3. CAT model
The Comprehensive Assistive Technology (CAT) model was developed to provide common terminology and definitions within a unique, unified framework for defining, describing, specifying, developing, and evaluating assistive technology solutions.
The model has a hierarchical structure based on four components: Person, Context, Activities, and Assistive Technology. It is person-centred and represents an individual or a specific group who uses assistive technology to perform particular activities within a given context.
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