While diagrams play a central role in the software lifecycle,
computer-based modeling tools are often not used in practice.
At least to some extent, this is due to their lack of
exibility and support of recurring and tedious \model administration"
tasks. Such tasks, like the rearrangement of
existing model elements to provide the space required by a
new element or the manual adjustment of lines after moving
an element, distract the user from the actual modeling
In this paper, we present an approach to relieve the modeler
from the painful manual placement of the labels accompanying
the links in a diagram by handing this task over to
the modeling tool. Additionally, we give a short overview
over other modeling activities that come along with the creation
and manipulation of a diagram but should be handled
by the tool and not the user.