Difference between WPAN, DIGIMESH and ZIGBEE?

My question is because Im reading the manual - Xbee Firmware Library 1.5.5 on the CodeWarrior Help.

There is a topic who name is WPAN Overview and it talk about the Endpoint Table. And, I m confused with this definitions.

Someone knows how to explain this table?

Digi Mesh is a True Peer to peer mesh with no master and no slave. ALL nodes are treated the same.

Zigbee is a Tree mesh network where the Coordinator establishes the network and the Routers or End devices Join the Coordinators network.