- The document discusses OpenESB and how it aims to simplify integration application development by providing reusable components for common tasks like connectivity, message transformation, and orchestration. This allows separating business logic from low-level code and makes applications easier to understand, maintain and scale to many integrations. - OpenESB provides a runtime based on GlassFish and JBI along with design tools in NetBeans. It uses standard protocols and formats to integrate existing systems and expose functionality as services. - Examples show how OpenESB can be used to implement common integration scenarios like processing purchase orders from different systems more simply compared to custom coding each step. Workflows can be modeled visually using BPEL.