AAC Framework: A resource to support device prescription

Trial InformationFixed static display e.g.Tech/SpeakFlexible static display e.g TobiiS32Dynamic display with digitisedvoice e.g. Dynavox M3Dynamic display with synthesisedvoice e.g. Nova Chat 7/ 11+ve•Static display may be visually easierthan dynamic•Choice of 2D symbols and colour –photos, PCS, line drawings, blackand white, high contrast etc•Devices can offer up to 32 choices+ storage in levels (2,4,6,12)•Static display – may assist to keepOliver focused as no easy access toother vocabulary•May tolerate more heavy handling+ve•Static display may be visually easierthan dynamic•SymbolMate software offersSymbolStix•Keyboard can be resized and fullyutilised with any layout•Keyboard target size will reducegradually as more optionsincorporated•Can offer 1 – 32 choices + storageon 192 levels•Static display – may assist to keepOliver focused as no easy access toother vocabulary•May tolerate more heavy handling+ve•No requirement to produce overlays•Pre-programmed vocabularyincluding visual scenes in somedevice•PCS symbol library•Independent access to newvocabulary through page linkingfeature+ve•No requirement to produce overlays•Pre-programmed vocabularyincluding visual scenes in somedevices•PCS and SymbolStix library•Independent access to newvocabulary through page linkingfeature•Synthesised output will support anyemergent literacy skills-ve•Cell size fixed•Unwanted cells will be left empty –distracting?•Need to produce symbol referents –Boardmaker?•independent access to newvocabulary may not be possible-ve•PCS symbol set not available•independent access to newvocabulary may not be possible-ve•Appearance of dynamic screen maynot suit visual needs• Independent access to vocabularymay be too complex and/ordistracting•Access – too gross for delicatetouchscreen?-ve•Appearance of dynamic screen maynot suit visual needs• Independent access to vocabularymay be too complex and/ordistracting•Access – too gross for delicatetouchscreen?Back to case studies