It’s funny, I have seen so many UX Designers not take criticism well. They often default to place all the blame on the client/product owner.
Design Principles are a set of statements that communicate what we want from a project or product. It’s a way for everyone to agree on a couple of core principles that the work should be measured by. By determining these ideas early on, you create a framework that will help you take design decisions and give constructive feedback.
Source: Design Principles: a guide to less shitty feedback – Apegroup — Behind the Screens – Medium
In every design project, at some point we quit what we’re doing and share our unfinished work with colleagues or clients. This begs the question: Just what does the critique do for the design and the rest of the project? Do critiques really help and are they necessary? If so, how do we use their inconsistencies to improve our creative output? Cassie McDaniel explores how critiques can help us navigate complex processes and projects and collaborate effectively to create original and engaging work.
Source: Design Criticism and the Creative Process