This figure can be thought of as a table with four rows.

The top row includes two cells. The cell on the left has the text "Service Engines (BPEL PM, Mediator, Human Workflow, Rules)" and the cell on the right includes the text "Binding Components (JCA Adapters, B2B)."

The second row is a single cell. It includes the text "Service Infrastructure (SCA)."

The third row is a single cell. It includes the text "Oracle Portability Layer (JRF)/OWSM/EDN/UMS."

The bottom row is a single cell. It includes the text "WebLogic Server."