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Symbolic Vocabularies for Communication: A review

How are symbolic vocabularies described and analysed how do we choose between them? This presentation investigates...
by

Simon Judge

on 20 March 2014

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Transcript of Symbolic Vocabularies for Communication: A review

A Review
Symbolic Vocabularies for Communication Aids
Simon Judge
Barnsley AT Team
Sheffield University
VOCA Paradigms
? Third Generation
‘Dedicated’ devices – based on microprocessors, fixed keyboards
First Generation
Second Generation
‘Dedicated’ devices – based on PC devices, locked OS.
‘Dedicated’ devices – based on PC devices, locked OS.
PC based 'dedicated' devices (OS exposed)
PC based devices
PC based devices
Mobile Application based devices
Not a lot!?
What is different about apps (for AAC)?
Delivery mechanism
Devices
Development mechanism
Are there new AAC features?
What are the benefits?
185 apps on www.apps4aac.net
Apps
Review of 'symbolic apps' (n=168->n=81)
89% (72) were characterised as ‘talking photo albums’
11% (9) could be considered to be structured symbolic vocabularies
7 text apps (with word prediction)
Yes, but these tend to be isolated…
Interesting features?
Configuration over-air
Location based services
History/recency
Vocabulary management
Non duplication of vocabulary
Rule based grammar
Business Model
'Occassional' AAC users
What's exciting?
Risk of loosing AAC features in the rush
Where do we need to be careful?
Secondary devices (but - so far, no real sync)
Some novel features (if they get into more complete packages)
Access options - designed for (multi) touch
Devices - weight, batteries, volume...
Devices - weight, batteries, volume...
Real keyguards
Some structured vocabs emerging
'Traditional' companies responding
Integration options
Structured vocabularies
'Traditional' AAC users?
Pricing developers out of the market
(Price)
(Services Offered)
BACKGROUND
RESULTS
STUDY
Decision Making
Concentration on device, not contents?
How are devices sold?
How described?
DEVICE:
SOFTWARE:
VOCAB PACKAGE
Device: Software: Package: LANGUAGE?
DISCUSSION
Manage language, not cells.
GRIDS
Symbolic Vocabularies
Taken our eye off the ball?
How are they bought?
What are the features?
1. Scoping
Small (Pilot?) Study
2. Characterisation
3. Analysis (Metrics)
Method
Systematic
UK Market survey
Suppliers
Devices
'Apps'
Structured Vocabularies
Heuristic Evaluation
Test Sentences
(examine structure, not for metrics)
Programmatic Analysis of Vocab XML
Test Sentences
(but not systematically)
12% (18) used a recognised symbol system
VOCA Device Types
Device:
Software:
Package

Restricted
Un-restricted
Mobile Applications
(OS)
1
2
3
Overlay Devices
4
Vocab Package Types
Categoricaly Organised
Combining with emerging literacy
Mainly Words
Orientated around sentence components
Conceptual Organised
?Really conceptual?
1
2
3
Characteristics (Features?)
Processing
Processing Method
Automation Method
Method
Order
Layout and Grouping
Grammar
Navigation
Vocabulary
Types
Units
Metrics
Total words
Total pages
Numbers of
Grid size per page
Consistent grid size?
Cells per page
Unique Words
Unique Phrases
Duplicates
Words:'Phrases'
Types of word
Could do:
Core:Fringe
Information depth
Duplication of words
Inconsistencies
(Even in the consistent ones!)
What did this tell us?
High duplication rate
Massive variation in word:phrase ratios
Massive noun dominance
Testing against sentences (programaticly)
prezi.com/user/simonjudge/
www.barnsleyhospital.nhs.uk/at/
Minspeak
Beeline
Layouts
Categories
Logic
Big fat Caveats
Provisional data
Out of context
Not for stats
of implementaiton
Most apps don't have structured vocabularies
Risk of loosing 30 years of work in rush for apps.
Verb-Subject agreement
Verb tensing
Pronoun casing
Pluralisation
Auxiliary verb modification
Conjugations
Lookup table
Pre-defined
Rule based
Concept based
Automatic
Manual
Consistency
Key press
Navigation
Key Combination
Topical/Categorical
Syntactical
Conceptual
Alphabetical
Idiosyncratic
Core
Fringe
Prediction
Topical
Personal(ised)
Words
Sentence components
Phrases
Things 'missing'...
Dynamic screen?
Decision Making?
Cult of celebrity
No consistency in description
Personalisable?
Symbol sets
Devices for Dignity
Full transcript