Requirement
IRI: https://w3id.org/altium/cdm/requirement/Requirement
Bounded context: requirements
A single, testable statement of intent or constraint that governs a solution or process outcome.
Platform API
GRID (1)
grid:workspace:{workspace-id}:requirements:requirement/{id}
Diagram
---
config:
layout: elk
theme: neutral
class:
hideEmptyMembersBox: true
---
classDiagram
direction LR
class req_Requirement["Requirement"]
style req_Requirement fill:#f6b26b
click req_Requirement href "../../classes/req_Requirement/"
class core_Artifact["Artifact"]
core_Artifact <|-- req_Requirement
click core_Artifact href "../../classes/core_Artifact/"
req_Requirement --> "*" req_RequirementRevision : revisions
click req_RequirementRevision href "../../classes/req_RequirementRevision/"
class req_RequirementRevision["Requirement Revision"]
style req_RequirementRevision fill:#f6b26b
req_Requirement : key
req_Requirement : title
req_Requirement : statement
req_Requirement : rationale
req_Requirement : category
req_Requirement : priority
req_Requirement : acceptanceCriteria
req_Requirement : owner
req_Requirement : sourceReference
req_Requirement --> "*" req_Requirement : children
click req_Requirement href "../../classes/req_Requirement/"
class req_Requirement["Requirement"]
style req_Requirement fill:#f6b26b
req_Requirement --> "0..1" req_Requirement : parent
click req_Requirement href "../../classes/req_Requirement/"
class req_Requirement["Requirement"]
style req_Requirement fill:#f6b26b
req_Requirement --> "*" req_Artifact : satisfied by artifacts
click req_Artifact href "../../classes/req_Artifact/"
class req_Artifact["Requirement Artifact"]
style req_Artifact fill:#f6b26b
req_Requirement --> "*" core_Activity : verified by activities
click core_Activity href "../../classes/core_Activity/"
class core_Activity["Activity"]
req_Requirement --> "*" req_Artifact : traced from sources
click req_Artifact href "../../classes/req_Artifact/"
class req_Artifact["Requirement Artifact"]
style req_Artifact fill:#f6b26b
req_Requirement : id
class req_Requirement["Requirement"]
style req_Requirement fill:#f6b26b
req_Requirement --> "*" req_Requirement: children
click req_Requirement href "../../classes/req_Requirement/"
class req_Requirement["Requirement"]
style req_Requirement fill:#f6b26b
req_Requirement --> "0..1" req_Requirement: parent
click req_Requirement href "../../classes/req_Requirement/"
class req_RequirementRevision["Requirement Revision"]
style req_RequirementRevision fill:#f6b26b
req_RequirementRevision --> "1" req_Requirement: revision of
click req_RequirementRevision href "../../classes/req_RequirementRevision/"
class req_RequirementSpecification["Requirement Specification"]
style req_RequirementSpecification fill:#f6b26b
req_RequirementSpecification --> "1..*" req_Requirement: includes requirements
click req_RequirementSpecification href "../../classes/req_RequirementSpecification/"
class req_RequirementBaseline["Requirement Baseline"]
style req_RequirementBaseline fill:#f6b26b
req_RequirementBaseline --> "1..*" req_Requirement: includes requirements
click req_RequirementBaseline href "../../classes/req_RequirementBaseline/"
class req_RequirementChangeRequest["Requirement Change Request"]
style req_RequirementChangeRequest fill:#f6b26b
req_RequirementChangeRequest --> "1..*" req_Requirement: impacts requirements
click req_RequirementChangeRequest href "../../classes/req_RequirementChangeRequest/"
class req_VerificationCase["Verification Case"]
style req_VerificationCase fill:#f6b26b
req_VerificationCase --> "1..*" req_Requirement: validates requirements
click req_VerificationCase href "../../classes/req_VerificationCase/"
Comments
Requirements aggregate rationales, acceptance criteria, and trace links needed to drive downstream design and verification.
Inheritance
- core_Entity
- core_Artifact
- req_Requirement
- core_Artifact
Fields
| Name | Cardinality | Type | Description | Inheritance |
|---|---|---|---|---|
| id | 1 |
GRID | Globally unique identifier across the whole platform. | core_Entity |
| revisions | * |
Requirement Revision | The set of versioned snapshots derived from this artifact. Inverse of revisionOf. | direct |
| key | 1 |
string | Human-friendly identifier that is unique within a specification context (e.g. SYS-001). | direct |
| title | 1 |
string | Concise human-readable title of the requirement. | direct |
| statement | 1 |
string | Canonical textual form of the requirement. | direct |
| rationale | 0..1 |
string | Justification or reasoning that motivates the requirement intent. | direct |
| category | 0..1 |
string | Classification such as functional, safety, regulatory, or usability. | direct |
| priority | 0..1 |
string | Relative importance or sequencing hint for planning. | direct |
| acceptanceCriteria | * |
string | Objective criteria or measurements that prove the requirement is met. | direct |
| owner | 0..1 |
string | Responsible role or team accountable for the requirement. | direct |
| sourceReference | * |
uriorcurie | Link or citation to originating contract, regulation, or customer input. | direct |
| children | * |
Requirement | Requirements that refine or decompose this requirement. | direct |
| parent | 0..1 |
Requirement | Higher-level requirement that allocates scope to this requirement. | direct |
| satisfied by artifacts | * |
Requirement Artifact | Artifacts, designs, or solutions that implement this requirement. | direct |
| verified by activities | * |
Activity | Verification activities that produce evidence for this requirement. | direct |
| traced from sources | * |
Requirement Artifact | Upstream sources such as contracts, standards, or customer requests. | direct |
Identifier and Mapping Information
Annotations
| property | value |
|---|---|
| grid | grid:workspace:{workspace-id}:requirements:requirement/{id} |
| maturity | EXPERIMENTAL |