Lean UX vs. Agile UX, or just confusing terminology?

Information Technology as any other fabrication activity have its processes to make digital products, software and websites. As any process, IT can be organized and optimized into something, e.g named “waterfall”.  We also heard names labeled – Lean, Agile and UX (user and consumer experience) – nowadays, many of these  are “buzz-words” used by developers to describe their process. Although, often project stakeholders have mixed understanding of the meaning and use confusing definitions of these processes. To clarify the difference, Zen Ex Machina offers good visual examination of  Lean and Agile processes, read more.

While we can debate about the specifics, main questions are – how Lean UX and Agile UX help to design better user experience? And which of them is better to use for your project?  Readers are welcome to provide their views and feedback!