infrastructure

ArchiMate 3.2 Equivalent: Node / Device / System Software (Technology Layer)

Represents physical or virtual infrastructure assets such as servers, Kubernetes clusters, database instances, messaging brokers, or network load balancers.

Visual Styling

To apply custom shapes (like cylinders for databases), icons, or CSS styles to infrastructure, use a Style Rule (e.g. style infrastructure where provider starts_with "AWS RDS" { shape "cylinder" icon "database" }).

---

Syntax

infrastructure <id> "<Display Name>" {
    description "<text>"
    owner "<team>"
    tags ["tag1", "tag2"]
    time "Tolerate" | "Invest" | "Migrate" | "Eliminate"
    cost <amount> <unit>
    risk "High" | "Medium" | "Low"
    criticality "Mission-Critical" | "Business-Critical" | "Operational" | "Administrative" | "Standard"
    provider "<cloud_provider>"
    internet_facing true | false

    security {
        confidentiality Low | Medium | High | Critical
        integrity Low | Medium | High | Critical
        availability Low | Medium | High | Critical
    }

    relationships { ... }
}

---

Properties

Property	Type	Allowed Values	Description
description	string	Free text	Infrastructure specifications
owner	string	Free text	Infrastructure custodian
tags	string[]	Array of strings	Categorization tags
time	enum	"Tolerate", "Invest", "Migrate", "Eliminate"	TIME disposition
cost	cost	cost 4500 month	Hosting & cloud compute spend
risk	enum	"High", "Medium", "Low"	Hardware/platform risk rating
criticality	enum	"Mission-Critical", "Business-Critical", "Operational", "Administrative", "Standard"	Impact tier
provider	string	e.g. "AWS RDS", "Equinix", "Azure VM"	Hosting provider or service
internet_facing	boolean	true | false	Public IP exposure flag

---

Allowed Relationship Verbs & Targets

Verb	ArchiMate Relation	Allowed Target Entity Types
serves	Serving	actor, process, system, app, agent
hosts	Assignment / Hosting	system, app, component, agent, trust_boundary
migrates_to	Transformation	system, app, component, infrastructure, environment, agent
governed_by	Governance	policy, standard
protects	Protection	system, app, component, infrastructure, data_object, process, agent, trust_boundary

---

Complete Example

infrastructure infra_aurora_db "Aurora PostgreSQL Primary" {
    description "Multi-AZ PostgreSQL cluster storing core ledger data"
    provider "AWS RDS"
    criticality "Mission-Critical"
    internet_facing false
    cost 3200 month

    security {
        confidentiality Critical
        integrity Critical
        availability Critical
    }

    relationships {
        this hosts data_transaction "Houses structured payment records"
        this governed_by pol_db_encryption "Enforces KMS encryption at rest"
    }
}