Ux Design

1) Simplify decision-making

Users have limited mental energy; repeated choices lead to decision fatigue, and judgment quality declines.

• Minimize choices: show only the necessary options.
• Use default bias: pre-select sensible defaults to reduce effort.
• Pricing / choice architecture:
  • Anchor effect: show a higher reference point first so later prices feel more reasonable.
  • Decoy effect (asymmetric dominance): add a third “decoy” option to make a target choice feel like better value.
• Use framing: present the same facts in a way that highlights benefits or minimizes perceived losses.

2) Guide attention and manage information flow

Human cognitive capacity is limited; organization prevents cognitive load.

• Establish visual hierarchy with size, color, contrast, and position.
• Create visual anchors that pull attention to the most important element first.
• Apply progressive disclosure: hide advanced/secondary controls until needed.
• Optimize for memory (serial position effect): put critical items early and late in lists.
• Avoid banner blindness: don’t put essential actions/info where users expect ads.

3) Foster engagement and motivation

Use nudges that help users complete tasks and build habits.

• Zeigarnik effect: unfinished tasks linger; use checklists and “already completed” first steps to encourage completion.
• Goal-gradient effect: effort increases near a goal; show progress bars or step counts.
• Variable rewards: unpredictable rewards can sustain repeated engagement.
• Curiosity gap: partially hide information to encourage action to “fill the gap”.

4) Build trust and emotional connection

The emotional feel of a product affects perceived value.

• Aesthetic-usability effect: users perceive beautiful UIs as more usable and tolerate minor issues.
• Peak-end rule: users remember the peak moment and the ending; design a strong finish.
• Social proof: show credible logos, reviews, usage stats, or testimonials.
• Endowment effect (ownership): let users customize early to feel “this is mine”.

5) Optimize system performance and interaction

Performance is psychological, not just technical.

• Doherty threshold: target response times under ~0.4s; if slower, use skeleton screens and immediate feedback.
• Labor illusion: showing “work” can increase perceived value and trust in results.
• Intentional friction: add confirmations for irreversible/high-risk actions to prevent mistakes.

6) Mitigate designer/developer/research biases

Design decisions are vulnerable to cognitive bias.

• Bridge the empathy gap: don’t assume users think like builders; use data and research.
• Watch for confirmation bias: seek disconfirming evidence and diverse sources.
• Reduce survey bias: avoid leading questions and skewed samples.

Analogy (visual hierarchy + progressive disclosure)

Think of a UI like a multicourse meal:

• Visual hierarchy is the menu emphasizing chef’s specials to guide attention.
• Progressive disclosure is service timing: bring what’s needed for the current course, not everything at once.