Many Stuff, a graphic design and art blog, asked a group of designers the same two questions:
When you work, do you think in terms of forms or in terms of a creation process? Do you have a clear vision of your final image or does it come only from an upstream creation process?
They answers are interesting, varied and worth reading. They have been published, along with examples of each designers work, in a large (70M) PDF file called About the Process. So, t takes a while to download and some of the answers are in French.
Here is a sample answer:
All I create is just reflexion of me and my feelings. My work is to come up to the mirror and make a copy of the picture I see! Nothing more! – Stanislav Chepurnov