12 KiB
12 KiB
Ontological Documentation Templates
This document provides standardized templates for creating comprehensive ontological documentation for software systems.
Core Documentation Templates
1. Concept Definition Template
# [Concept Name]
## Quick Reference
- **Type**: [Entity/Value Object/Service/Repository/etc.]
- **Category**: [Domain/Business/Infrastructure/etc.]
- **Status**: [Active/Deprecated/Experimental]
- **Owner**: [Team/Person responsible]
## Definition
[Clear, concise definition of the concept. What is it? What purpose does it serve?]
## Purpose and Scope
**Why this concept exists:**
- [Problem it solves]
- [Business requirement it addresses]
- [Technical necessity]
**Scope and Boundaries:**
- [What's included]
- [What's excluded]
- [Related but separate concepts]
## Characteristics
### Essential Properties
- **Property 1**: [Description] - [Type] - [Constraints]
- **Property 2**: [Description] - [Type] - [Constraints]
### Behavioral Aspects
- **Action 1**: [Description] - [Preconditions] - [Postconditions]
- **Action 2**: [Description] - [Preconditions] - [Postconditions]
### Constraints and Rules
- [Business rule 1]
- [Validation rule 2]
- [Integrity constraint 3]
## Relationships
### Hierarchical Relationships
- **Is-A**: [Parent Concept] - [Rationale]
- **Has-A**: [Child Components] - [Composition details]
### Dependency Relationships
- **Depends-On**: [Required Concept] - [Dependency type]
- **Required-By**: [Dependent Concept] - [Usage context]
### Association Relationships
- **Associates-With**: [Related Concept] - [Nature of association]
- **Similar-To**: [Analogous Concept] - [Comparison points]
## Implementation
### Code Representation
```python
# Example implementation
class [ConceptName]:
def __init__(self):
self.property1 = None
self.property2 = None
Data Structure
- Storage Format: [Database table, JSON, etc.]
- Serialization: [How it's represented in API/transport]
- Persistence: [Where and how it's stored]
Lifecycle
- Creation: [How instances are created]
- Evolution: [How instances change over time]
- Deletion: [How instances are removed]
Examples
Concrete Examples
-
Example 1: [Specific instance with explanation]
- [Context]
- [Properties]
- [Behavior]
-
Example 2: [Another specific instance]
- [Context]
- [Properties]
- [Behavior]
Usage Patterns
- Pattern 1: [Common usage scenario]
- Pattern 2: [Another usage scenario]
Evolution and History
- Created: [Date] - [Initial reason]
- Major Changes: [Change history]
- Future Roadmap: [Planned modifications]
Related Documentation
- [Link to related concepts]
- [Link to implementation details]
- [Link to API documentation]
- [Link to user documentation]
### 2. Relationship Documentation Template
```markdown
# [Relationship Type]: [Source Concept] → [Target Concept]
## Relationship Overview
- **Type**: [Is-A/Part-Of/Depends-On/Associates-With/etc.]
- **Source**: [Source Concept Name]
- **Target**: [Target Concept Name]
- **Strength**: [Strong/Medium/Weak]
- **Direction**: [Unidirectional/Bidirectional]
## Definition
[Clear explanation of what this relationship means in the domain context]
## Rationale
**Why this relationship exists:**
- [Business reason]
- [Technical necessity]
- [Domain modeling decision]
## Characteristics
### Cardinality
- **Source → Target**: [One-to-One/One-to-Many/Many-to-Many]
- **Minimum**: [Required/Optional - specify minimum]
- **Maximum**: [Unbounded/Specific limit]
### Constraints
- **Existence Constraint**: [Rules about when relationship can exist]
- **Deletion Constraint**: [What happens when one end is deleted]
- **Update Constraint**: [How relationship changes are handled]
### Semantic Properties
- **Transitivity**: [Whether relationship is transitive]
- **Symmetry**: [Whether relationship is symmetric]
- **Reflexivity**: [Whether relationship is reflexive]
## Implementation
### Code Representation
```python
# Example implementation
class SourceConcept:
def __init__(self):
self.target_concepts = [] # Relationship implementation
Data Modeling
- Foreign Keys: [How relationship is stored in database]
- Join Tables: [If applicable, for many-to-many relationships]
- Indexing: [Performance considerations]
API Representation
- REST Endpoints: [How relationship is exposed in API]
- GraphQL Schema: [How relationship appears in GraphQL]
- Serialization: [How relationship is represented in JSON/XML]
Examples
Example Instances
-
Example 1: [Specific relationship instance]
- Source Instance: [Details]
- Target Instance: [Details]
- Context: [When and why this exists]
-
Example 2: [Another specific instance]
- Source Instance: [Details]
- Target Instance: [Details]
- Context: [When and why this exists]
Usage Patterns
- Creation Pattern: [How relationships are established]
- Query Pattern: [How relationships are accessed]
- Modification Pattern: [How relationships are changed]
Validation Rules
Business Rules
- [Rule 1]: [Description and validation logic]
- [Rule 2]: [Description and validation logic]
Technical Constraints
- [Constraint 1]: [Technical limitation or requirement]
- [Constraint 2]: [Performance or scalability consideration]
Related Documentation
- [Source Concept Documentation]
- [Target Concept Documentation]
- [Related Relationships]
- [Implementation Details]
### 3. Domain Model Overview Template
```markdown
# [Domain Name] Domain Model
## Executive Summary
[Brief overview of the domain and its core concepts]
## Core Concepts Map
[Visual representation or hierarchical list of main concepts]
### Primary Entities
- **[Entity 1]**: [Brief description]
