Domain-Level

Domain ontologies in the Naas framework provide specialized concepts for specific domains, building systematically on BFO and CCO foundations. Each domain ontology addresses particular aspects of AI-powered knowledge management.

Domain Architecture

The Naas Ontology includes several key domain ontologies:

AI Agent Domain Ontology

The AIAgentOntology.ttl provides comprehensive modeling of AI systems and their components:

Core AI System Classes

@prefix abi: <http://ontology.naas.ai/abi/> .
@prefix bfo: <http://purl.obolibrary.org/obo/> .
@prefix cco: <https://www.commoncoreontologies.org/> .

# AI System hierarchy
abi:AISystem a owl:Class ;
    rdfs:subClassOf bfo:BFO_0000040 ; # Material Entity
    rdfs:label "AI System"@en ;
    skos:definition "A material entity that implements artificial intelligence capabilities."@en ;
    skos:example "ChatGPT server infrastructure, Claude API endpoints, Gemini model instances."@en .

abi:AIModelInstance a owl:Class ;
    rdfs:subClassOf bfo:BFO_0000040 ; # Material Entity
    rdfs:label "AI Model Instance"@en ;
    skos:definition "A material entity that is a specific instantiation of an AI model running on hardware."@en ;
    skos:example "GPT-4 model running on OpenAI's servers, Claude-3-Sonnet instance."@en .

abi:AIAgent a owl:Class ;
    rdfs:subClassOf cco:ont00001017 ; # Agent
    rdfs:label "AI Agent"@en ;
    skos:definition "An agent that is an artificial intelligence system capable of autonomous decision-making and task execution."@en ;
    skos:example "ChatGPT, Claude, Gemini, and other AI systems that can engage in conversations and perform various tasks."@en .

Agent Roles and Capabilities

# Realizable entities for AI agent roles
abi:AgentRole a owl:Class ;
    rdfs:subClassOf bfo:BFO_0000017 ; # Realizable Entity
    rdfs:label "Agent Role"@en ;
    skos:definition "A realizable entity that defines the specialized function or role of an AI agent within a system."@en ;
    skos:example "Primary responder, fallback handler, specialized task executor, coordinator, validator."@en .

# Specific agent roles
abi:PrimaryResponderRole a owl:Class ;
    rdfs:subClassOf abi:AgentRole ;
    rdfs:label "Primary Responder Role"@en ;
    skos:definition "The role of being the first agent to handle incoming requests."@en .

abi:FallbackHandlerRole a owl:Class ;
    rdfs:subClassOf abi:AgentRole ;
    rdfs:label "Fallback Handler Role"@en ;
    skos:definition "The role of handling requests when primary agents are unavailable or fail."@en .

abi:SpecializedTaskExecutorRole a owl:Class ;
    rdfs:subClassOf abi:AgentRole ;
    rdfs:label "Specialized Task Executor Role"@en ;
    skos:definition "The role of executing specific types of tasks that require specialized capabilities."@en .

Infrastructure Components

# System infrastructure
abi:LoadBalancer a owl:Class ;
    rdfs:subClassOf bfo:BFO_0000040 ; # Material Entity
    rdfs:label "Load Balancer"@en ;
    skos:definition "A material entity that distributes incoming requests across multiple AI agents to optimize performance and availability."@en .

abi:APIEndpoint a owl:Class ;
    rdfs:subClassOf bfo:BFO_0000040 ; # Material Entity
    rdfs:label "API Endpoint"@en ;
    skos:definition "A material entity that provides a specific interface for accessing AI system functionality."@en .

abi:ModelRegistry a owl:Class ;
    rdfs:subClassOf bfo:BFO_0000040 ; # Material Entity
    rdfs:label "Model Registry"@en ;
    skos:definition "A material entity that maintains information about available AI models and their capabilities."@en .

