Understanding Design for Extremes
Definition
Design for Extremes
A design approach that ensures products work well for users at the 2.5th and 97.5th percentiles, covering the smallest to largest range of users.
- Design for extremes targets users with the greatest physical, sensory, or cognitive needs.
- Aims to accommodate the widest possible range of users.
- Ensures accessibility for those at the edges of the user spectrum.
- Often results in products that are also easier and better for the general population to use.
Design for extremes is not about creating separate solutions for different user groups. Instead, it aims to develop universal solutions that meet the needs of all users.
Types of User Limitations to Consider
- Physical
- Reduced strength, grip, reach, mobility, or dexterity
- E.g. arthritis, wheelchair use, limb difference
- Sensory
- Impaired vision, hearing, or tactile feedback
- E.g. colour blindness, partial or full sight loss, hearing loss
