A LOB is a declared work lane: trees, agents and
formulas tagged with its domain are its work — routing is the
existing domain machinery, this just makes lanes visible and manageable. LOBs nest:
the tree below is the org-chart of work (priority is hierarchical); a parent's numbers
show own/including children when they differ.
Domains that agents and trees are already using with no LOB declared. Adopting one just gives the lane a name and a place to keep its context — it changes nothing about how work routes.