"Best" is tricky, but Vertabelo have been doing practical data model design walkthroughs for various scenarios over the past year or two: http://www.vertabelo.c

"Best" is tricky, but Vertabelo have been doing practical data model design walkthroughs for various scenarios over the past year or two: http://www.vertabelo.com/blog http://www.vertabelo.com/blog .. things as diverse as data models for a 3D chess set, parking system, pet care company, office leasing, etc.