PROTOTYPE FORMS

EXPLANATORY

Explainer video Create a catchy and concise video explaining your idea.

Talking sketch Use graphics to make complex ideas quickly understandable.

Artist sketch Realistic drawing or Computer Generate Image.

Roleplay Act out your idea in front of an audience or camera.

Storyboard Describe how the user interacts with your idea.

Scale model Show form, arrangement and working at a smaller scale.

Virtual/augmented reality Use projections or VR goggles for an immersive experience.

Step 2: What prototype form do you need? PROTOTYPE FORMS

Product hack Make adjustments to an existing product.

Foam model Express a general form using foam, clay or other materials.

Operational model Performs desired functionalities for usability testing.

Appearance model Accurate physical representation of product appearance.

Wizard of Oz Interact with a prototype operated by a hidden person.

3D-printed model Computer generated design with a realistic touch.

Alpha-Beta prototypes Refined evolution combining appearance and functionality.

Pre-production prototype Manufacture small volumes prior to full production.

EXPERIENTAL People need to interact with the prototype to reveal latent insights

The prototype can be detailed and accurate

Napkin sketch Quickly get your thoughts on paper using simple line work.

HIGH DEFINITION

The prototype cannot be that accurate yet

LOW DEFINITION

People can share insights after showing them the prototype

Napkin sketch Overview of parameters for improvement of small fish farmers produce for project stakeholder discussion (PROOFS).

Explainer video Explaining the business case of hydro-irrigation to funders (aQysta).

Talking sketch Design iteration for product service ecosystem for toilet bag collection services (TU Delft, PeePoo).

Artist sketch Computer generated image of a water filter placed on a photo to check with potential users (TU Delft).

Roleplay Performing the interaction between a solar light vendor and customer to test value propositions (IBA).

Storyboard Telling the story of a product demo workshop for rural households in Tanzania (BOMBA).

Scale model Evaluating the floorplan for a toilet facility with Indian slum dwellers (TU Delft).

Virtual/augmented reality Showing a 360° video of a future household to project stakeholders (BoPInc).

Description of examples given on previous page

Product hack Adapting a salad spinner to test the concept of a sanitary napkin dryer in India (TU Delft).

Foam model Experimenting with different forms for a wearable health monitoring device (TU Delft).

Operational model Usability testing of a solar powered milk chiller with Ethiopian farmers (Mueller).

Appearance model Evaluating the artwork of a new food product with Ethiopian customers (Guts Agro).

Wizard of Oz Manually operating the toilet water supply to test desired water quantities with Indian slum dwellers (TU Delft).

3D-printed model Rapidly iterating on the design of a solar lamp casing with a 3D printer (Rural Spark).

Alpha & Beta prototype Testing a bicycle for street vendors first produced at a local workshop (Guts Agro).

Pre-production prototype Assessing quality of local manufacturing for a solar light (Kamworks).