Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Long Tail(also: Long-tail Distribution, Long-tail Participation)
- A statistical distribution in which a small number of items or participants account for the majority of the total, while a very long list of lower-frequency items collectively make up the remainder. The term was popularised by Chris Anderson in reference to online retail, but it…
- Pareto Principle(also: 80/20 Rule, Law of the Vital Few)
- The empirical observation, named after economist Vilfredo Pareto, that in many systems roughly 80% of effects come from 20% of causes. In crowdsourcing and volunteer communities, the principle predicts that a small number of top contributors produce the majority of output, while…
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