Archive for the ‘accessibility’ Category

MOOCs and Carrots

Sunday, September 30th, 2012

Photo of a bunch of carrots

I’ve just started a free online Coursera course on HCI (Human-Computer Interaction). This is my first time taking an online course and I thought I’d share some of my observations on both the course and on using a MOOC (Massive Open Online Course).

The HCI course is being run by Stanford University and consists of a number of short video lectures, peer-evaluated assignments and online quizzed. There is a student forum, free access to software to help with the course, and lots of text and videos to support the general interaction with the course.

The first thing that struck me about the HCI course itself was how much it will complement my existing work as an e-learning technologist in the accessibility field, as well as there being similarities with the service design approach, which has been part of my Relationship Management work. In fact, there are quite a number of e-learning technologists on the course.

The second thing that really stood out was the wide variety of the types of people from around the world taking the course. Apart from the obvious – students taking this course as a complement to their main study and people in employment upgrading or complementing their existing skills – there are mothers with young children, housebound people, people with disabilities, people who don’t live anywhere near an educational institution that offers such a course, unemployed people, etc. These are very much non-traditional students who would be unable to attend a class in a traditional setting. Perhaps the rise in MOOCs won’t necessarily threaten the current university sector but will complement it by attracting those on the fringes of mainstream education?

There are some differences between attending an educational institution as a real student and as a virtual student. Perhaps the biggest one might be the social and collaborative aspect. If one is motivated to attend class for social reasons (e.g. seeing a different group of people, doing something outside of the normal day-to-day routine, etc), then one may be more likely to continue. However, no-one is going to notice if one hasn’t attended a virtual class! Perhaps one way to encourage attendance in online classes to offer a carrot. In the case of the HCI class, students who successfully complete the course will be awarded a “statement of accomplishment” signed by the tutor and there are grade penalties if you miss assignments or don’t take part in peer evaluation. Not all classes offer this, so it will be interesting to know whether offering a sort of certificate really makes a difference to drop-out rates. If I manage to make it to the end, I’ll let you know!

Carrots photo by vierdrie.

Accessibility of e-Textbook Readers

Friday, February 10th, 2012

Last night, I sat in on an EASI (Equal Access to Softtware and Information) webinar about the accessibility of e-textbook readers by Ken Petri from Ohio State University. It seems as though the device designers are really trying hard to get it right, although there’s still some way to go.

Photo of a paperback book.

After a short introduction to the legal context (Advocates for the Blind sued Arizona State University over their use of Kindle resulting in Amazon making changes to its software), Ken gave an overview of the current e-book formats on offer, which are mostly based on XML (eXtensible Meta-Language):

  • PDF (Portable Document Format) – common, but mostly inaccessible unless tagged correctly.
  • MOBI (Adobe).
  • AZW (Amazon) – ePub-like format for the Kindle, but lacks its rich structure.
  • XPS (XML Paper Specification) – designed to look like the original paper copy; only used by Blio.
  • DAISY (Digital Accessible Information System) – accessible standard for digital talking books; not much control over formatting.
  • ePub v3 – read by most readers (except Kindle); has a lot of DAISY’s accessibility features; rich formatting control, including video/audio embedding; full support for MathML (although no readers can read it just yet). It’s basically XHTML (eXtensible HyperText Markup Language) with super styling, i.e. CSS3 (Cascading StyleSheets) with SVG (Scalable Vector Graphics) and JavaScript.

He then followed this with an overview of e-book reader accessibility:

  • Kindle – has a free accessibility plug-in for PC; uses its own text-to-speech engine, so won’t work with screenreaders; not possible to copy and paste text; the finest grain of movement through the book is sentence by sentence; allows synching of different platforms so notes made using Kindle on the iPad can also be viewed on a PC. (Apparently it’s very easy to bypass the digital rights management and convert both MOBI (Adobe) and AZW (Kindle) formats to ePub and read the book on another device!)
  • iBooks 2 (Textbooks) on iPad – proprietary version of ePub v3, although authoring software, iBooks Author, is free; good for embedded graphics; can only be used on the iPad, not on the iPhone/iPod nor any other device; limited textbooks in the iBooks Store; possible to read ePub books using iBooks 2, but the fine-grained reading experience isn’t there; words highlighted as played; full typographic control (e.g. enlargeable text, high contrast, etc).
  • Blio – has incremental zoom for focussing on a small section of text and back out again.
  • ReadHear – a downloadable app for Mac or PC; uses DAISY; accessible maths equations; words highlighted as played; full typographic control (e.g. enlargeable text, high contrast, etc); rich screen reader access (for DAISY books only).
  • NookStudy – cross-referencing; synchronised highlighting for comparison purposes, where several books (or different pages of the same book) can be open at the same time; cut and paste; look-up using Wolfram Alpha.

For further information, see Ken Petri’s e-Book Reader Accessibility and Comparison Matrix (under development).

Although the presentation focussed on the accessibility of readers rather than on the content, some mention was made of authoring tools. For example, Calibre is a free, open-source tool that will convert across formats using RTF (Rich Text Format), e.g. from Word to DAISY (although it doesn’t do MathML). There is also a plugin for creating DAISY books from Word itself.

To sum up the importance of e-textbooks, Ken’s presentation included a quote from Eve Hill, Senior Counsellor to the Assistant Attorney General at the Department of Justice:

“In education, the current transition from print materials to digital materials creates and incredible opportunity for people with print disabilities to finally use the same products as their peers and to gain the same benefits as their peers who do not have disabilities.”

