There is now a considerable amount of research related to varied issues of vocabulary selection for augmented communicators.
Core vocabularies carry little information but much meaning.
They also provide a framework or add clarity and elegance to language. Core vocabularies also show a high degree of commonality across users. However, the knowledge of the clear distinction between core and fringe vocabulary and an understanding of their relative roles are not enough in themselves to ensure that augmented communicators have access to adequate vocabulary to meet their communication needs. Training has to be developed to show augmentative communication system operators how to optimize their core vocabularies to facilitate communication across all environments. It is clear that having access to a wide vocabulary does not ensure that the augmented communicator can use language appropriately, nor is it practical to consult lists of thousands of words in an attempt to select a meaningful vocabulary for an individual.