Here's something you don't see everyday! I was fortunate enough to hover over the desk of our Lead Tester back in May this year to get a look at what she was up to. This, my friends, is a map. (^_^) She was checking to see if all of the scene views (as listed by numbers) matched up in the right locations. Each arrow represents a viewpoint for the player, not necessarily the ability to move forward, but the different angles you get to look (perspectives) at with each step you take in The Deadly Device.
Behind the scenes here, we have "scene numbers" for us to refer to and especially for connecting the dots, so to speak. You don't want to click to go forward towards the elevator and suddenly show up in Niko's office! So our Lead Tester checks to make sure our game navigation is correctly matching up with the logic. Can you identify these areas based on the shape and navigation view? Answer is at the bottom of this post, below my name.
Head's up! New poll on the right -- >
Map answer: [downstairs halls, the K on the left leads to the lab, the K on the bottom right is right before Niko's Office.]