Thanks for being honest. Thinking about whether I can do something with it. I don't know whether it going to cause a failure of the campaign. Can record some stupid film, in one day but does it makes a difference?

Did you notice a month ago Glyphs (Type design software) has released their last update in 2.# series?

First of all, let's clarify what UX Design means. note: I hope it is not just an application of the lean, or scientific methods to the production process. Otherwise, anybody who applies methods is UX designer.

Let's go back to Bill Buxton's explanation.

By my words designing user experience means to apply the creative process to bring a solution which improves the user experience of a product.

So what are the particular benefits of UX design? Long story short: improvement of users experience.

If users feel better while using a product, they are more likely to buy or promote a product. If they feel like a shit, it's much harder to convince them to buy and even ask to promote.

I have never sold UX to a company by explaining my methods, nobody cares methods. Rather I am asking: how we can ensure that we as designers are doing a good job. How do we know that our solution is the right one? How do we know that we have improved the product?

Can’t agree. The method you have described is the lean approach or semi-scientific and can be applied in any industry, occupation or even life, not only design.