Just ran across several links to some best practices. In the forlorn hope that people will actually A) Search this forum before posting or B) Read the FAQs, I’m posting the link here and in the FAQ of FAQs.
Enjoy
http://www-10.lotus.com/ldd/dwteamblog.nsf/dx/best-practice-mania
http://www-10.lotus.com/ldd/bpmpblog.nsf/
Doug