Architecture that compiles.

// Order.kuml.kts — no imports required, kUML script host provides them
classDiagram(name = "Order Processing") {
    val status = enumOf(name = "OrderStatus") {
        literal(name = "DRAFT")
        literal(name = "CONFIRMED")
        literal(name = "SHIPPED")
    }

    val customer = classOf(name = "Customer") {
        attribute(name = "email", type = "String")
    }

    val order = classOf(name = "Order") {
        attribute(name = "id", type = "UUID")
        attribute(name = "status", type = status)   // type-safe enum reference
        operation(name = "submit")
    }

    association(source = customer, target = order) {
        source { multiplicity(spec = "1") }
        target { multiplicity(spec = "1..*"); role = "orders" }
    }
}