“Wiki” is a generic term commonly used to describe a collaborative website which can be quickly edited. The term comes from an Hawaiian word that means “quick” and perhaps the best-known is Wikipedia.
More details about the origins of the name can be found here.
EEMUA is using this type of software to develop documents/online publications so that content can be created by a wide range of experts without losing track of changes that have been made. Completed publications are subsequently made available on a publicly available wiki or issued as conventional printed documents.