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Sandra Earl

Tim Anderson's ITWriting - Tech writing blog » Adobe AIR: 10 reasons to love ... - 0 views

  • 3. Easy conversion of existing Flex or HTML applications. It’s the same basic runtime. In the case of HTML, AIR apps rely on WebKit, the core component in Apple’s Safari web browser.
  • 7. Rich design and multimedia. This is Flash, so ideal for highly customized UIs, animation, sound and video. Adobe is proving the point by creating a media player built with AIR. Existing Flash developers can easily use their skills to build AIR applications.
  • 4. Proprietary technology. AIR applications depend on Adobe’s runtime.
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  • 6. No model for commercial components. It is not clear to me how a component vendor could sell an AIR component while protecting it from unlicensed deployment. This may limit the availability of 3rd party components, with a corresponding impact on productivity.
  • 7. Schizophrenic development model. AIR supports either Flex development, or HTML applications which run in WebKit. The ugly side of this flexibility is that there are two SDKs, even two JavaScript virtual machines with different capabilities and characteristics. While it is nice to have a way to render HTML, I am not convinced that the web application model is worth it, given the complications it causes. After all, web applications run perfectly well in the browser.
  • Lack of UI standards may lead to annoying inconsistencies between AIR applications. We are used to this on the Web; now it is coming to the desktop as well.
Sandra Earl

How did you get into Web accessibility? | 456 Berea Street - 0 views

  • Personally I have several reasons for advocating Web accessibility. First of all an idealistic one: I want everybody to be able to use the Web. I am not disabled (yet), so I can (and am often forced to) muddle through sites that are badly built, but a person with a disability may not be able to. Since it is possible to build sites that almost everybody can use, I don’t see why we shouldn’t. Then a few reasons that some may call selfish: I do not have any problems related to motor skills, but I have a really hard time using dropdown and flyout menus, especially hierarchical ones, as well as phony Flash or JavaScript scrollbar imitations. Accessible sites in general either do not contain such obstacles or provide ways around them. Despite having no substantial eyesight problems, I find reading tiny text (below 11px is tiny to me), low contrast text, and reading any size high contrast, light-on-dark text to be very straining. A website designed with accessibility in mind is less likely to cause legibility problems for me. I like being able to use my keyboard to navigate websites. Accessible sites are keyboard friendly since they do not force people to use a mouse.
Sandra Earl

