The idea comes first. Something brilliant, that bugs at you until you DO something about it. (UX at this stage will involve people responding to this idea, is it something they even want? What is closest to it? How is this different? How can you iterate before you even begin?) Then there is the planning. Laying out a skeleton and working your way through it. Revise and rework. (In software, this stage may be Agile, built 2 weeks at a time.) The final draft, the final blueprint. Now you have to build it. Program it, cast it, hopefully you'll have enough money to see it to birth. A real prototype of what you want it to be. You can test it out on people before its actual release, the UX testing is equivalent to bringing in your directing mentor for the final dress. "Tell me its fatal flaws before we open!!" Then finally, its on its feet. Opening night, the day everything goes live. Maybe its an MVP, Minimum Viable Product. 2 weeks of previews, features add
UX, CX & What Your Audience is Really Seeing