A software tool for computing and displaying differences in at least two object
oriented workspaces compared and for reconciling the differences by merging the
workspaces has at least one object association graph used as a modeled template
for defining the nodes and node paths involved in the difference computation, a
data tree structure for displaying element hierarchy symmetrically in each of the
compared workspaces, an executable function for merging the separate workspaces
to reconcile the found differences, and an interactive user display window for
visualizing and directing the process. The tool is characterized in that a user
monitors the data structures in each workspace from the display window and executes
the difference and merge operations through interaction with the data structure.
