Design thinking resource
A practical guide to selecting prototype forms that match the idea, question, audience and available resources.
Different questions require different representations. A paper sketch may be sufficient for layout, a storyboard for sequence, a role-play for service behaviour and a model for physical form.
The pathway should begin with what remains uncertain, not with the tool or technology the team prefers to use.
Early prototypes should remain quick and changeable. As evidence grows, the team can add fidelity, resolution and realism where these support more precise testing.
This progression prevents effort from becoming attached to details before the central proposition has been validated.
Complex ideas often span physical objects, digital touchpoints, human interaction and operational processes. One prototype may not represent every dimension.
A pathway can combine sketches, models, scenarios, interface simulations and system maps to test connected questions deliberately.
Put the method to work
Explore layout, content, form and early interaction rapidly.
Test sequence, context, touchpoints and emotional experience.
Rehearse human interaction, service behaviour and responsibilities.
Investigate scale, form, ergonomics and spatial relationships.
Represent screen interaction, information flow or system behaviour.
Examine connected roles, operations, decisions and dependencies.
Why it matters
Select the simplest form capable of answering the current question.
Match prototype format to the kind of idea and evidence required.
Change methods as questions become more detailed and interconnected.
Increase effort only when previous testing supports the next step.
Continue exploring
Place this method back within the broader 5E Design Thinking Framework and continue developing your understanding.