PowerDesigner v15.1 includes new features for the Object-Oriented Model (OOM).
PowerDesigner now supports the import and export of UML models in the format XMI v2.1.
Activity diagrams now support the creation of multiple starts and multiple pools of swimlanes. Linking between pools is supported, and you can group swimlanes and specify custom names for these groups. In addition you can now decompose activities directly in the parent diagram using the editable composite view mode.
The Statechart diagram now supports forks and joins, and states can be decomposed directly in the parent diagram using the editable composite view mode.