"Release Planning is an essential part of many Scrum projects which
means all longer term development activities especially on enterprise
level. You won't be able to run a scaled, multi-team, long-term Scrum
without any means of Release Planning based on team
estimates."
as described by Andreas Schliep (CST,CSC) in Agile-Leaders group in
discussing Scrum updates by Ken Schwaber
Nimesh Soni
skype: nimesh0308 | twitter: @beyondCSM
"Agile Release Planning" Book:
http://amzn.com/B004TGTHNM