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cps-metamodel.graphql
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cps-metamodel.graphql
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schema {
query: Query
mutation: Mutation
}
type Query {
"""
List of Projects
"""
cpsProjects: [Project]
"""
System Model for: 'Mission Aware' Facility
"""
cpsSystemModel(projectId: ID!): CPSsystemModel
}
type CPSsystemModel {
"""
The project identity.
"""
project: Project
"""
An attack vector is a path or means by which a hacker can gain access to a
computer or network server in order to deliver a payload or malicious outcome.
Attack vectors enable hackers to exploit system vulnerabilities, including the
human element.
"""
attackVector: [AttackVector]
"""
A component is an abstract term that represents the physical or logical entity
that performs a specific function or functions.
"""
component: [Component]
"""
The set of process model variables and values.
"""
context: [Context]
"""
A controller may provide control actions to control some process and to enforce
constraints on the behavior of the controlled process.
"""
controlAction: [ControlAction]
"""
A document identifies either the source/authorization for information entered
into the system description database, a specification/document generated from
the contents of the database, or an applicable or reference document for a
specification/document generated from the contents of the database.
"""
document: [Document]
"""
A domain set defines the number of iterations or replications in a control
structure.
"""
domainSet: [DomainSet]
"""
An exit identifies a possible path to follow when a processing unit completes.
"""
exit: [Exit]
"""
Process models may be updated in part by feedback used to observe the controlled
process.
"""
feedback: [Feedback]
"""
A Function is a transformation that accepts one or more inputs (items) and
transforms them into outputs (items).
"""
function: [Function]
"""
A hazard is a system state or set of conditions that, together with a particular
set of worst-case environmental conditions, will lead to a loss
"""
hazard: [Hazard]
"""
An interface describes the logical connections between parts of an architecture.
"""
interface: [Interface]
"""
Items represent flows within and between functions. An item is an input to or an
output from a function.
"""
item: [Item]
"""
A link is the physical implementation of an interface.
"""
link: [Link]
"""
A loss involves something of value to stakeholders. Losses may include a loss of
human life or human injury, property damage, environmental pollution, loss of
mission, loss of reputation, loss or leak of sensitive information, or any other
loss that is unacceptable to the stakeholders.
"""
loss: [Loss]
"""
A loss scenario describes the causal factors that can lead to the unsafe control
and to hazards. Two types of loss scenarios must be considered: a) Why would
Unsafe Control Actions occur? b) Why would control actions be improperly
executed or not executed, leading to hazards?
"""
lossScenario: [LossScenario]
"""
A Requirement is either an originating requirement extracted from source
documentation for a system, a refinement of a higher-level requirement, a
derived characteristic of the system or one of its subcomponents, or a design
decision.
"""
requirement: [Requirement]
"""
A resilient mode of the system that remediates one or more loss scenarios.
"""
resilientMode: [ResilientMode]
"""
A Resource is something (e.g., power, MIPS, interceptors, etc.) that the system
uses, captures, or generates while it is operating.
"""
resource: [Resource]
"""
An Unsafe Control Action (UCA) is a control action that, in a particular context
and worst-case environment, will lead to a hazard.
"""
unsafeAction: [UnsafeAction]
"""
recursive call structure (select, parallel, loop, etc.) for each function
"""
callStructure: [CallStructure]
}
type Mutation {
"""
Mutate Project
"""
cpsProject(project: Project_Input): Project
"""
Mutate CPS System Model
"""
cpsSystemModel(projectId: ID!, cpsSystemModel: CPSsystemModel_Input): CPSsystemModel
}
input CPSsystemModel_Input {
attackVector: [AttackVector_Input]
component: [Component_Input]
context: [Context_Input]
controlAction: [ControlAction_Input]
document: [Document_Input]
domainSet: [DomainSet_Input]
exit: [Exit_Input]
feedback: [Feedback_Input]
function: [Function_Input]
hazard: [Hazard_Input]
interface: [Interface_Input]
item: [Item_Input]
link: [Link_Input]
loss: [Loss_Input]
lossScenario: [LossScenario_Input]
requirement: [Requirement_Input]
resilientMode: [ResilientMode_Input]
resource: [Resource_Input]
unsafeAction: [UnsafeAction_Input]
}
#########################################
# Common Definitions
#########################################
type Project {
id: ID!
name: String!
description: String
version: String
}
# for mutations
input Project_Input {
operation: MutationOperation!
id: ID # autogenerated on Create, required for Update / Delete
name: String!
description: String
version: String
}
type Parameter {
name: String!
description: String
objective: String
threshold: String
design: String
observed: String
units: String
}
input Parameter_Input {
operation: MutationOperation!
name: String!
description: String
objective: String
threshold: String
design: String
observed: String
units: String
}
"""
Mutations for List items of an Entity (Parameters, Relations) include an 'instance' operation.
