11. The method of claim 10 , wherein the processor and the memory are further configured to: indentify blocks of text within the first and second text-based models which correspond to blocks of the high level block diagram-based model.
11. The method of claim 10 , wherein the processor and the memory are further configured to: indentify blocks of text within the first and second text-based models which correspond to blocks of the high level block diagram-based model. 12. The method of claim 11 , wherein the processor and the memory are further configured to: identify each block that has been added, modified, or deleted; and store data indicating each block that has been added, modified, or deleted.