Research
I always start with questions: What is the business goal? What type of user is this for? Are there any limitations to worry about?
Ideate
This is my favorite part, throwing ideas at the canvas and see what works and what doesn't.
Define & Refine
Once I have a good idea of the "why", I work with Product and Engineering teams to come up with designs that both work and can actually get built.
Prototype & Test
This occurs constantly throughout the process. Whenever possible, I try to get end user testing and validation early and often to catch missteps before they become costly.