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Related Experiment Video

Updated: May 18, 2026

Practical Methodology of Cognitive Tasks Within a Navigational Assessment

Practical Methodology of Cognitive Tasks Within a Navigational Assessment

Published on: June 1, 2015

Building an ontology for assistive technology using the Delphi method.

Alexandra Danial-Saad¹, Tsvi Kuflik, Patrice L Tamar Weiss

¹Department of Occupational Therapy, Faculty of Social Welfare and Health Sciences, the University of Haifa, Haifa, Israel.

Disability and Rehabilitation. Assistive Technology

|October 3, 2012

Summary

This study developed a validated ontology for physically controllable pointing devices using the Delphi method. The resulting assistive technology (AT) framework enhances standardization and knowledge sharing for clinicians.

Related Experiment Videos

Last Updated: May 18, 2026

Practical Methodology of Cognitive Tasks Within a Navigational Assessment

Practical Methodology of Cognitive Tasks Within a Navigational Assessment

Published on: June 1, 2015

Area of Science:

Rehabilitation Engineering
Human-Computer Interaction
Ontology Development

Background:

Assistive technology (AT) prescription requires systematic approaches for effective device matching.
Physically controllable pointing devices are a critical class of AT, yet standardization is lacking.
Existing AT knowledge is fragmented, hindering efficient clinical decision-making.

Purpose of the Study:

To develop and validate a comprehensive ontology for physically controllable pointing devices.
To establish a standardized framework for AT classification and prescription.
To improve the matching of assistive technology to individuals with special needs.

Main Methods:

The Delphi method, a multi-round expert consensus technique, was employed.
Six occupational therapists with AT expertise participated in three structured questionnaire rounds.
Interrater reliability was assessed using the intraclass correlation coefficient (ICC).

Main Results:

Initial ICC values improved significantly across Delphi rounds, indicating increasing reliability.
Round 1 ICC ranged from 0.19 to 0.97; Round 2 ICC ranged from 0.72 to 1.0.
Final consensus yielded an ontology with 218 items (5 categories) for pointing devices and 168 items (6 categories) for user profiles.

Conclusions:

The developed ontology provides a structured framework for physically controllable pointing devices.
This standardized ontology is expected to enhance knowledge sharing and clinical competence in AT.
The research aims to contribute to systematic regulation and standardization within the AT field.