Design Thinking Process

A human-centered framework for solving fuzzy problems. Not a linear sequence — a set of modes you move between as you learn.

"Design thinking is a human-centered approach to innovation that draws from the designer's toolkit to integrate the needs of people, the possibilities of technology, and the requirements for business success." — Tim Brown, IDEO

The 5 Phases

1. Empathize — Understand the Human Need

Goal: Deep, emotional understanding of users' context, needs, and pain points.

Activities:

• User interviews (open-ended, 5-8 per segment)
• Contextual inquiry (observe in their environment)
• Diary studies (longitudinal, self-reported)
• Competitive analysis (how are they solving this now?)

Artifacts:

• Empathy map (Says, Thinks, Does, Feels)
• User personas (behavioral, not demographic)
• Journey map (current state, pain points highlighted)

Key technique — The 5 Whys: When you hear an interesting answer, ask "Why?" up to 5 times to get to the root cause.

"I don't use the reporting feature." → Why? → "It's too slow." → Why? → "I have to export to Excel first." → Why? → "The filters don't have what I need." → Root cause: Missing filter options.

2. Define — Frame the Problem

Goal: A clear, actionable problem statement that guides ideation.

Activities:

• Synthesize interview findings (affinity mapping)
• Identify patterns and themes
• Reframe problems as opportunities

Artifact — Point of View (POV) statement:

[User] needs to [need] because [insight]

Example: "Small business owners need to reconcile invoices quickly because they spend 3 hours every Friday on bookkeeping instead of serving customers."

Key technique — "How Might We" (HMW): Turn problems into opportunities:

• "Users can't find settings" → "HMW make settings discoverable without cluttering the interface?"
• "The checkout is too long" → "HMW complete checkout in under 30 seconds?"

3. Ideate — Generate Many Solutions

Goal: Maximum quantity of ideas. Quality comes later.

Activities:

• Brainstorming (structured, time-boxed)
• Crazy Eights (8 sketches in 8 minutes)
• SCAMPER checklist (Substitute, Combine, Adapt, Modify, Put to another use, Eliminate, Reverse)
• Worst Possible Idea (reverse brainstorming to unlock creativity)

Rules:

• Defer judgment — no "that won't work" during ideation
• Build on others' ideas — "Yes, and..."
• Go for quantity — 100 ideas is better than 10
• Encourage wild ideas — they often spark practical ones

Artifact: Idea board with 20-50 ideas, grouped by theme.

4. Prototype — Make Ideas Tangible

Goal: Cheap, fast representations of the best ideas to test assumptions.

Fidelity Spectrum:

Prototype only what you need to test. If testing navigation, don't polish visuals. If testing visual appeal, focus on look and feel.

5. Test — Learn from Real Users

Goal: Validate assumptions, find usability issues, refine understanding.

Structure:

1. Welcome (2 min) — build rapport, set expectations
2. Context questions (5 min) — understand their background
3. Tasks (20-30 min) — observe without helping
4. Debrief (5 min) — overall impressions

Key Rules:

• Test with 5 users — catches ~85% of usability issues (Nielsen)
• Don't defend your design — listen
• Look for patterns, not isolated issues
• One person struggling = noise; three people struggling = signal

Integration with Agile

Facilitation Tips

• Time-box everything — constraints drive creativity
• Include diverse perspectives — engineering, design, product, support
• Visualize everything — sticky notes, whiteboards, sketches
• No laptops/phones — full presence during workshops
• Vote with dots — silent, democratic prioritization

Reference Map

• references/phase-tools-artifacts.md — tools, exit artifacts, fidelity, Agile shape
• references/hmw-and-pov.md — POV quality checks, HMW rules, 5 Whys bridge

Related Skills

• For user research methods detail → use user-research-methods
• For workshop facilitation → use this skill with user-research-methods
• For prototyping tools → use interaction-design-patterns