Empty State
The interface state a user sees when there's temporarily no data to display — just signed up, a list got cleared, a search returned nothing. Despite being called 'empty,' this screen shouldn't actually be blank — it's an important moment for product education and guiding the user toward their next step.
beginner
Progressive Disclosure
Showing only what a user genuinely needs right now, and deferring advanced or rarely-used options until the user actively asks for them — avoiding dumping everything on screen at once, which makes people want to give up at first glance.
beginner
Prototype Fidelity
How closely a prototype visually and behaviorally resembles the finished product — fidelity isn't "higher is always better," it needs to match the question being asked at that stage, and going too polished too early tends to derail the conversation.
advanced
Visual Hierarchy
The use of size, color, spacing, and other visual cues to let a reader instantly tell which piece of information matters most and where to look first, rather than every element looking equally important with no clear entry point.
beginner