They both manages to control the ball as much as possible, but there are some differences. I heard that Tiki-kata is only for very high skilled player like Messi, Iniesta or Xavi. Tiki-kata is like a superior skilled players playing with inferior players. When Barcelona has no Messi, Iniesta or Xavi, then Tiki-kata will have no success.
I doubt that Pep Guardiola can be successful in Bayer Munich if he adopts Tiki-kata philosophy for Bayer. This is cos Bayer does not have many superior skilled players except Roben or Ribery (better than average a bit but did not achieve to Messi level).
So what are the differences?