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Thus DIAS is actually available in two versions, one standalone and one that is used as a NetBeans plugin. During the recent years, a large number of attempts have been made, towards facilitating developers to understand accessibility limitations of their work through the simulation of impairments. An open-source effort, enabling authors to increase the accessibility of their applications, is the NetBeans Accessibility Testing Utilities, known as the NetBeans accessibility module. On the visual impairments simulators side, work has already explored accessibility of Web applications, taking also into account assistive devices. The aDesigner is mostly oriented in testing the degree of colour contrast on the page, the ability of users to change the font size and the existence of alternate text for images.
Furthermore, the Visual Impairment Simulator (VIS) for Microsoft Windows is another tool that simulates the usera€™s PC desktop. Finally Cambridge University has developed a vision and hearing impairment simulator, within the Inclusive Design Toolkit. The vision simulator modifies a digital image to show what the image might look like when viewed with a variety of different vision conditions.
Moreover, in The disability simulator: Simulating the influences of disabilities on the usability of graphical user interfaces (page 109-118), a tool for the simulation of the influences of disabilities on the usability of GUIs was presented. Trying to advance the state of art in impairment simulation systems, we have developed the DIAS, which integrates filters that enable visual, hearing and physical impairment simulation over HCI through Java, mobile and web applications. DIAS tool has been tested in pilot tests with developers and beneficiaries and several important usability issues occurred.
The updated version of DIAS has new filters that deliver more realistic and fast simulations. The updated version of DIAS has new filters that deliver more realistic simulations of impairments. In the updated version of DIAS, dyslexia simulation is functioning well over Java applications with Swing components. In the updated version of the DIAS tool, particular care has been taken to cater for reliability issues.
The DIAS tool contains now a larger set of personas than before, providing significantly more options to users for selecting personas to be simulated. Performance issues have been appropriately addressed in the updated version of the tool, whereas special care has also been taken to reduce the cases where scrolling is needed. The existing disability profiles can be adjusted through the "Details" option of each disability. The tunnel vision symptom of Glaucoma required a different filter from the one of Cataract.
It did not crash nor a deadlock occurred, but we observed that if you don't close the application properly, the simulator can get "stuck" on the JVM. Maybe a bigger (full screen) window or operating system overlay would help clarify a disability for someone without. In the updated version of DIAS, the window takes automatically the optimal size in respect of the application under assessment. Through a "demo" option, DIAS now provides users the capability to view a sequential combination of different severity levels of disabilities. Such automatic simulation capability is now provided through a "demo" option placed next to the slider that selects the different user profiles, in respect of the different disability severity levels. I would like to create personalized personas in the application so I can test it with my own profiles of users with disabilities. The tree structure has been further examined, so as to ensure it allows easy selection of impairments. No explanation what SPRING is for, no checksum provided for installer, administrative privileges required, spring blocked by firewall -- not clear if full functionality is available. Details over Macular Degeneration can be found using the "Help for Macular Degeneration" option of the DIAS simulation pane. DIAS provides for each disability some common symptom profiles (severity levels) as automated ones.
The majority of the filters require the mouse pointer to be over the application examined, so as to have a reference point for the simulation. The different choosing types were utilized so as to provide users, for each element that needed to be chosen, the optimal way to select it.
In order to identify automatically the path of the JRE, the JAVA_HOME environmental variable has to be already set in the system.
The mapping of the disabilities with the slider bar of the severity of the disability was very useful. Regarding the slider and the percentage of the disabled population, wherever literature information was available (e.g. Resizing of the application under assessment leads to immediate, appropriate resizing of the DIAS simulation pane.


Providing these options at the bottom, allows for the simulation pane to be as better aligned (in respect of its latitude) to the interaction pane as possible. The simulation window always follows the position of the interaction window, thus the two windows are practically joined. It's not practical to configure the classpath for the JRE and the emulator platform every time you start the tool.
