Monday, June 2, 2008

Assistive technology for the disabled

Disablement, needless to say, significantly reduces the life quality of a person as it substantially diminishes their work ability. Assistive or adaptive technology, however, can bring back the individual's employability at an acceptable level. Unfortunately, most people, even the disabled themselves, in the third world countries are not aware that assistive technology may become their real friend in assisting them in everyday life. I would like to highlight in this article some assistive technologies for different types of disabilities; before that it is worth mentioning what an assistive technology means.There is no specific definition of Assistive Technology (AT). It simply denotes any item, piece of equipment, or system that is used to increase, maintain or improve functional capabilities of individuals with disabilities.The definition does not necessarily imply that AT must include computers, or that it must be expensive, or that certain medical professionals can only prescribe it. This definition permits AT to be restricted by your own creativity and imagination.The followings represent samples of the many types of AT, grouped by the nature of a user's disability, that are available.AT for visual impairmentsVisually impaired users face a great challenge when interacting with graphical user interfaces. Typically, they use software applications known as screen readers that turn the texts, events, and elements in applications and websites into synthesised speech. For example, when a user opens a new window in Microsoft Internet Explorer, a screen reader such as JAWS (Job Access with Speech) or Home Page Reader might say "new browser window".A physically challenged person, I took part in a specialised training program last year, where 19 other physically challenged people also participated. Of them, 12 were visually challenged. I observed with sheer astonishment how my visually impaired friends worked smoothly on computer using screen reader software like JAWS or FSB reader. They used special key combinations to move around screen in order to direct the screen what to read. By listening to this speech, they were able to understand a screen's content.Another AT for the visually challenged is refreshable Braille display, which may be used as an alternative to screen reader. These devices convert screen text into Braille and display the Braille on a number of cells comprised of independently controlled pins. When editing and reviewing text, refreshable Braille displays can be much better to work with because a vision-impaired user can easily reread characters on the same line and check spelling. Screen readers are capable of reading words character by character, but the process of moving backwards in text to review and then moving forwards can be cumbersome. Despite their potential advantage, refreshable Braille displays are less common due to their higher cost.In addition, a Braille embosser converts computer-generated text into embossed Braille output. Braille translation programs convert text scanned in or generated via standard word processing programs into Braille, which can be printed on the embosser. The results on thick paper are the individual dots that constitute Braille characters. However, choice of appropriate hardware and software will depend on the user's level of functional vision. Put another way, it relies on the intensity of impairment. For example, low-vision users can use hardware such as large monitors, adjustable task lamp, Copyholder, closed circuit television, modified cassette recorder, and scanner to improve visibility. Moreover, this can be helpful to people who have difficulty reading or seeing self-voicing applications such as talking web browsers. AT for the hearing challengedAlthough hearing impaired individuals encounter less accessibility than the visually challenged do, they face tremendous difficulty in terms of learning, job access and social inclusion. These are due to the traditional way of learning. However, computer technology has emerged as blessing to the hearing impaired. As computer prompts such as spoken messages and beeps can be misunderstood or go unnoticed by hearing impaired individuals, this problem is solved through the use of tools that produce visual warning when the system plays a sound and/or display captions in place of a spoken message. Light signaller alerts the computer with light signals. This is useful when a computer user cannot hear computer sounds. As an example, a light can flash alerting the user when a new e-mail message has arrived or a computer command has completed.In addition, hearing impaired person can use TTY/TDD (Telecommunication Device for the Deaf), which is an electronic device for text communication via a telephone line, telecare, closed captioning, teletext and multimedia projector to address accessibility problem. Moreover, newer text-based communication methods such as short message service (SMS), internet relay chat (IRC) and instant messaging have also been accepted by the deaf as an alternative or adjunct to TDD.AT for mobility impairmentsMobility impairment refers to any condition that limits an individual's ability to navigate through their environment. Mobility assistive technology products and services for the physically challenged are used to ensure freedom of movement around the home or office. For example, persons with mobility impairment can use wheelchair or electric wheelchair to overcome challenges to daily activities. A permanent or portable ramp can also help in this regard.In addition, alternative pointing devices allow mobility-impaired individuals to control the mouse pointer via a mechanism other than the mouse. These are typically used when someone lacks dexterity to manipulate a standard mouse. Again, some software exists that converts the keyboard arrow keys into directional movements for the pointer. Other keys are used to signal a left and right mouse click. Besides, for individuals with severe impairments who are entirely unable to manipulate the mouse and/or use a standard keyboard can use HeadMouse wireless pointing device that converts the movements of a user's head into corresponding movements of the mouse pointer by tracking the motion of a single point on the user's head. A standard keyboard may be completely replaced by using this system in conjunction with software that produces an on-screen keyboard. Mobility-impaired individuals may utilise speech recognition applications. This software can be used to both control applications via speech commands and as a means to dedicate text, with speech converted into text in real time.Disability is not inability; rather, it is a blessing in disguise. If the disabled get some opportunity, they can also prove their potential in the real field. As evidenced by the above descriptions, assistive technology services address a variety of disabilities in numerous ways. Regretfully, technology, created without regard to people with disabilities, often creates undesired hindrances to hundreds of millions of people. We should know that assistive technology, or more specifically universally acceptable technology, equally yields great rewards for the typical users. One example is the kerb cuts in the sidewalk at street crossing. While these kerb cuts enable pedestrians with mobility impairments to cross the street, these also aid parents with carriages and strollers, shoppers with carts, and travellers and workers with pull-type bags.And here in Bangladesh, though the availability of disabled friendly or assistive technology is alarmingly low, YPSA -- a specialised non-profit social development organisation -- is doing some exciting work in this respect. As a result, the organisation has been selected by DAISY (Digital Accessible Information System) Consortium, to ensure information in accessible format for people with disabilities (PWDs), especially for the print disabled. We sincerely hope that other organisations would follow YPSA's effort in this regard to make the PWDs lives somewhat easy and enjoyable.
Author: Farooque Hossain Kamrul
(The author, a physically challenged person, is a trainee at Thakral Information Systems Pvt Ltd, Dhaka.) Source: The Dailystar 2008-01-26

