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ArchiMate Modeling Fundamentals
ArchiMate is The Open Group's standard for enterprise architecture modeling, providing a visual language with 56 elements across 6 core layers connected by 11 relationship types.
The Six Layers
| Layer | Purpose | Key Elements |
|---|
| Motivation | Why (stakeholder concerns, goals) | Stakeholder, Driver, Goal, Requirement, Principle |
| Strategy | What enterprise intends to achieve | Capability, Resource, Value Stream, Course of Action |
| Business | Business operations | Business Actor, Role, Process, Function, Service, Object |
| Application | Software and data | Application Component, Service, Interface, Data Object |
| Technology | Infrastructure | Node, Device, System Software, Artifact, Network |
| Implementation & Migration | Change management | Work Package, Deliverable, Plateau, Gap |
Three Fundamental Aspects
Every layer contains elements organized into three aspects:
- Active Structure (Nouns) : Elements that perform behavior—actors, components, nodes, interfaces
- Behavior (Verbs) : Activities performed—processes, functions, services, events
- Passive Structure (Objects) : Elements behavior acts upon—business objects, data objects, artifacts
Element Selection Decision Guide
Active Structure: Who/What Performs Behavior?
| Need to model... | Use | Not |
|---|
| Specific person/system | Business Actor / Application Component | Role |
| Responsibility pattern | Business Role | Actor |
| Collaboration | Business Collaboration | Multiple separate actors |
| External access point | Interface | Component |
Behavior: What Is Performed?
| Need to model... | Use | Not |
|---|
| Sequence with defined result | Process | Function |
| Ongoing capability/grouping | Function | Process |
| Externally visible functionality | Service | Process/Function |
| Something that triggers behavior | Event | Process step |
Passive Structure: What Is Acted Upon?
| Need to model... | Use | Not |
|---|
| Business-level concept | Business Object | Data Object |
| Structured application data | Data Object | Business Object |
| Perceptible information form | Representation | Artifact |
| Deployable file/module | Artifact | Data Object |
Common Confusion Points
| Pair | Use First When... | Use Second When... |
|---|
| Component vs Function | Static structural unit | Behavior performed (no structure) |
| Process vs Function | Has sequence, start/end | Continuous, no sequence |
| Service vs Process | External view, what's offered | Internal, how it's done |
| Actor vs Role | Specific entity | Responsibility that can be filled by different actors |
Output Formats
When creating ArchiMate models, use these formats:
Textual Description Format
Element Type: [Name]
Layer: [Layer Name]
Description: [What this element represents]
Relationships:
- [relationship type] → [Target Element]
Notation Format
[Element Type: Name] → [relationship] → [Element Type: Name]
Example:
[Business Role: Claims Handler] → [assignment] → [Business Process: Handle Insurance Claim]
[Business Process: Handle Insurance Claim] → [realization] → [Business Service: Claims Processing]
Key Principles
- Layer consistency : Keep elements in appropriate layers; use cross-layer relationships to connect
- Service orientation : Expose functionality through services, not direct process/function access
- Separation of concerns : Distinguish who (actors/roles), what (behavior), and what's affected (objects)
- Realization chains : Connect logical to physical through realization relationships
Additional Resources
Reference Files
For detailed element catalogs and layer-specific guidance:
references/element-catalog.md - Complete catalog of all 56 ArchiMate elements with usage guidancereferences/layer-details.md - Detailed patterns for each layer
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