Found this article a beneficial read for understanding the situations in which different models are useful, I thought I would post it in case anyone would also find it beneficial.
Engineering dot com [!!!THIS LINK IS NO LONGER AVAILABLE!!!]
Darren
3 Likes
Fantastic find!
Really will help in my understanding greatly.
Thanks for posting about it!
Regards,
Barry
1 Like
Glad it helps 
Have a good day!
Darren