NAF illustration

Lead paragraph

NAF, which stands for New, Appeal and Feasibility, is a tool useful for filtering ideas and decision making. Designers used it as a systematic way of assessing ideas after brainstorming and idea generation. The assessment is done by points on the three elements.

PREPARATION: up to 15 minutes
DURATION: 30-60 minutes
FACILITATORS: 1 per workshop
RESOURCES: Pens, Post-its, a large sheet of paper or whiteboard
PARTICIPANTS: Up to 30 per group, design team, partners, community members
EXPECTED OUTCOME: Filtering ideas

It is basically a simple way to score ideas to see if they are worth pursuing or implementing. It also helps designers to see what they can do to increase the probability of success when developing or implementing a service idea or concept.


State the selected “How Might We” statement or a sub-focus area of it.

Based on your HMW statement or the focus of what you are interested in, select suitable participants.

Organize a meeting with the selected participants, and prepare the results of the idea generation by printing out the full list of ideas in cards or Post-its (visual way). Gather the necessary resources and supplies. Think about what expectations will be set up-front, how you will start and end the workshop, and how much time participants are expected to dedicate to this activity.

All members of the design team and other evaluators give points to all ideas based on NAF. Give to each participant the NAF Assessment sheet, then present the scale (1-10), 10 being the highest, and the assessment criteria:

1. Newness: (to the problem holder): How new is the idea to you?
2. Appeal: How much do you like it at a gut level?
3. Feasibility: How feasible is it to put this into practice?

Calculate the points and the ideas with most points are taken further in the design process. Discuss the results and write up the key outcomes from this exercise.

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