
174 n The Art of Software Modeling
the routing would be from the right side of the Depot to the bottom of the second
Distribution object. Rearrangement or duplication of elements often will eliminate
the need for long, twisting connection lines.
Rule #4—Use a minimum of angles for rerouting; avoid tracing an
element’s edge closely
Line style is the next characteristic of interest. Line style is often dictated by the
model form (as is the case for UML diagrams). However, when a choice is available,
A:
AirRequestController
AirTravelResult
AirTravel
AirSlice
AirSegment
AirLeg
AirRequestController
AirTravelResult
AirTravel
AirSlice
AirSegment
AirLeg
B:
Figure ...