NOTE: when 'creating' an Entity, all associated List item instances must be set to 'Create'
when 'updating' an Entity, only include associated List items to be 'Created', 'Updated', or 'Deleted'
when 'deleting' an Entity, all associated List items are automatically deleted
"""
enum MutationOperation
{
Create
Update
Delete
}
#########################################
# AttackVector definition
#########################################
type AttackVector {
identity: AttackVectorID!
attributes: AttackVectorATTR
parameters: [Parameter]
relations: AttackVectorREL
}
# for mutations
input AttackVector_Input {
operation: MutationOperation!
identity: AttackVectorID_Input!
attributes: AttackVectorATTR_Input
parameters: [Parameter_Input]
relations: AttackVectorREL_Input
}
type AttackVectorID {
id: ID!
name: String!
number: String!
}
# for mutations
input AttackVectorID_Input {
id: ID # autogenerated on Create, required for Update / Delete
name: String!
number: String!
}
type AttackVectorATTR {
"""
The likelihood of the attack.
"""
likelihood: AttackVectorLikelihood
"""
Is the attack vector to be considered for the system?
"""
outOfScope: Boolean
"""
A justification for not including the attack vector within the system scope.
"""
outOfScopeJustification: String
"""
Typical severity of this type of attack.
"""
severity: AttackVectorSeverity
"""
The domain of attack. The attack domain aligns to the Component Type / Link:
Software -> SW Subsystem Hardware -> HW Subsystem Communication -> Link
Supply Chain -> HW & SW Subsystem Social Engineering -> Human Physical
Security -> Environment
"""
domainOfAttack: AttackVectorDomainOfAttack
"""
Description is the written statement of this entity.
"""
description: String
}
enum AttackVectorLikelihood {
nil
High
Medium
Low
}
enum AttackVectorSeverity {
nil
Very_High
High
Medium
Low
Very_Low
}
enum AttackVectorDomainOfAttack {
nil
Software
Hardware
Communications
Supply_Chain
Social_Engineering
Physical_Security
}
# for mutations
input AttackVectorATTR_Input {
likelihood: AttackVectorLikelihood
outOfScope: Boolean
outOfScopeJustification: String
severity: AttackVectorSeverity
domainOfAttack: AttackVectorDomainOfAttack
description: String
}
type AttackVectorREL {
"""
Documented by identifies the source document which specifies and/or enhances the
definition of this entity.
"""
documentedBy: [AttackVector_DocumentedByTarget]
"""
The attack vector which causes the loss scenario.
"""
precipitates: [AttackVector_PrecipitatesTarget]
"""
Identifies Entities that can be violated by an Attack.
"""
violates: [AttackVector_ViolatesTarget]
}
# for mutations
input AttackVectorREL_Input {
documentedBy: [AttackVector_DocumentedByTarget_Input]
precipitates: [AttackVector_PrecipitatesTarget_Input]
violates: [AttackVector_ViolatesTarget_Input]
}
type AttackVector_DocumentedByTarget {
documentTarget: DocumentID
}
type AttackVector_PrecipitatesTarget {
lossScenarioTarget: LossScenarioID
}
type AttackVector_ViolatesTarget {
componentTarget: ComponentID
linkTarget: LinkID
"""
A description of selected mitigation.
"""
justification: String
"""
Component / Link specific attack vector description.
"""
description: String
"""
The attack vector system mitigation for the associated Component / Link.
"""
mitigationType: AttackVector_ViolatesMitigationType
}
enum AttackVector_ViolatesMitigationType {
nil
Defensive
DiverseRedundancy
Harden
N_A
}
# for mutations
input AttackVector_DocumentedByTarget_Input {
operation: MutationOperation!
documentTarget: DocumentID_Input
}
input AttackVector_PrecipitatesTarget_Input {
operation: MutationOperation!
lossScenarioTarget: LossScenarioID_Input
}
input AttackVector_ViolatesTarget_Input {
operation: MutationOperation!
componentTarget: ComponentID_Input
linkTarget: LinkID_Input
justification: String
description: String
mitigationType: AttackVector_ViolatesMitigationType
}
#########################################
# Component definition
#########################################
type Component {
identity: ComponentID!
attributes: ComponentATTR
parameters: [Parameter]
relations: ComponentREL
}
# for mutations
input Component_Input {
operation: MutationOperation!
identity: ComponentID_Input!
attributes: ComponentATTR_Input
parameters: [Parameter_Input]
relations: ComponentREL_Input
}
type ComponentID {
id: ID!
name: String!
number: String!
