Kaizan is a Japanese word under no circumstances to be confused with kaizen:

改竄 kaizan

(n,vs) altering; falsification; faking
改善 kaizen
(n,vs) betterment; improvement; incremental and continuous improvement

So remember to spell check your buzzwords, kids!

Definitions courtesy of JDIC, which is in the public domain. This node is a bit of a historical relic, as there used to be an unintentionally funny writeup proclaiming the virtues of kaizan in this node...