The blind person who tries to make an online purchase. The young girl who cannot speak due to a cognitive disability. The man confined to his home due to permanent injury. The single mother with a long-term illness who struggles to feed her family.

With one in seven people worldwide currently living with a disability, the term "outcast" covers numerous scenarios. Digital outcasts rely on technology for everyday services that many people take for granted. However, poorly designed products risk alienating this important (and growing) population.

Through a "grass roots" approach...