With classic Big Bad lines like :
Skillful use of parameters are the difference between BIM and parametric modeling. Get some information in that model, by Jove. But, beware, not all parameters are created equal!and...
Pretty straight forward stuff really. Keep your mind organized while deciding what kind of parameters to use. Definitely do not listen to The Pogues while creating parameters. Save them for hardcore geometry modeling. Maybe spin some Yo-Yo Ma. Relaaaaax.
Parameters: Family vs. Project vs. Shared Family vs. Shared Project is worth a gander.
Have a great Memorial Day folks. Take a couple minutes and remember why we have Monday off.