The Work Flow Canvas is the area where you actually describe the Work Flow. The building blocks for a Work Flow are two: Nodes and Links, with each link connecting two nodes. In addition, you can use Labels to add some textual description to the Work Flow. Finally, you can group a set of nodes (and the links between them) inside a subsystem, adding clarity to large Work Flows that would otherwise be unscrutable. The look and feel of the Work Flow editor can be customized through the Work Flow properties dialog.