Of course, there are negatives, such as affordability of devices, proprietary formats, limited storage capabilities on some readers, possible short shelf-life as device OS’ (Operating Systems) move on, etc; and authors and publishers still need to be made aware that they need to make the content accessible. However, I think e-textbooks have much to offer everyone, not least the opportunity to present information in an interactive and engaging way in a format that almost everyone can access.

Joint BSI/JISC CETIS Accessibility Workshop

Thursday, March 24th, 2011

February’s Accessibility SIG (Special Interest Group) meeting was jointly run with BSI (British Standards Institution) as an informal workshop, focussing on the accessibility standards’ work being done around the world across various domains. It took advantage of the presence of a number of international standards developers and strategists, who were in the UK (United Kingdom) at the time, to foster exchange of work and ideas between the standards and education communities.

Presentations ranged from an overview of the accessibility standards work being done across the globe by Alex Li (Microsoft) to the development of accessible widgets by Elaine Pearson and her team at Teesside University.

Several of the presenters talked about their ongoing work in accessibility specifications and have asked for feedback from the community. So if you would like be involved in helping to shape these developments, people working on the following specifications would really appreciate your feedback:

* Standardisation Mandate M/376 (Phase 2) - Dave Sawdon from TRE Limited described how this work will create European accessibility requirements for the public procurement of products and services in the ICT domain (similar to the American VPAT (Voluntary Product Accessibility Template), which was introduced by Ken Salaets of the Information Technology Industry Council). The development team are particularly looking for public procurement officials to help define this standard.
* Access For All v.3.0 - works on the premise that personalisation preferences need to be machine readable, so it uses metadata to describe these personal needs and preferences. Andy Heath and the specification development team at IMS would like people to download it, try it out, implement it, check it works, and provide feedback.
* BS 8878:2010 Web accessibility. Code of practice - Jonathan Hassell, BBC, talked us through the background and purpose the recent web accessibility Code of Practice and Brian Kelly, UKOLN presented BS 8878 in the context of an holistic approach to accessibility. However, whilst it is now available for public use, user testing of the Code of Practice can only really be done in the field, so please join the community of practice and provide feedback on your experiences of implementing BS 8878.
* Mobile Applications Accessibility Standard - This standard, proposed by Yacoob Woozer of the DWP (Department of Work and Pensions), is still very much at the drawing board stage, with the focus on mobile applications rather than on creating websites that can viewed on different devices. However, suggesstions on what to include in the standard would be welcome.

Several of the presentations focussed on the work of specific standards bodies - David Fatscher from BSI gave us an overview of BSI; the various ISO standards which feature accessibility elements were introduced by Jim Carter from the University of Saskatchewan; and Shadi Abou-Zahra of W3C talked about the WAI (Web Accessibility Initiative) guidelines.

And finally, I am very much appreciative of the work that the BSI staff and Andy Heath put into making this event such a success. It was it was a great opportunity for the standards and education sectors to get together and I hope that some lasting collaborations have been forged.

Crowdsourcing to Fix the Web

Tuesday, March 8th, 2011

Well.. not the whole web, obviously, but some of the inaccessible bits. Fix The Web is a site which encourages people with disabilities to report any accessibility problems they have with a website. Volunteers then take these problems up with the website owners.

It is not intended to make web developers lazy (”I’ll wait until Fix the Web volunteers tell me what I need to do”) but rather to highlight the issues faced by people with disabilities, particularly as most web developers are not accessibility experts and most people with disabilities are not web developers.

Using a middleman (or woman) to act as an interface between people with disabilities, who experience problems with inaccessible websites, and the web developers themselves could help make the web a better place for everyone and act as an informal means of educating developers about the importance of accessibility.

iPad Accessibility

Thursday, May 27th, 2010

I’ve just had a very quick look at the Apple’s latest and much awaited offering - the iPad. I say, a “quick look”, because I haven’t yet been able to wrestle it from the grasp of its new owner. However, I did manage to request a demo of the accessibility features.

How can something so visual, which relies on accurate touch, be made accessible? The form factor has a lot to do with it. The iPad is much larger than the iPod Touch and iPhone (not quite a sheet of A4) so Apple has more room to play with, which helps. The extra real estate means icons for the apps can be selected with even the largest or most arthritic of fingers unlike the iPod Touch or iPhone, which require almost pianistic dexterity.

There are accessibility settings for text-to-speech and magnification, although you’d probably need someone to set the settings on first use. This changes the gestures required to use the device, e.g. for magnification a three-finger swipe will increase the size, etc. But for me, the way the device works for visually impaired people really caught my attention. By selecting the Voice Over (text-to-speech) setting, every time the user touches the screen anywhere, a box highlights the text and the name of the app is read out. The required app can be selected by tapping. This means that visually impaired users can still navigate and select the various apps on what looks like a completely visual interface.

The iPad comes with a free e-book - Winnie the Pooh - and I was intrigued to see how this would be handled. The book has images and I was pleasantly surprised to hear them described. The descriptions were far more descriptive than alt text. The image of Pooh sitting outside his house was charmingly described, even down to the “childish writing” of the sign saying “Mr Sanders”. OK - I guess it’s down to the publishers of e-books to ensure that their books are accessible (and also to the app developers), but it does show what can be done.

These comments have only been made on the briefest of looks at the iPad and there will no doubt be some accessibility “gotchas”, but I think the size of the device has made a huge difference to the way in which accessibility can be handled.

So now, I’m going to see if I can distract the iPad’s new owner so I can have another quick look, but unless It’s by something equally as innovative, I don’t think I’ll have much of a chance!