The OpenEdge Reference Architecture (OERA) defines the general functional categories of components that comprise an business application. The Pacific Extensions to the OERA is a set of designs for building applications in a SaaS or
scalable web environment. It extends These extensions can be used as high-level blueprints for developing, deploying and managing service-oriented business applications in a web-enabled, collaborative environment.

This document provides an overview of the extensions/updates to the OERA.