The specific impairments that were finally selected to be addressed from the DIAS tool are Macular Degeneration, Glaucoma, Cataract, Hyperopia, Colour Vision Deficiencies, Protanomally, Deuteranomaly, Tritanomaly, Protanopia, Deuteranopia, Tritanopia, Night Blindness, Extreme Light Sensitivity, Retinitis pigmentosa , Parkinsona€™s disease, Dyslexia, Conductive hearing loss, Sensorineural hearing loss. The tool (a screenshot is being provided to the following figure) is based on a series of filters, developed on the basis of the above theoretical background, which take as input the appearance of the simulated application and provide as output the results that would have been received by an impaired end user with the supported disabilities. A path to obtain the required quality to integrate the tools in mainstream development environments (e.g.
A suite of three different plug-ins for the NetBeans platform has been developed, in order to provide users of this IDE with the DIAS impairment simulation capabilities, embedded in their development environment.
Finally, a JDeveloper plugin for DIAS is being developed while will be announced in the ACCESSIBLE project Web site. It approximately simulates the difficulties someone with specific vision, motor, cognitive and hearing impairments face, when interacting with Java Swing Graphical User Interfaces (GUIs) as well as Java ME applications.
An Open Source Tool for Simulating a Variety of Vision Impairments in Developing Swing Applications. Providing An IDE For Creating, Simulating And Assessing Accessible Applications, In 2nd International AEGIS Conference, (Brussels, Belgium, 2011). Enabling user interface developers to experience accessibility limitations through visual, hearing, cognitive and physical impairment simulation. In order to have a better view of accessibility needs, developers can use such simulation tools, so as to experience a software application (e.g. This is distributed as a separate NetBeans module, which can be installed to the NetBeans Integrated Development Environment (IDE). The aDesigner is a disability simulator that helps Web designers to ensure that their pages are accessible and usable by the visually impaired. When the program runs, it manipulates the images on the usera€™s screen, so that it seems like the user has a visual impairment. Built on the basis of the Java language, that tool incorporates visual and movement filters, allowing it to simulate impairments like hyperopia, complete colour blindness and agitated paralysis, either on their own or in combination. These filters have been developed after thorough literature research, through which basic symptoms and more specific parameters over the covered impairmentsa€™ symptoms were obtained. In the following table we outline the most important issues that were identified during the testing, and how they were addressed for the improvement of the tool. During Parkinson simulation, DIAS identifies components whose size should be increased and the user is provided with details of this by pressing on the problematic (marked with red colour) elements. Limited, yet adequate information regarding each persona (demographic info and disability) is provided as soon as each persona gets selected. In any case, the updated version of the DIAS tool has new filters both for Cataract and for Glaucoma, providing an even more optimal simulation of the specific impairments than before. For instance, if Parkinson is selected, it is jointly simulated with subsequently selected visual impairments.
Moreover, using the magnifier, the user can examine the disability symptoms in an even more detailed way. This way, the user can better understand each impairmenta€™s impact, as severity levels increase. This way I can see the simulation of different profiles of users with disabilities without having to modify the settings. However, DIAS now also provides a "demo" option, through which severity levels of a disability change automatically as the user interacts with the application, without needing to manually select disability parameters and subsequently click over the application again.
However, the consistency among the choosing options between different impairments has been further examined, so as to improve the overall consistency and usability of the tool. This alignment allows the user of the tool to understand more easily the symptoms of a disability, and how these affect the application's interface.
However, a "demo" option has been added in DIAS, allowing the automatic simulation of the different severity levels of various disabilities, so as to further facilitate users. Moreover, the joint simulation of visual and motor impairments is supported from DIAS, as well as the simulation of impairments along with the use of assistive technologies, such as screen magnifiers and screen readers.
