L7 — Information Model

Purpose & Usage

The L7 Viewpoint is concerned with identifying Information Products, Information Entities and their relationships.

• Information Requirements.
• Message Requirements.
• Information Models.
• Information architecture.
• Information product hierarchy.

Scope

• Shall contain Information Entities relevant for the entity of interest.
• May show an Information Model that specifies the Information Entities.
• May show Information Attributes that are part of the Information Entity.
• May show Information Attribute Types relating to Information Attributes.
• May show Information Products that the Information Model represents.

Representation

• Entity -Relationship diagram.
• Class diagram.

Cut-out (Meta-model)

flowchart TB
    InformationProduct["Information Product"]:::activity
    InformationModel["Information Model"]:::activity
    InformationEntity["Information Entity"]:::activity
    InformationAttribute["Information Attribute"]:::activity
    InformationAttributeType["Information Attribute Type"]:::activity
    InformationModel -->|"represents"| InformationProduct
    InformationModel -->|"specifies"| InformationEntity
    InformationEntity -->|"aggregates"| InformationAttribute
    InformationAttribute -->|"has"| InformationAttributeType
    classDef activity fill:#9DC3E6,stroke:#1F4E79,color:#000

NAFv4 Compliant Example

flowchart TB
    SitReport["«Information Product» Situational Report"]:::activity
    SitTemplate["«Information Model» Situational Report Template"]:::activity
    Terrain["«Information Entity» Terrain Information"]:::activity
    Tracks["«Information Entity» Tracks"]:::activity
    ReportingUnit["«Information Entity» Reporting Unit"]:::activity
    SitReport -->|"represents"| SitTemplate
    SitTemplate -->|"specifies"| Terrain
    SitTemplate -->|"specifies"| Tracks
    SitTemplate -->|"specifies"| ReportingUnit
    classDef activity fill:#9DC3E6,stroke:#1F4E79,color:#000