10 An Approximation Simulator for Designing and Developing Accessible Java Swing Applications

Dr. Dimitrios Tzovaras Informatics and Telematics Institute Centre for Research and Technology Hellas Greece An Approximation Simulator for Designing and Developing Accessible Java Swing Applications

Introduction
Implemented Impairments
Approximation Simulator
Conclusions and future work
Demo
Overview

ICT based products are used by older people or people with disabilities
Non-accessible software applications cause productivity losses
Lack of accessibility support tools for developers lead to non fully usable applications by design
Introduction

Tools for Web accessibility assessment
aDesigner
Color Doctor
Visual Impairment Simulator for Microsoft Windows
Vischeck
WebAIM low vision simulator
Cambridge University vision impairment simulator
Tools for Java Swing accessibility assessment
Sun Java Accessibility Utilities
Sun Java Accessibility Helper
Introduction

Existing development tools give little assistance or make it impossible to design and develop accessible ICT Java solutions
Approximation Simulator can be used for achieving accessibility design for developing Java Swing applications
Introduction

The tool approximately simulates the difficulties someone with vision or other disabilities face when interacting with Java Swing Graphical User Interfaces (GUIs)
Through the tool the developer is alerted for any accessibility errors/warnings the implemented GUI may have
Introduction

Cataract
Affecting approximately 18 million of the world population
Macular degeneration
Affecting approximately 9% of the world population
Glaucoma
Affecting approximately 10% of the world population

Uncorrected refractive errors
Affecting approximately 153 million world-widely
Night blindness
Affecting approximately 1% of preschool-age children and 8% of pregnant women world-widely
Color blindness
Affecting approximately 8.5% of male and 0.5% of female of the world population

Retinitis pigmentosa
Parkinson’s disease
Extreme light sensitivity

The tool gives useful information on any GUI component with possible accessibility problems
The tool inherits the Look and Feel (L&F) that was set to the application by the developer
The tool can adapt to the high contrast appearance scheme as well as the mouse pointer scheme set by the developer

Windows L&F, “High contrast white”, “Windows Standard (extra large)”

Two Netbeans IDE plugins have been implemented as an extension of the approximation simulator
DIAS Preview plugin
provides a visual design preview feature that allows developers and designers to realize how their implemented GUI forms are being displayed
presents all the detected accessibility errors and warnings of the simulated GUI form
presents appropriate description of the potential problems as well as specific guidelines and recommendations on how to solve the detected problems
DIAS Run plugin
gives the ability to execute and run in real time a Java Swing applications and verify if the included functionalities and components contain any accessibility constraint

The approximation simulator would assist developers, throughout the phases of the whole development process, in creating accessible Java Swing GUI applications
Improve approximation simulator capabilities
Enhance the simulation outcome
Support more impairments
Cover more impairments with information and recommendations about problematic GUI components
Conclusions and future work

10 An Approximation Simulator for Designing and Developing Accessible Java Swing Applications

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