Organization Domain Ontology

The OrganizationOntology.ttl extends CCO organization concepts for AI contexts:

# AI-focused organization types
abi:AIResearchOrganization a owl:Class ;
    rdfs:subClassOf cco:ont00001180 ; # Organization
    rdfs:label "AI Research Organization"@en ;
    skos:definition "An organization primarily focused on artificial intelligence research and development."@en ;
    skos:example "OpenAI, Anthropic, Google DeepMind, Mistral AI."@en .

abi:AIServiceProvider a owl:Class ;
    rdfs:subClassOf cco:ont00000443 ; # Commercial Organization
    rdfs:label "AI Service Provider"@en ;
    skos:definition "A commercial organization that provides AI services to other organizations or individuals."@en .

# Organizational relationships
abi:develops a owl:ObjectProperty ;
    rdfs:label "develops"@en ;
    rdfs:domain abi:AIResearchOrganization ;
    rdfs:range abi:AIModelInstance ;
    skos:definition "Relates an AI research organization to the AI models it develops."@en .

abi:operates a owl:ObjectProperty ;
    rdfs:label "operates"@en ;
    rdfs:domain abi:AIServiceProvider ;
    rdfs:range abi:AISystem ;
    skos:definition "Relates an AI service provider to the AI systems it operates."@en .

Capability Domain Ontology

The CapabilityOntology.ttl models cognitive and technical capabilities:

# Cognitive capabilities
abi:CognitiveCapability a owl:Class ;
    rdfs:subClassOf bfo:BFO_0000017 ; # Realizable Entity
    rdfs:label "Cognitive Capability"@en ;
    skos:definition "A realizable entity that represents a cognitive ability of an AI system."@en .

# Specific cognitive capabilities
abi:TruthSeekingCapability a owl:Class ;
    rdfs:subClassOf abi:CognitiveCapability ;
    rdfs:label "Truth-Seeking Capability"@en ;
    skos:definition "The capability to analyze information with a focus on finding truth and identifying potential biases or errors."@en .

abi:EthicalReasoningCapability a owl:Class ;
    rdfs:subClassOf abi:CognitiveCapability ;
    rdfs:label "Ethical Reasoning Capability"@en ;
    skos:definition "The capability to analyze situations from ethical perspectives and provide morally-informed responses."@en .

abi:MultimodalProcessingCapability a owl:Class ;
    rdfs:subClassOf abi:CognitiveCapability ;
    rdfs:label "Multimodal Processing Capability"@en ;
    skos:definition "The capability to process and integrate information from multiple modalities (text, image, audio, video)."@en .

# Capability measurement
abi:CapabilityLevel a owl:Class ;
    rdfs:subClassOf bfo:BFO_0000019 ; # Quality
    rdfs:label "Capability Level"@en ;
    skos:definition "A quality that measures the proficiency level of a specific capability."@en .

Person Domain Ontology

The PersonOntology.ttl models individuals and their relationships to AI systems:

# Person as independent continuant
abi:Person a owl:Class ;
    rdfs:subClassOf bfo:BFO_0000004 ; # Independent Continuant
    rdfs:label "Person"@en ;
    skos:definition "An individual human being."@en .

# AI-related person roles
abi:AIResearcher a owl:Class ;
    rdfs:subClassOf bfo:BFO_0000017 ; # Realizable Entity (Role)
    rdfs:label "AI Researcher"@en ;
    skos:definition "A role of a person who conducts research in artificial intelligence."@en .

abi:AIEngineer a owl:Class ;
    rdfs:subClassOf bfo:BFO_0000017 ; # Realizable Entity (Role)
    rdfs:label "AI Engineer"@en ;
    skos:definition "A role of a person who develops and maintains AI systems."@en .

abi:OntologyEngineer a owl:Class ;
    rdfs:subClassOf bfo:BFO_0000017 ; # Realizable Entity (Role)
    rdfs:label "Ontology Engineer"@en ;
    skos:definition "A role of a person who designs and develops ontological structures."@en .

# Person-AI relationships
abi:interactsWith a owl:ObjectProperty ;
    rdfs:label "interacts with"@en ;
    rdfs:domain abi:Person ;
    rdfs:range abi:AIAgent ;
    skos:definition "Relates a person to an AI agent they interact with."@en .