}
# for mutations
input ComponentID_Input {
id: ID # autogenerated on Create, required for Update / Delete
name: String!
number: String!
}
type ComponentATTR {
"""
Type identifies the component's role in the component hierarchy.
"""
type: ComponentType
"""
Contract Line Item Number is a reference to the contract's identification for
the specific items and services requiring separate pricing.
"""
clin: String
"""
Is the Component out of scope for the system Attack Analysis?
"""
outOfScopeAttackAnalysis: Boolean
"""
A list of attributes describing important characteristics of the component type.
For example, OS type, Firmware Version, Model Number, etc. A project specific
naming convention is suggested (for example: <attribute-name>:<attribute-value>,
[os-type:linux])
"""
inventory: [String]
"""
A justification for excluding the Component from the Attack Analysis.
"""
outofScopeJustification: String
"""
Mission is the text description of the business purpose of a system.
"""
mission: String
"""
Operations describe synchronous interactions where the requestor waits for the
request to be handled. This attribute identifies a subset of the allocated
behavior that is critical to highlight on SysML representations.
"""
operations: [String]
"""
Doc. PUID is the project unique identifier that is often used in system
development specifications and documents to identify the same entity in multiple
documents. This is not to be confused with the database entity unique
identifier.
"""
puid: String
"""
Purpose is a brief statement of the reason for the existence of the entity.
"""
purpose: String
"""
Cost is the expense associated with an entity.
"""
cost: Float
"""
Receptions describe asynchronous interactions where the requestor can continue
without waiting for a reply. This attribute identifies a subset of the allocated
behavior that is critical to highlight on SysML representations.
"""
receptions: [String]
"""
Abbreviation identifies a unique shortened name for the entity.
"""
abbreviation: String
"""
Title is the label to be used in formal documentation instead of the entity
name.
"""
title: String
"""
Description is the written statement of this entity.
"""
description: String
}
enum ComponentType {
nil
Assembly
Context
CSC
CSCI
CSU
Element
Environment
External_System
Facility
Family_of_Systems
Human
HW_Element
HWCI
Network
Part
Segment
Sentinel
Service
Software_Item
Subassembly
Subsystem
SW_Element
SWCI
System
System_Architecture
System_of_Systems
Test_Equipment
Test_Software
Threat_Simulator
}
# for mutations
input ComponentATTR_Input {
type: ComponentType
clin: String
outOfScopeAttackAnalysis: Boolean
inventory: [String]
outofScopeJustification: String
mission: String
operations: [String]
puid: String
purpose: String
cost: Float
receptions: [String]
abbreviation: String
title: String
description: String
}
type ComponentREL {
"""
Built from identifies the entities (children) that make up this entity (the
parent).
"""
builtFrom: [Component_BuiltFromTarget]
"""
Built in identifies the parent entity for which this entity is a part.
"""
builtIn: [Component_BuiltInTarget]
"""
Connected to identifies the connection that serves to link this unit to another
entity.
"""
connectedTo: [Component_ConnectedToTarget]
"""
Documented by identifies the source document which specifies and/or enhances the
definition of this entity.
"""
documentedBy: [Component_DocumentedByTarget]
"""
The Function / Link / Item enables detection of Loss Scenario.
"""
enablesDetectionOf: [Component_EnablesDetectionOfTarget]
"""
Generalization of associates a specific object classification with a more
general object classification. For example, "Vehicle" is a generalization of
"Car," "Train," and "Plane."
"""
generalizationOf: [Component_GeneralizationOfTarget]
"""
Identifies Attack Patterns that may violate an Entity.
"""
isViolatedBy: [Component_IsViolatedByTarget]
"""
Joined to identifies the logical units through which this physical unit
interfaces with another.
"""
joinedTo: [Component_JoinedToTarget]
"""
Kind of indicates classification. This relationship is often referred to as the
"is a" relationship (i.e., a car "is a" vehicle).
"""
kindOf: [Component_KindOfTarget]
"""
Performs identifies the actions that this entity accomplishes.
"""
performs: [Component_PerformsTarget]
"""
A Sentinel protects against one or more Loss Scenarios.
"""
protectsAgainst: [Component_ProtectsAgainstTarget]
"""
Reported by identifies the documentation entity of which the entity is the
primary subject.
"""
reportedBy: [Component_ReportedByTarget]
"""
A Threat Simulator simulates one or more Loss Scenarios.
