How is Six Sigma different from other traditional approaches?

[benchmarksixsigma]

Six Sigma differs from other Traditional performance improvement
programs in its
focus on input variables. While traditional methods depend on
measuring outputs
and establishing control plans to shield customers from organizational
defects,
a Six Sigma program demands that problems be addressed at the root
level,
eliminating the need for unnecessary inspection and rework processes.

Also, while other programs mention philosophies, ideas, and
requirements (e.g.
ISO 9001 specifies requirements) Six Sigma provides a structured
roadmap on how
to bring benefits. Six Sigma as a strategic tool is customer focused
and is
ultimately designed to increase profits through enhanced customer
satisfaction.