OTM follows a standard three-tier architecture — a widely used design in enterprise software where the application is split into three distinct layers: Web Tier, Application Tier, and Database Tier. Each tier has a specific responsibility, and together they allow OTM to scale, be maintained, and support many users simultaneously.

Depending on the deployment model — on-premise or SaaS — the underlying infrastructure differs, but the three-tier concept remains the same. In on-premise deployments, your organization manages each tier on its own servers. In SaaS (cloud) deployments, Oracle manages the infrastructure and these tiers are hosted and maintained by Oracle.