Hi Matt,
Sorry to confuse the issue...but I have now edited the title to what I actually meant to say !
Yes there are differences, but also, some amount of correlation, but I hope the subject is now wide enough to have a good debate on the different requirements.
**correlation noun [C or U]
a connection between two or more things, often one in which one of them causes or influences the other:
Some will have differing views on each aspect or on them both in general.
In both cases, someone is taking a tree to see what can be done for improvement. However, there are so many levels of "raw material" as highlighted in Walters excellent link... that I was interested to hear of everyones thoughts at what should be presented.
Best Regards,
Ian.