Patent ID: 7420573

Claim:
In an electronic device interfaced with a display surface, a method, comprising: providing two block diagram models, said block diagram models having blocks representing components of a system; determining corresponding features of said block diagram models that are present in both of said block diagram models; determining differences between said block diagram models; categorizing said differences between said two block diagram models as functional differences and graphical differences, said functional differences controlling the performance of a system represented by said block diagram models, said graphical differences affecting the appearance of said block diagram model displayed to a user; copying all of said functional differences from said selected one of said two block diagram models; copying less than all of said graphical differences from said selected one of said two block diagram models; inserting the copied functional differences and graphical differences into a second of said two block diagram models; and displaying on said display surface at least a portion of said second of said two block diagram models following said inserting of said copied functional differences and graphical differences in said second of said two block diagram models, said displaying of said at least a portion of said second of said two block diagram models displaying at least some of said copied functional differences and said graphical differences.