"""
simulates: [Component_SimulatesTarget]
"""
Specified by identifies constraint and/or performance requirements that this
entity must satisfy.
"""
specifiedBy: [Component_SpecifiedByTarget]
}
# for mutations
input ComponentREL_Input {
builtFrom: [Component_BuiltFromTarget_Input]
builtIn: [Component_BuiltInTarget_Input]
connectedTo: [Component_ConnectedToTarget_Input]
documentedBy: [Component_DocumentedByTarget_Input]
enablesDetectionOf: [Component_EnablesDetectionOfTarget_Input]
generalizationOf: [Component_GeneralizationOfTarget_Input]
isViolatedBy: [Component_IsViolatedByTarget_Input]
joinedTo: [Component_JoinedToTarget_Input]
kindOf: [Component_KindOfTarget_Input]
performs: [Component_PerformsTarget_Input]
protectsAgainst: [Component_ProtectsAgainstTarget_Input]
reportedBy: [Component_ReportedByTarget_Input]
simulates: [Component_SimulatesTarget_Input]
specifiedBy: [Component_SpecifiedByTarget_Input]
}
type Component_BuiltFromTarget {
componentTarget: ComponentID
"""
Whole Multiplicity indicates if the component is distinct and separable
(wholeMultiplicity = 0; also termed composition) or whether the component is
distinct and not separable (wholeMultiplicity = 1; also termed aggregation).
"""
wholeMultiplicity: Component_BuiltFromWholeMultiplicity
"""
PartRole is the name of the role that the part plays in the whole.
"""
partRole: String
"""
PartMultiplicity is the potential number of instances of the part built in the
whole. This can be specified as zero, a whole number, or a range from a lower
bound to an upper bound.
"""
partMultiplicity: String
}
enum Component_BuiltFromWholeMultiplicity {
E_0
E_1
}
type Component_BuiltInTarget {
componentTarget: ComponentID
"""
Whole Multiplicity indicates if the component is distinct and separable
(wholeMultiplicity = 0; also termed composition) or whether the component is
distinct and not separable (wholeMultiplicity = 1; also termed aggregation).
"""
wholeMultiplicity: Component_BuiltInWholeMultiplicity
"""
PartRole is the name of the role that the part plays in the whole.
"""
partRole: String
"""
PartMultiplicity is the potential number of instances of the part built in the
whole. This can be specified as zero, a whole number, or a range from a lower
bound to an upper bound.
"""
partMultiplicity: String
}
enum Component_BuiltInWholeMultiplicity {
E_0
E_1
}
type Component_ConnectedToTarget {
linkTarget: LinkID
"""
Port ID provides a unique identification for the port that is used between the
Link and the Component.
"""
portID: String
}
type Component_DocumentedByTarget {
documentTarget: DocumentID
}
type Component_EnablesDetectionOfTarget {
lossScenarioTarget: LossScenarioID
"""
constraint (=,<,>) for Item, Function, Link, Resource monitored by Sentinel
"""
constraint: [String]
}
type Component_GeneralizationOfTarget {
componentTarget: ComponentID
"""
Type classifies the nature of the generalization / specialization relationship.
Inheritance indicates that the specialization shares the properties of the
generalization. Instance indicates that the specialization also shares the
relationships of the generalization.
"""
type: Component_GeneralizationOfType
}
enum Component_GeneralizationOfType {
Inheritance
Instance
}
type Component_IsViolatedByTarget {
attackVectorTarget: AttackVectorID
"""
A description of selected mitigation.
"""
justification: String
"""
Component / Link specific attack vector description.
"""
description: String
"""
The attack vector system mitigation for the associated Component / Link.
"""
mitigationType: Component_IsViolatedByMitigationType
}
enum Component_IsViolatedByMitigationType {
nil
Defensive
DiverseRedundancy
Harden
N_A
}
type Component_JoinedToTarget {
interfaceTarget: InterfaceID
}
type Component_KindOfTarget {
componentTarget: ComponentID
"""
Type classifies the nature of the generalization / specialization relationship.
Inheritance indicates that the specialization shares the properties of the
generalization. Instance indicates that the specialization also shares the
relationships of the generalization.
"""
type: Component_KindOfType
}
enum Component_KindOfType {
Inheritance
Instance
}
type Component_PerformsTarget {
functionTarget: FunctionID
"""
Behavior Type classifies the mapping of the processing unit to the
implementation unit.
