Minimizing user input

Lots of people are hesitant to fill out forms, especially when they're long, filled with personal information involving them having to search through physical documents, and filled with required steps that seem irrelevant.

Knowing this, we have an obligation to create a good form for our users so that they won't feel like it's a chore when completing it. The primary goal of any form is completion. For that, we'll first have to know what the primary concepts of an effective form are. These are covered here:

• Perception of complexity: Every time we're presented with a form, the first thing we're doing is visually scanning it so that we can estimate how much time is required to get to the finish line. Knowing this, we can pretty much instantly realize that perception of complexity plays a crucial role in finishing a form. The more complex it looks, the less likely it is that users are actually going to complete it.
• Interaction...