How to evaluate an ICO correctly?

[Crypto]

I have read many articles about the risks of investing in ICOs, but they all fall into the same, a thorough analysis of each must be done before investing.

I have seen a couple that I liked, but the evaluation when done uniformly, without seeing the specific offer of the project, is flawed.

I can not evaluate a fish for the skills of climbing a tree, but that's not why it's less than others.

What would be the method to evaluate an ICO, where its contribution more than technical, is commercial?