Louis Kessler’s Behold Blog     The Behold User Forum

Rather than "make an edit" and "undo", I probably should have said "add one data item" then "delete that item". It does at least insure that data not understood by the program is retained, and exported with exactly the same structure as was imported. Darren Price

I propose a conformance requirement possibly more strict than what Louis describes. I think that in order for any software tool that performs both import and export should pass the following test: (1) Import any standard-conformant data file; (2) make one edit to the file; (3) undo the previous edit; (4) ...