"""
behaviorType: Component_PerformsBehaviorType
}
enum Component_PerformsBehaviorType {
Atomic
Integrated_Root
Thread
}
type Component_ProtectsAgainstTarget {
lossScenarioTarget: LossScenarioID
}
type Component_ReportedByTarget {
documentTarget: DocumentID
}
type Component_SimulatesTarget {
lossScenarioTarget: LossScenarioID
}
type Component_SpecifiedByTarget {
requirementTarget: RequirementID
"""
The Governs relationship attribute identifies the Parameter attribute that is
associated in both the Requirement entity and Component entity joined by the
specified by / specifies relationship.
"""
governs: String
}
# for mutations
input Component_BuiltFromTarget_Input {
operation: MutationOperation!
componentTarget: ComponentID_Input
wholeMultiplicity: Component_BuiltFromWholeMultiplicity
partRole: String
partMultiplicity: String
}
input Component_BuiltInTarget_Input {
operation: MutationOperation!
componentTarget: ComponentID_Input
wholeMultiplicity: Component_BuiltInWholeMultiplicity
partRole: String
partMultiplicity: String
}
input Component_ConnectedToTarget_Input {
operation: MutationOperation!
linkTarget: LinkID_Input
portID: String
}
input Component_DocumentedByTarget_Input {
operation: MutationOperation!
documentTarget: DocumentID_Input
}
input Component_EnablesDetectionOfTarget_Input {
operation: MutationOperation!
lossScenarioTarget: LossScenarioID_Input
constraint: [String]
}
input Component_GeneralizationOfTarget_Input {
operation: MutationOperation!
componentTarget: ComponentID_Input
type: Component_GeneralizationOfType
}
input Component_IsViolatedByTarget_Input {
operation: MutationOperation!
attackVectorTarget: AttackVectorID_Input
justification: String
description: String
mitigationType: Component_IsViolatedByMitigationType
}
input Component_JoinedToTarget_Input {
operation: MutationOperation!
interfaceTarget: InterfaceID_Input
}
input Component_KindOfTarget_Input {
operation: MutationOperation!
componentTarget: ComponentID_Input
type: Component_KindOfType
}
input Component_PerformsTarget_Input {
operation: MutationOperation!
functionTarget: FunctionID_Input
behaviorType: Component_PerformsBehaviorType
}
input Component_ProtectsAgainstTarget_Input {
operation: MutationOperation!
lossScenarioTarget: LossScenarioID_Input
}
input Component_ReportedByTarget_Input {
operation: MutationOperation!
documentTarget: DocumentID_Input
}
input Component_SimulatesTarget_Input {
operation: MutationOperation!
lossScenarioTarget: LossScenarioID_Input
}
input Component_SpecifiedByTarget_Input {
operation: MutationOperation!
requirementTarget: RequirementID_Input
governs: String
}
#########################################
# Context definition
#########################################
type Context {
identity: ContextID!
attributes: ContextATTR
parameters: [Parameter]
relations: ContextREL
}
# for mutations
input Context_Input {
operation: MutationOperation!
identity: ContextID_Input!
attributes: ContextATTR_Input
parameters: [Parameter_Input]
relations: ContextREL_Input
}
type ContextID {
id: ID!
name: String!
number: String!
}
# for mutations
input ContextID_Input {
id: ID # autogenerated on Create, required for Update / Delete
name: String!
number: String!
}
type ContextATTR {
"""
Range identifies the range of values that the entity can assume.
"""
range: String
"""
Units identifies the units of measurement for the value of the entity.
"""
units: String
"""
Accuracy identifies how correct the value of the entity must be.
"""
accuracy: String
"""
Fields identifies the data fields contained within the item.
"""
fields: [String]
"""
Precision identifies the number of significant digits required for the value of
the entity.
"""
precision: String
"""
Doc. PUID is the project unique identifier that is often used in system
development specifications and documents to identify the same entity in multiple
documents. This is not to be confused with the database entity unique
identifier.
"""
puid: String
"""
Size indicates the estimated size (in sizeUnits) of this entity.
"""
size: String
"""
Size Units indicates the measurement units associated with this entity.
"""
sizeUnits: String
"""
Priority is used to identify the order of processing of an entity. High priority
entities (larger numbers) are processed before low priority entities (smaller
numbers).
"""
priority: String
"""
Type is the physical type of this entity.
"""
type: ContextType
"""
Title is the label to be used in formal documentation instead of the entity
name.
"""
title: String
"""
Description is the written statement of this entity.
"""
description: String
}
enum ContextType {
nil
Analog
Digital
Physical
Mixed
}
# for mutations
input ContextATTR_Input {
range: String
units: String
accuracy: String
fields: [String]
precision: String
puid: String