This standard ensures systems are integrated through stable, loosely coupled interfaces-enabling teams to evolve domains independently without breaking changes. It supports resilience, modularity, and flexibility at scale.
Aligned to our "Architect for Change" policy, this standard reduces integration risk, improves maintainability, and strengthens autonomy. Without it, changes ripple unpredictably across domains, slowing delivery and increasing system fragility.
Clearly defined impacts of meeting this standard include improved delivery flow, reduced risk, higher system resilience, and better alignment to business needs. Over time, teams will see reduced rework, faster time to value, and stronger system integrity.
Level 1 – Initial: Integrations are informal, with frequent breaking changes.
Level 2 – Managed: Interfaces are documented and stable, but coupling remains high.
Level 3 – Defined: Teams adopt standards (e.g. versioning, contracts) for reliable integration.
Level 4 – Quantitatively Managed: Integration stability and coupling metrics are tracked.
Level 5 – Optimising: Interfaces evolve through intentional governance and runtime insights.