- **[Entity 2]**: [Brief description]
- **[Entity 3]**: [Brief description]
### Supporting Concepts
- **[Value Object 1]**: [Brief description]
- **[Service 1]**: [Brief description]
- **[Repository 1]**: [Brief description]
## Concept Hierarchy
[Top-level concepts] ├── [Category 1] │ ├── [Sub-concept 1.1] │ ├── [Sub-concept 1.2] │ └── [Sub-concept 1.3] ├── [Category 2] │ ├── [Sub-concept 2.1] │ └── [Sub-concept 2.2] └── [Category 3] ├── [Sub-concept 3.1] └── [Sub-concept 3.2]
## Key Relationships
### Critical Relationships
1. **[Relationship 1]**: [Source] → [Target]
- [Importance and impact]
- [Business significance]
2. **[Relationship 2]**: [Source] → [Target]
- [Importance and impact]
- [Business significance]
### Relationship Patterns
- **Composition Pattern**: [Description]
- **Dependency Pattern**: [Description]
- **Association Pattern**: [Description]
## Business Rules and Constraints
### Domain Rules
1. **[Rule 1]**: [Description] - [Impact]
2. **[Rule 2]**: [Description] - [Impact]
### Invariants
- **Invariant 1**: [What must always be true]
- **Invariant 2**: [What must always be true]
## Processes and Workflows
### Core Business Processes
1. **[Process 1]**
- **Trigger**: [What starts the process]
- **Steps**: [Sequence of actions]
- **Actors**: [Who/what participates]
- **Outcomes**: [Results and side effects]
2. **[Process 2]**
- **Trigger**: [What starts the process]
- **Steps**: [Sequence of actions]
- **Actors**: [Who/what participates]
- **Outcomes**: [Results and side effects]
### State Machines
- **[Entity 1] States**: [State transitions and conditions]
- **[Entity 2] States**: [State transitions and conditions]
## Integration Points
### External Systems
- **[System 1]**: [Integration type and purpose]
- **[System 2]**: [Integration type and purpose]
### Data Flows
- **Inbound Data**: [What data comes from where]
- **Outbound Data**: [What data goes to where]
## Evolution Strategy
### Current State
- [Description of current domain model state]
### Planned Changes
- **[Change 1]**: [Description and timeline]
- **[Change 2]**: [Description and timeline]
### Migration Strategy
- [How to transition from current to future state]
## Quality Metrics
### Model Health
- **Complexity**: [Assessment of model complexity]
- **Consistency**: [How consistent the model is]
- **Completeness**: [Gaps and coverage]
### Usage Metrics
- **Most Used Concepts**: [Statistics on concept usage]
- **Relationship Density**: [How interconnected concepts are]
- **Change Frequency**: [How often concepts change]
## Related Documentation
- [Link to detailed concept documentation]
- [Link to API documentation]
- [Link to business requirements]
- [Link to technical architecture]
4. Ontology Change Log Template
# Ontology Change Log
## Version [Version Number] - [Date]
### Summary
[Brief overview of changes in this version]
### Added Concepts
- **[Concept Name]**: [Reason for addition] - [Impact]
- **[Concept Name]**: [Reason for addition] - [Impact]
### Modified Concepts
- **[Concept Name]**: [Changes made] - [Reason for change] - [Impact]
- **[Concept Name]**: [Changes made] - [Reason for change] - [Impact]
### Removed Concepts
- **[Concept Name]**: [Reason for removal] - [Migration strategy]
### Added Relationships
- **[Relationship]**: [Source] → [Target] - [Reason]
### Modified Relationships
- **[Relationship]**: [Source] → [Target] - [Changes] - [Reason]
### Removed Relationships
- **[Relationship]**: [Source] → [Target] - [Reason] - [Impact]
### Breaking Changes
- **[Change Description]**: [Impact on dependent systems] - [Migration required]
### Migration Guide
[Step-by-step guide for adapting to these changes]
## Previous Versions
[Link to previous change logs]
Specialized Templates
API Ontology Template
# [API Name] Ontology
## Resource Model
[List of all resources and their relationships]
## Semantic Operations
[CRUD operations and their domain meanings]
## Media Types
[Content types and their semantic significance]
## Hypermedia Controls
[HATEOAS relationships and link semantics]
Database Schema Ontology Template
# [Database Name] Schema Ontology
## Table Concepts
[Tables as domain concepts]
## Column Semantics
[Columns as concept properties]
## Constraint Logic
[Constraints as business rules]
## Trigger Semantics
[Triggers as automated processes]
Event-Driven Architecture Ontology Template
# [System Name] Event Ontology
## Event Taxonomy
[Categorization of all events]
## Event Relationships
[Causal and temporal relationships]
## Event Semantics
[Meaning and significance of events]
## Process Integration
[How events drive business processes]
Template Usage Guidelines
When to Use Each Template
- Concept Definition: Use for every significant domain concept
- Relationship Documentation: Use for critical or complex relationships
- Domain Model Overview: Use for bounded contexts or major domains
- Change Log: Use for every ontology modification
- Specialized Templates: Use for specific architectural patterns
Quality Checklist
For each documentation entry:
- Definition is clear and unambiguous
- Purpose and scope are well-defined
- Relationships are accurately described
- Examples are relevant and illustrative
- Implementation details are correct
- Related documentation is linked
- Review date is recorded
- Owner is identified
Review Process
- Self-Review: Check completeness and accuracy
- Peer Review: Get feedback from other developers
- Domain Expert Review: Validate with domain experts
- Architecture Review: Ensure alignment with system architecture
- Documentation Review: Check for clarity and usability