The two out of these three plugins enable the simulation of Java applications, whereas the third one allows the simulation of web pages of sites that are developed through the NetBeans IDE. Die aufregendsten und interessantesten physikalischen erscheinungen physikalische experimente und erfahrungen Auf unserer Website finden Sie eine groAYe Anzahl der besten Sammlungen von Fotos in ausgezeichneter QualitA¤t. An Approximation Simulator for Designing and Developing Accessible Java Swing Applications, In Free and Open Source Software for Accessible Mainstream Applications (FOSS-AMA), collocated with ETAPS (European Joint Conferences on Theory and Practice of Software), (Paphos, Cyprus, 2010). The Java Accessibility Helper (provided by the installation NetBeans accessibility module) aids Java software developers in making their JFC - based programs accessible to persons with disabilities.


Web developers can use aDesigner in order to test the accessibility and usability of Web pages for low-vision and blind people. It converts any images displayed on the screen, such as websites and other presentation contents, into gray scale or colors that can be perceived by people with color blindness.
These filters are applied over the presentation of a PC screen, thus providing simulations over HCI with applications presented through it.
The translation of these parameters into realistic filters was further facilitated through experts, who provided evaluation over the filters, during the development phase. As this cannot be resolved programmatically, a manual solution is provided in the READ_ME.txt file. However, adequate information that could lead to the proper simulation of some suggested disabilities (e.g. Most developers have security obligations and admins and company policies forbidding installation. For instance if we try to simulate dyslexia or Parkinson's disease, the tool marks in red the problematic components and if we click on the marked component, specific details and hints are provided. As problems may occur when: 1) the JAVA_HOME environmental variable is not set, 2) when the system is 64-bit or 3) when many different versions of Java are installed, it is safer to set the JRE path manually. The simulation of mobile applications will be supported only by the standalone version of DIAS. The purpose of ACCESSIBLE simulator is to assist developers and designers to better empathise with those who have reduced capabilities, and to help understand how capability loss affects the ability to interact with software applications and services.
It is obvious that simulation tools cannot simulate all kinds of disabilities and cannot provide the exact impact they have. The Helper generates reports that include a prioritized list of problems and potential problems with the application being tested.
ColorDoctor not only simulates website display, it is also possible to simulate real-time display of proposals, presentations, and moving images such as Flash by selecting the a€?Transparenta€? mode. The impairments that can be simulated are: Cataract, Color Blindness, Diabetic Retinopathy, Glaucoma, Hyperopia, Macular Degeneration, Magnifier and Retinitis Pigmetosa.
An impairment simulation tool was also used in Evaluating interface layout for visually impaired and mobility-impaired users through simulation, towards evaluating digital TV interfaces. In general, our work aims to provide developers with a practical solution that could be easily adopted and utilized during the applicationsa€™ development phase.
In cases where the mapping between the disability and the properties of each interface component is not possible, just the simulation of the disability is provided. However, to make this process easier, the application has been improved and now the user has to set the JRE and emulator paths once. In Proceedings of the IEEE International Conference on Intelligent Computing and Intelligent Systems 2009, ICIS, (Shanghai, China, 2009), 368-372.
However, they certainly provide useful information and can thus help designers make the content of a UI more accessible. ColorDoctor shows the display content through four conversion filters: Grayscale, Protanopia, Deuteranopia and Tritanopia. The Vischeck tool was created, in order to help web developers check their work for color blind visibility. These tools can thus enable, encourage, and assist developers in the creation of accessible applications. Also the WebAIM Low Vision Simulator provides users with the opportunity to experience a web page as a user with visual disabilities. Moreover, two versions of the tool have been developed, a standalone one and a NetBeans plug-in suite. Limited slow moves by people with limited dexterity were not addressed, however this is also needed. As it can be discerned, users can see the specified web page as if they suffered from Macular Degeneration, Cataract or Glaucoma. The former version follows the rationale of the typical, afore-described state of art systems, which are provided as standalone applications. On the other hand, the DIAS NetBeans plug-in suite can integrate the toola€™s functionality within a development environment, commonly used for building Java - based applications. This way, the possibilities of impairment simulation to be practically embedded in the GUI development life-cycle, significantly increase.



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