Felton says the main lesson he learned from the experience of designing and iterating Timeline is that “Photoshop lies.” “You can come into a meeting with a very beautiful comp and it’s like, ‘Oh yes, we should do it that way,’” he says. “But you’re never going to know if you can do it that way until you pump in the real data and live with it for days or weeks.”
To make sure they got it right, Facebook released Timeline to its own employees during the development process, to make sure that the paradigms they were developing worked for all users, those with a ton of status updates, for example, as well as those with just a few.
“As a designer, you have your baby that you want to try and sell. To make it saleable, you might pick someone who has really nice photos in their profile and use that to make your mockups,” Felton says. “But you’re ultimately just lying to yourself and the rest of the group if you think everyone’s page is going to look like that.”