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Assistive Technology News

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Thursday, May 22, 2008

ICT For Enabling People With Disabilities

Access to information is one among the basic human rights for all. Information and Communication Technology (ICT) is an important driving force for modern development. With the advancement of (ICT), one can live in the global village irrespective of distance, national and international boundaries. The term Information and Communication Technology (ICT) springs from the convergence of telecommunication, computing and broadcasting through the use of digital information. It covers any products that will store, retrieve, manipulate, transmit and receive information electronically in a digital form. Information and Communication Technology (ICT) encompasses the broad fields of information and communications by means of computer and telecommunication tools are being increasingly used for information processing in all sectors of development. ICT is of course an enabling technology and we should not loose sight of this fact. If it is not properly planed, managed and implemented it might put us into social gaps or to the `Digital Divide'.

People with disabilities in Bangladesh have already been lagging far behind the mainstream development as well as of our socio-economic and cultural activities. Hence, ICT can be a significant means of bridging this gap. It is strongly felt that none of us should be left out in isolation in this highly competitive, useful and exciting digital world. And this is why ICT accessibility is very important to all of us, especially, the people with disabilities. Persons with disabilities are an inevitable part of the society and more than 10 percent of our total population is comprised of them. And still they are considered as a burden and liability to the family as well as to the community. If we cannot integrate these large number disabled persons into the mainstream development of the nation our national development would be belated.

Information and Communication Technology (ICT) is one of the most important and vital field intervention through which the disabled persons could be successfully integrated into different faculties of development it can immensely benefit people with disability and community as well of the community. ICT is of course an enabling technology and we should not loose sight of this fact. It is strongly felt that none of us should be left out in isolation in this highly useful and challenging digital world. And this is why ICT accessibility has become important to all of us, especially, the people with disabilities. As we know persons with disabilities in Bangladesh have already been lagging far behind the mainstream development because of their disability as well as of our socio-economic and cultural realities. Hence, ICT can be a significant means of bridging this gap. ICT can be resembled as a magic stick to bringing our people with disabilities to leap-frog if utilized in a coordinated, planned and appropriate manner.

In order to create optimum ICT accessibility for our people with disabilities, a well-coordinated and collaborative effort is inevitable. Recognizing that access to information is a basic human right, United Nations Economic and Social Commission (UNESCAP) in the Asian and Pacific region convened a seminar in June, 2002 with an aim to draw, “Recommendations on Policy/Legislative Guidelines concerning Information and Communication Technology (ICT) accessibility for Persons with Disabilities in the Asian and Pacific Region.” 73 participants including 13 resource persons from Japan, Sweden, Thailand, Bangladesh, Cambodia, Vietnam, India, Philippines, Myanmar, Indonesia, Malaysia, Australia, Hong Kong and USA attended the seminar at different levels. I had my opportunity to participate the seminar as only representative from Bangladesh. To address the digital divide faced by persons with disabilities in the Asian and Pacific region and to promote the digital opportunities of persons with disabilities, the participants in the seminar have adopted a set of recommendations including the definitions of "Persons with Disabilities", "Information and Communication Technology (ICT) “and "Accessibility".

