This diagram is a graphical representation of the enterprise topology for Oracle Fusion Customer Relationship Management. It includes icons and symbols that represent the hardware load balancer, host computers, firewalls, and other elements of the topology. At a high level, it shows the main tiers of the topology, including:

• The Web Tier or DMZ, where the Web servers reside

• The Application Tier, where the application servers reside

• The Data Tier, where the databases reside. The databases contain customer data and the schemas required by the application tier products

Details are described in the surrounding text.