Design process and design thinking - Design Technology IB Study Notes

Design Process is a systematic, iterative approach to solving problems through creative and analytical thinking. The Cambridge IB Design Technology syllabus emphasizes several established models:

Linear Design Process follows sequential stages: research → ideation → development → prototyping → testing → evaluation. Though rarely used in pure form, it provides foundational understanding.

Iterative Design Process involves cyclical stages where designers continuously loop back, refining solutions based on feedback. This reflects real-world practice more accurately.

Design Thinking is a human-centered methodology pioneered by IDEO and Stanford d.school, comprising five key phases:

1. Empathize: Understanding user needs through observation, interviews, and immersion
2. Define: Synthesizing research to articulate the core problem statement
3. Ideate: Generating diverse solutions through brainstorming and creative techniques
4. Prototype: Creating tangible representations to explore solutions
5. Test: Gathering user feedback to refine iterations

Key Terminology:

• Divergent Thinking: Exploring multiple possible solutions (widening options)
• Convergent Thinking: Narrowing to optimal solutions (selecting best options)
• User-Centered Design (UCD): Placing end-users at the heart of design decisions
• Iteration: Repeated cycles of prototyping, testing, and refinement

Cambridge Note: The syllabus expects students to compare different design processes and justify which is most appropriate for specific contexts.

Design Fixation occurs when designers prematurely commit to one solution, limiting innovation. The antidote is maintaining openness throughout the process and deliberately practicing divergent thinking before convergence.

Think of the design process like cooking a new recipe. You don't simply throw ingredients together; you taste, adjust seasoning, and refine. Similarly, designers iterate continuously rather than following a rigid path.

Real-World Application: Dyson Vacuum Development

James Dyson created 5,127 prototypes over 15 years before perfecting his bagless vacuum. This exemplifies:

• Iteration: Each prototype informed the next
• Testing: Continuous user feedback drove improvements
• Empathy: Understanding user frustration with traditional vacuums losing suction

IDEO Shopping Cart Redesign demonstrates design thinking brilliance:

Empathize: Teams observed shoppers, noting child safety concerns, maneuverability issues, and shopping behavior patterns

Define: "How might we create a safer, more efficient shopping experience?"

Ideate: Generated 100+ concepts through rapid brainstorming

Prototype: Built functional prototypes using found materials in days, not months

Test: Gathered immediate user feedback in stores

Result: Modular cart system with swappable baskets, improved child seating, and enhanced scanner integration.

Medical Device Example: The insulin pen emerged from observing diabetics' daily struggles. Designers empathized with emotional and physical challenges, moving beyond clinical requirements to create discreet, user-friendly devices that dramatically improved patient compliance.

Analogy: Design thinking is like jazz improvisation—you need foundational structure (musical theory/design principles) but must respond fluidly to what's happening in the moment (user needs/feedback). The best solutions emerge from this dynamic interplay, not rigid adherence to predetermined plans.

Cambridge examiners value contextual application—always connect theoretical knowledge to specific design scenarios.