Thank you. This looks very interesting. Was trying to find a free version of the article and found more of Parnas works here: http://www.informatik.uni-trier.d

Thank you. This looks very interesting. Was trying to find a free version of the article and found more of Parnas works here: http://www.informatik.uni-trier.de/~ley/db/indices/a-tree/p/Parnas:David_Lorge.html http://www.informatik.uni-trier.de/~ley/db/indices/a-tree/p/...