Offering Domain Ontology

The OfferingOntology.ttl models products and services in the AI domain:

# AI offerings
abi:AIOffering a owl:Class ;
    rdfs:subClassOf bfo:BFO_0000031 ; # Generically Dependent Continuant
    rdfs:label "AI Offering"@en ;
    skos:definition "A generically dependent continuant that represents an AI-related product or service offering."@en .

abi:AIModelOffering a owl:Class ;
    rdfs:subClassOf abi:AIOffering ;
    rdfs:label "AI Model Offering"@en ;
    skos:definition "An AI offering that provides access to a specific AI model."@en ;
    skos:example "GPT-4 API access, Claude Pro subscription, Gemini Advanced."@en .

abi:OntologyService a owl:Class ;
    rdfs:subClassOf abi:AIOffering ;
    rdfs:label "Ontology Service"@en ;
    skos:definition "An AI offering that provides ontology-related services."@en ;
    skos:example "Ontology engineering consultation, knowledge graph construction, semantic data integration."@en .

# Service level agreements
abi:ServiceLevel a owl:Class ;
    rdfs:subClassOf bfo:BFO_0000019 ; # Quality
    rdfs:label "Service Level"@en ;
    skos:definition "A quality that characterizes the level of service provided by an AI offering."@en .

Cross-Domain Integration Example

Here's how multiple domain ontologies work together:

# Complete scenario: AI research organization with capabilities
abi:anthropic a abi:AIResearchOrganization ;
    rdfs:label "Anthropic"@en ;
    abi:develops abi:claude_3_sonnet ;
    abi:employs abi:dario_amodei .

abi:claude_3_sonnet a abi:AIModelInstance ;
    rdfs:label "Claude 3 Sonnet"@en ;
    bfo:BFO_0000087 abi:ethical_reasoning_role ; # has role
    abi:hasCapability abi:ethical_reasoning_capability .

abi:ethical_reasoning_capability a abi:EthicalReasoningCapability ;
    rdfs:label "Ethical Reasoning Capability"@en ;
    bfo:BFO_0000086 abi:high_capability_level . # has quality

abi:dario_amodei a abi:Person ;
    rdfs:label "Dario Amodei"@en ;
    bfo:BFO_0000087 abi:ai_researcher_role ; # has role
    abi:interactsWith abi:claude_3_sonnet .

abi:claude_pro_offering a abi:AIModelOffering ;
    rdfs:label "Claude Pro Offering"@en ;
    abi:providesAccessTo abi:claude_3_sonnet ;
    bfo:BFO_0000086 abi:premium_service_level . # has quality

Domain Ontology Patterns

All domain ontologies follow consistent patterns:

1. BFO Grounding

Every concept is properly grounded in BFO categories:

Material entities for physical/digital systems
Processes for activities and workflows
Qualities for measurable properties
Realizable entities for roles and capabilities
Information entities for data and knowledge structures

2. CCO Extension

Domain concepts extend appropriate CCO mid-level concepts rather than directly extending BFO.

3. Systematic Relationships

Domain ontologies define systematic relationships between concepts using both BFO relations and domain-specific properties.

4. Foundry Integration

All domain concepts can be tagged with foundry curation information for organizational management.

Next Steps

Domain ontologies provide the specialized foundation for:

Application-Level - Implementation-specific concepts
Process-Centric Routing - AI routing based on domain capabilities

Domain ontologies provide the specialized concepts needed for AI-powered knowledge management while maintaining systematic grounding in BFO and CCO foundations.

Domain Architecture​

AI Agent Domain Ontology​

Core AI System Classes​

Agent Roles and Capabilities​

Infrastructure Components​

Organization Domain Ontology​

Capability Domain Ontology​

Person Domain Ontology​

Offering Domain Ontology​

Cross-Domain Integration Example​

Domain Ontology Patterns​

1. BFO Grounding​

2. CCO Extension​

3. Systematic Relationships​

4. Foundry Integration​

Next Steps​