According to the recommendations "Persons with Disabilities" means the persons who have limited access to and usage of information and communications technology due to their visual, auditory, physical, cognitive/intellectual, neurological, psychiatric or other types of disabilities, "Information and Communication Technology" (ICT) means all digital as well as analog technology and services that supports human communication, creation, collection and dissemination of knowledge, and other activities for manipulation of information and, "Accessibility" means the measure or condition of things and services that can readily be reached or used (at the physical, visual, auditory and/or cognitive levels) by people including those with disabilities, which could be achieved through design and/or adaptation irrespective of any types of disabilities. The recommendations of the seminar have a clear bearing on the Biwako Millennium Framework for Action towards an Inclusive, Barrier-Free and Rights-Based Society for Persons with Disabilities in Asia and the Pacific (2002 –2013).
A Complete Bangla version of BMF has been published and disseminated by Association for the Welfare of the Disabled People (AWDP) in Bangladesh (http://awdpbd.blogspot.com).

By resolution 58/4, Governments in the region defined the 7 priority policy areas of action, which, inter alia, includes access to information and communications, including information, communications and assistive technologies. The five targets set out in the Biwako Millennium Framework under the priority area ICTs are: § By 2005, persons with disabilities should have at least the same rate of access to the Internet and related services as the rest of the citizens in a country of the region. § International organizations (e.g. International Telecommunication Union, International Organization for Standardization, World Trade Organization, World Wide Web Consortium, Motion Picture Engineering Group) responsible for international ICT standards should, by 2004, incorporate accessibility standards for persons with disabilities in their international ICT standards.

§ Governments should adopt, by 2005, ICT accessibility guidelines for persons with disabilities in their national ICT policies and specifically include persons with disabilities as their target beneficiary group with appropriate measures.

§ Governments should develop and coordinate a standardized sign language, finger Braille, tactile sign language, in each country and to disseminate and teach the results through all means, i.e. publications, CD-ROMs, etc.

§ Governments should establish a system in each country to train and dispatch sign language interpreters, Braille transcribers, finger Braille interpreters, and human readers and encourage their employment. From an international perspective, the importance of information and communication technologies (ICT) for development has been considered at the highest level. For example, in the United Nations "Millennium Declaration" (General Assembly resolution 55/2), heads of State and Government resolved, "to ensure that the benefits of new technologies, especially information and communication technologies, in conformity with recommendations contained in the ECOSOC 2000 Ministerial Declaration, are available to all". As such, reference to people with disabilities does not feature in this resolution, though its text can be applied to interpret the right of equal access to people with disabilities. The UN Standard Rules on the Equalization of Opportunities for Persons with disabilities, 1993 is the first instrument that spells out in Rule 5, that “States should recognize the overall importance of accessibility in the process of the equalization of opportunities in all spheres of society. For persons with disabilities of any kind, States should (a) introduce programmes of action to make the physical environment accessible; and (b) undertake measures to provide access to information and communication.”

Many Governments have adopted policies in the light of the Standard Rules. The UNESCAP has defined Accessibility as “the measure or condition of things and services that can readily be reached or used (at the physical, visual, auditory and/or cognitive levels) by people including those with disabilities…” joint report (e-Inclusion) by the European Commission and the High Level Group on Employment and Social Dimension of the Information Society (ESDIS), people with disabilities are very specifically referred and it is stressed that no one is excluded from the knowledge-based society and new information and communication technologies, in particular, people with disabilities.

As ICT is a global issue and the technology is changing rapidly. Therefore it is very important for us to continue to watch on the recent development and we cannot keep us apart from international development of ICT as well as extending our efforts to adopt those technologies in the country context. As such, we should have a clear understanding on the existing scenario of ICT facilities, services and practices in the country through an ICT Accessibility Study or other means. All possible efforts should be taken to make optimum utilization of our existing resources, services and facilities as well as making our audience familiar with the in-built accessibility options, (i.e. using sticky keys, filter keys, mouse keys, display contrast) adaptation and modification features of the operating systems. Efforts should be taken to design, develop and distribution of accessible ICT products like transcriber, interface, software and assistive technology products.

We should introduce universal concepts and techniques for ICT Accessibility to all categories of disabled people like visually and physically challenged, hearing and speech impaired, intellectually disabled, autistic children and others. Digital Accessible Information System (DAISY) can make a leap-frog in promoting education and learning materials for visually impaired people in Bangladesh.

In Bangladesh, books and education materials in DAISY format are getting increasing attention and interest of visually impaired students and people day by day. Unique, innovative and need oriented efforts should be taken to enhance accessibility of persons with disabilities to ICT and wider dissemination of such efforts and experiences. We should take supplementary, complementary and collaborative efforts within the ICT-related stakeholders and sectors. Efforts should be taken to make best use of the existing Policy guidelines and legislative support and tools. We have our national policy guidelines and legislation on ICT, we have national and international instruments and tools for people with disabilities where issues of the ICT accessibility have been emphasized. And, now, is the time to intervene.

As such, there is no alternative of simultaneous initiatives from the government, private sectors and the civil society sectors to bringing our vision into reality. Huge opportunities could be created for people with disabilities through the promotion of ICT accessibility for all. And ICT can play its role as a magic stick for enabling people with disabilities in Bangladesh as well as in this region.