Cloud Migration & Modernization

This example demonstrates how to model current-state legacy systems, target-state cloud architectures, and transformation trajectories using the migrates_to verb and lifecycle blocks.

workspace modernization_initiative "Enterprise Cloud Migration" {

    layer "Legacy On-Premises" {
        system sys_legacy_monolith "Legacy ERP Monolith" {
            description "On-premise ERP hosted on legacy virtual machines"
            time "Eliminate"
            risk "High"
            tier "Tier-1"

            lifecycle {
                phase Retire start "2024-01-01" end "2026-12-31"
            }

            relationships {
                this migrates_to sys_cloud_erp "Target modern ERP microservices"
            }
        }
    }

    layer "Target Cloud Platform" {
        system sys_cloud_erp "Cloud-Native Modular ERP" {
            description "Event-driven microservices architecture on AWS"
            time "Invest"
            risk "Low"
            deployment_model "Cloud"

            lifecycle {
                phase Build start "2024-06-01"
            }
        }
    }
}