskItem. assurance/cybersecurity/memo_cybersecurity.sysml
IncludesAttackTechnique connection def Typed relationship from AttackPath to AttackTechnique. assurance/cybersecurity/memo_cybersecurity.sysml
MonitorsSBOMEntry connection def Typed relationship from PostmarketProcess to SBOMEntry. assurance/cybersecurity/memo_cybersecurity.sysml
RealizedByScenario connection def Typed relationship from RequirementDriver to OperativeScenario. assurance/cybersecurity/memo_cybersecurity.sysml
RealizesCyberHazard connection def Typed relationship from Threat to CyberHazard. assurance/cybersecurity/memo_cybersecurity.sysml
SupportsMitigationEffectiveness connection def Typed relationship from MemoEvidence to CyberMitigation. assurance/cybersecurity/memo_cybersecurity.sysml
ThreatenedBy connection def Typed relationship from CybersecurityAsset to Threat. assurance/cybersecurity/memo_cybersecurity.sysml
UsesAttackTechnique connection def Typed relationship from Threat to AttackTechnique. assurance/cybersecurity/memo_cybersecurity.sysml

memo::assurance::human_factors

Name SysML kind Description Source
CommitsUseError connection def Typed relationship from OperativeAction to UseError. assurance/human_factors/memo_human_factors.sysml
EvaluatesTask connection def Typed relationship from MemoEvidence to OperativeAction. assurance/human_factors/memo_human_factors.sysml
TestedByUsability connection def Typed relationship from any element to MemoVerificationCase. assurance/human_factors/memo_human_factors.sysml

memo::assurance::requirements::needs

Name SysML kind Description Source
HeldBy connection def Whose need this is. The holder is a modelled participant — a User, with the profile IEC 62366-1 asks for, or another operational participant — so "which users does this need serve" is a question the model answers rather than a sentence a reader interprets. assurance/requirements/needs/memo_needs.sysml

memo::assurance::safety_risk

Name SysML kind Description Source
AssessedAgainst connection def Typed relationship from Risk to RiskMatrix. assurance/safety_risk/memo_risk.sysml
EstimatedFor connection def Typed relationship from Risk to RiskItem. assurance/safety_risk/memo_risk.sysml
EvaluatedIn connection def Typed relationship from ResidualRisk to OverallResidualRiskEvaluation. assurance/safety_risk/memo_risk.sysml
HazardRelatedScenario connection def Typed relationship from RiskItem to OperativeScenario. assurance/safety_risk/memo_risk.sysml
LeadsToHarm connection def The final ISO 14971 chain edge. P2 is the conditional probability that the hazardous situation results in the harm. assurance/safety_risk/memo_risk.sysml
Mitigates connection def Typed relationship from any element to RiskItem. assurance/safety_risk/memo_risk.sysml
ReducedBy connection def Typed relationship from ResidualRisk to RiskControlMeasure. assurance/safety_risk/memo_risk.sysml
TracesRisk connection def Typed relationship from RiskItem to RiskItem. assurance/safety_risk/memo_risk.sysml
WeighedAgainst connection def Typed relationship from Benefit to Risk. assurance/safety_risk/memo_risk.sysml

memo::assurance::safety_risk::analysis

Name SysML kind Description Source
Causes connection def Typed relationship from any element to any element. assurance/safety_risk/analysis/memo_fmea.sysml
ContainsEvent connection def Typed relationship from MinimalCutSet to FaultTreeNode. assurance/safety_risk/analysis/memo_fmea.sysml
DetectedBy connection def Typed relationship from FailureMode to DetectionMethod. assurance/safety_risk/analysis/memo_fmea.sysml
HasFailureMode connection def Typed relationship from MemoPart to FailureMode. assurance/safety_risk/analysis/memo_fmea.sysml
IdentifiesHazard connection def Typed relationship from HAZOPDeviation to Hazard. assurance/safety_risk/analysis/memo_fmea.sysml
InputToGate connection def Typed relationship from FaultTreeNode to FaultTreeNode. assurance/safety_risk/analysis/memo_fmea.sysml
ProducesEvent connection def Typed relationship from FaultTreeNode to FaultTreeNode. assurance/safety_risk/analysis/memo_fmea.sysml

memo::assurance::safety_risk::postmarket_surveillance

Name SysML kind Description Source
FeedsBackTo connection def Typed relationship from PostMarketSurveillance to MemoPart. assurance/safety_risk/postmarket_surveillance/memo_postmarket_surveillance.sysml

memo::assurance::verification_validation

Name SysML kind Description Source
PerformsStep connection def Typed relationship from MemoVerificationCase to TestStep. assurance/verification_validation/memo_assurance.sysml

memo::core::annotations

Name SysML kind Description Source
CommentsOn connection def Replies form a thread through the ordinary Composes relation (parent comment → reply), so CR-ONT-001's acyclicity invariant already covers comment threads and no thread-specific relation is needed.… core/annotations/memo_annotations.sysml
NotesOn connection def Typed relationship from ModelNote to any element. core/annotations/memo_annotations.sysml
RationaleFor connection def Typed relationship from ModelRationale to any element. core/annotations/memo_annotations.sysml

memo::core::common

Name SysML kind Description Source
MemoInterface interface def Interaction-contract foundation for interface definitions between ports. core/common/memo_common.sysml

memo::core::relationships

Name SysML kind Description Source
BindsToInterface connection def Typed relationship from any element to any element. core/relationships/memo_relationships.sysml
CrossesTrustBoundary connection def Typed relationship from any element to any element. core/relationships/memo_relationships.sysml
DerivesCyberRequirement connection def Typed relationship from RequirementDriver to MemoRequirementElement. core/relationships/memo_relationships.sysml
DerivesFrom connection def Typed relationship from any element to MemoRequirementElement. core/relationships/memo_relationships.sysml
HostedBy allocation def A processing node hosted by an assembly is allocated to it. The end NAMES were already right; two of the three usages wrote them in reverse order, and the builder binds by position, so those two edges pointed the wrong way. See the reversed-end-name lint in memo-tools. core/relationships/memo_relationships.sysml
MemoRelationship connection def Typed relationship for memo relationship. core/relationships/memo_relationships.sysml
ProducesEvidence connection def Typed relationship from MemoVerificationCase to MemoEvidence. core/relationships/memo_relationships.sysml
ScopedTo connection def Typed relationship from any element to MemoPart. core/relationships/memo_relationships.sysml
Validates connection def Typed relationship from any element to MemoVerificationCase. core/relationships/memo_relationships.sysml