If you google “progressive disclosure,” you’ll get hits that describe the phrase as an interaction design technique. UI folks have long recognized that it’s better to show a simple set of options, and allow users to drill into greater detail only when they need it. (Thanks to James Russell–a brilliant UI designer–for teaching me PD years ago.)
But calling progressive disclosure a “technique” is, I think, a serious understatement. Progressive disclosure aligns with a profound cognitive principle, and its use is (and should be) pervasive, if you have eyes to see.
Here’s my best attempt to distill the operative rule behind progressive disclosure:
In other words, begin by addressing fundamentals without cluttering detail. When more detail is needed, find the next appropriate state, and move there. Repeat as appropriate.
Stated that way, perhaps you’ll see the pattern of progressive disclosure in lots of unexpected places. I’ve listed a few that occur to me…
The scientific method is an iterative process in which hypotheses gradually align to increasingly detailed observation. We learn by progressive disclosure.
Good conversationalists don’t gush forever on a topic. They throw out an observation or a tidbit, and wait to see if others are interested. If yes, they offer more info.
The development of a complex organism from a one-celled zygote, through differentiation and all subsequent phases, into adulthood, could be considered a progressive disclosure of the patterns embedded in its DNA. The recursive incorporation of the golden mean in many morphologies is another tie to biology.
In journalism, the inverted pyramid approach to storytelling is a form of progressive disclosure. So are headlines.
Depending on how you’re reading this post, you might see a “Read more…” link that I’ve inserted right after this paragraph. Making below-the-fold reading optional is progressive disclosure at work. TLDR…