WebAIM: Screen Reader Survey Results - 0 views

  • We received 1121 valid responses to the screen reader survey, which was conducted Dec. 2008 - Jan. 2009.
  • Skip to content22% Skip to main content28%
  • 33 respondents (2.9%) reported being both deaf and blind.
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  • Please rate your computer proficiency Response% of Respondents Expert22% Advanced44% Intermediate27% Beginner8%
  • Please rate your screen reader proficiency Response% of Respondents Expert17% Advanced41% Intermediate32% Beginner9%
  • Screen Reader Usage
  • Of the 1121 respondents, 74% use JAWS, 23% use Window-Eyes, 8% use NVDA, and 6% use VoiceOver. While several other screen readers were reported, these were the most prominently reported. Individual versions of screen readers are not yet computed, but generally the majority of users are using the most up-to-date version of their screen reader.
  • How soon do you update your screen reader after a new version is released? Upgrade Window% of Respondents Immediately41% First 6 months25% 6-12 months9% 1-2 years9% 2-3 years4% 3+ years6% No response6%
  • How customized are your screen reader settings? (e.g., changed verbosity, installed scripts, etc.) Response% of Respondents A lot29% Somewhat40% Slightly21% Not at all7% No response4%
  • a lot or some customization was reported by only 27.6% of respondents with no disability versus 71.4% for those that reported blindness.
  • 78% of respondents reported using a screen reader on a desktop computer, 54% use a screen reader on a laptop, and 12% use a screen reader on a mobile phone.
  • No respondents who use screen readers for evaluation reported using a screen reader on a mobile device.
  • Which web browser(s) do you currently use with a screen reader? Browser% of Respondents IE633% IE768% IE82% Firefox39% Safari6%
  • Respondents with no disability were nearly twice as likely to list Firefox as blind respondents - 66% to 37%.
  • The percentage of Safari users is over double that of the overall population - this may be due in part to the fact that some in the Mac community actively solicited survey participation and encouraged respondents to indicate their Safari use, perhaps partially due to feeling snubbed because we didn't list them with IE and Firefox as direct choices.
  • When first accessing a new, unfamiliar home page, I'm most likely to... Response% of Respondents Read through the home page46% Navigate through or listen to the links on the page35% Use the Search to find what I'm looking for13% Look for a site map or site index3% No Response2%
  • Interestingly, the more proficient screen reader users are more likely to read through the home page and use links less often than less proficient screen reader users. This may be due to faster reading speeds for more experienced users. The home page strategies used were very similar regardless of proficiency, disability, or amount of screen reader use.
  • I use "skip to content" or "skip navigation" links... Response% of Respondents Whenever they're available22% Often16% Sometimes28% Seldom19% Never10% No Response4%
  • Some questions were of a technical nature and we understand that many participants may not have been very technically savvy. Responses may also be based upon user experiences with web content that is generally inaccessible. We cannot help but wonder if responses may have been different if screen reader interactions with web content were typically very positive.
  • I use Access keys... Response% of Respondents Whenever they're available22% Often16% Sometimes28% Seldom19% Never10%
  • I navigate by headings... Response% of Respondents Whenever they're available52% Often24%
  • 76% always or often navigating by headings when they are available.
  • I use site search functionality... Response% of Respondents Whenever it's available26% Often25% Sometimes31%
  • Find the word "Search"18% Jump to the first text/edit field on the page25%
  • Jump to the first form element in a page36%
  • Proficient screen reader users were more than twice as likely to jump directly to the form or text/edit field than less proficient users. Less proficient users were nearly three times more likely to use more manual methods (reading, tabbing, or finding) than more proficient users.
  • a majority of respondents seldom or never use site maps. There was no marked difference in the use of site maps across screen reader proficiency or disability. In general, it appears that site maps may be beneficial, but are not commonly accessed by screen reader users.
  • Text-only versions are always used by many and never used by many. As such, it is very difficult to interpret the value they have for screen reader users. More proficient screen reader users were much less likely to use text-only versions than less proficient users. This may suggest that proficient users employ sufficient techniques to render the main version acceptable to them. Or, it may suggest that proficient users do not gain value in using text-only versions, which are often less than optimal.
  • If content is identified as being "for screen reader users", how often do you use it? Response% of Respondents Whenever it's available38% Often15% Sometimes25% Seldom13%
  • A closer analysis, however, reveals that pop-up windows are reported as very difficult twice as often by less proficient screen reader users than with higher proficiency. Alternatively, more proficient users were three times more likely to indicate that pop-up windows are not at all difficult. This shows that less proficient screen reader users (which represent 41% of respondents) have more difficult experiences with pop-up windows.
  • Firefox users were much more likely to give a favorable response, perhaps a reflection of Firefox support for ARIA, etc. Evaluators and those without disabilities were nearly twice as likely to indicate that these applications are not very or not at all accessible than those that always use screen readers or have disabilities. This may suggest that these applications are actually more accessible than evaluators believe them to be, or alternatively, that screen reader users with disabilities are less knowledgeable about the true inaccessibility of these technologies.
  • 66% of evaluators preferred that the image be ignored, compared to only 28% of those that always user a screen reader. Similarly, 65% of those with no disability preferred that the image be ignored, compared to 29% of those with disabilities.
  • If a web page contains a photo of the White House, I prefer that the image be identified as... Response% of Respondents Photo of the White House80%
  • 69.4% of evaluators found them difficult compared to only 42.6% of those that always use a screen reader. Those with higher screen reader proficiency naturally found these links easier.
  • 71.5% of screen reader users reported that Flash is difficult
  • While the majority (58%) of users reported that frames are easy, those that are blind were 3 1/2 times more likely to indicate that they are easy than those with no disability. Similarly, those that always use a screen reader reported frames as easy nearly 3 times more often than evaluators. This perhaps suggests a misconception among those that do not have disabilities that frames are very inaccessible when in fact those with disabilities find them easy.
Sandra Earl

InformIT: The Adobe AIR Platform: Software Revolution or Evolution? > The Adobe AIR Pla... - 0 views

  • Adobe AIR is a cross-operating system platform that allows developers to leverage their existing web development skills in HTML, Ajax, XML, Flash and Flex to build and deploy Rich Internet Applications for the desktop.
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