My name is Bartosz Brzostek, I am a project manager in charge of Odium, I also do a little programming stuff.
Many people read the designer's diary in order to know how the games are done.
Let me give you an example. We want to show the world our first Odium monster, let's say we prepare it for E3. Graphic artist sketches the creature, then 3D modeller makes a polygonal model and animations. Another person, 2D graphic artist, paints the textures. Then the monster goes to the programmers, who check if their 3D code is able to display it correctly.