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104

As pointed out in comments and other answers, pointer trails were originally "intended for" and "especially useful if you [were] using a liquid crystal display (LCD) screen" in Windows 3.1. LCD monitors at the time were mostly passive-matrix, whose typically slower response times meant your cursor didn't have time to get redrawn as it moved across the ...


80

Great question! This is an good case for microinteraction design. Microinteraction objectives In descending order of priority: Provide clear affordance for user to place card/wallet on reader Provide clear feedback that the user should hold the card on the reader until an outcome. Since this is public transportation, provide blind- and deaf- friendly ...


64

The original purpose of the "mouse trails" feature, according to the Windows 3.1 documentation, was to make the mouse easier to track on the very-high-latency LCD panels used in early laptops, by ensuring that the pointer was drawn in each position for at least a full refresh cycle of the screen. It turns out that it also makes the mouse easier to ...


55

No - there is no "friendly font" for all. Dyslexia is not a hard and fast condition. Different people who are dyslexic will exhibit differently. As a result a particular font that helps one individual does not necessarily help another. io9.com actually has a recent article which cited several studies on the subject: A Special Font to Help Dyslexics? More ...


31

The UK plug uses 3 wires -- two of solid colour, and a third that is 2-coloured in a stripe pattern. The colours are chosen so that each wire can be identified by colour blind persons. Here is what the configuration looks to people with colour blindness: From MrReid: Under the IEC 60446 standard only black, brown, red, orange, yellow, green, blue, ...


28

This conclusions from Michael Hughes might be helpful for you to decide when to include a screenshot and when not to: So where does this leave me? I am going to be more open to including screen shots where they do the following: Help reassure the user that where they are in the UI is the right place to be Help call attention to a specific ...


26

Italics are a known problem for some people with dyslexia and the general advice has been to avoid italics (particularly large blocks of italic text) and instead use bold for emphasis. The British Dyslexia Association says: Avoid underlining and italics: these tend to make the text appear to run together. Use bold instead. UX Movement touches on ...


23

Color coding is one of the basic covenants of design and usability. To flaunt the significant benefits of color coding away purely on the varying needs of < 10% of the population would not be at all appropriate. There are multiple types of color blindness, so while one color might not work for some "color blind" people it will do just fine for the rest. ...


23

This is where I'd argue that UX isn't the one to fix this. All they can do is apply duct tape and band aids to a poorly implemented technology. Fix the technology. It simply shouldn't take 3 seconds to read an RFID chip. On top of that, asking each person to wait 3 seconds to pass through seems like a logistical nightmare for crowd management. This is ...


19

Apart from the answer given, I would like to mention one very important Use Case where the solution is nothing BUT shadows. Text on an image When you don't have control over the image on top of which you are writing text, you have to ensure proper contrast for best readability. A Big hero Image seems to be rage these days. A dark shadow is added behind ...


18

In the Parliament of Ukraine they use both visual and audial means while voting, you can see youtube video (~10s). The sound consist of several tones which are percieved as the sequence, so stopping it somewhere in the middle sounds not natural. The row has some kind of harmony and natural feeling of the length. You could try to play some ~3s sound when ...


13

You need to clearly communicate in a non visual sense the fact that the menu has sub menu items. When thinking about the problem like this it turns out that you aren't restricted to just output text as you can also use the text in the tags and attributes. For visually impaired users you should be thinking in text, not images (this is actually very good ...


12

Marco Zehe, Mozilla accessibility QA engineer and evangelist, provided some advice in an article about implementing tabs in web apps with WAI-ARIA. He advocates cursor keys for moving focus between tabs in a set and then spacebar to activate the focused tab, which is consistent with the native desktop experience. Left and Right arrow keys should move ...


12

The study list linked to in the blog mentioned by Matt Obee is here http://dyslexiahelp.umich.edu/sites/default/files/good_fonts_for_dyslexia_study.pdf It's an interesting paper and the conclusions are worth working through: The main conclusion is that font types have an impact on readability of people with dyslexia. As they do on readability with ...


12

In some situations a drop shadow or stroke can be used to maximise accessibility and maintain the contrast ratio between text and the background. I have used this method once or twice when dealing with strict brand guidelines that demanded non-conforming colour combinations. It is mentioned as a technique for meeting the SC 1.4.3 (Contrast) criterion of ...


11

To me, the answer is yes, especially for dark themed sites. Here are some images from a site that I designed for my brother's roofing company. He wanted an all dark theme. So I gave him a dark gray background, some off white and gray body texts, all with darker CSS3 shadows. ( Small caveat: the images actually came out darker than the site actually is when ...


11

The XBox added a visual camera input device called the Kinect. They defined a number of gesture inputs, covered on the linked page and this one. This 2nd link includes the 'hold to select' gesture. Point the palm of your hand toward the screen, and move the on-screen hand over the item you want to select. To select an item, keep your hand over the item ...


9

You are correct. You should ignore the Technique 2.2.1 and only use Guideline 1.4.3. The reasons are as follows: Technique 2.2.1 is only a suggestion. As you point out, Technique 2.2.1 is “open to change.” It’s listed in a 14-year-old working draft that apparently hasn’t gone anywhere, and for good reason, as the remaining points will illustrate. ...


9

I am not sure if this answers your question, as it actually undermines it, but there are fare more studies on why proper capitalisation is prefered: ALL UPPERCASE IS HARDER TO READ Because Your Mind Doesn't Read Each Letter, Rather the Shape Of The Word Wichh Is Why You Can Do Tihngs Scuh As Tihs Why Capital Letters Are Dangerous (Guardian ...


9

I think a lot of people are afraid of making things accessible because they don't know anything about it. To be honest, these days, it's really not that hard. With respect to vision and mobility impaired users, WAI-ARIA gives us a ton of tools that we didn't have 10 years ago that all modern browsers and screen readers support. You can make interactive ...


9

The focus state should be more obvious than the hover state A mouse over or :hover state is a more direct interaction (i.e. the user is controlling the mouse cursor directly over the button they want to click) The :focus state, on the other hand, requires a separate scan of the entire page in order to determine which component is currently being targeted. ...


8

Man, when you asked that question, I thought you meant a Web 1.x monstrosity. I'm not sure there's a hard and fast rule on this but, generally speaking, that's what we would call light noise. My concern wouldn't be with the level of contrast, but with looking somewhat dated. Basically, as soon as Apple declared skeuomorphism to be a thing of 2012 and thus ...


8

There is actually research about this topic: http://www.opticsinfobase.org/oe/fulltext.cfm?uri=oe-6-4-81&id=63459 "Both text contrast and background contrast variation affect text readability. Background variation effects were only seen when the text contrast was low. Greater effects of background variation would be expected if larger background ...


8

Retype vs. summarize (a) If the entire text of the scan is relevant, the entire text should be provided in text form. (b) If only a certain part of the scanned text is relevant, only this part should be provided in text form. (It can have a summary in addition, as long as the relevant parts are quoted verbatim.) (c) If none of the scanned text is relevant ...


7

Definitely don't create a separate site. There are three points I think are critical to consider when it comes to inclusive design: Compliance with accessibility guidelines actually improves usability for the non-disabled (by 35% based on this source). Quite a few of the important guidelines also make business sense - either better SEO or a site that is ...


7

Dyslexia: colour and contrast The most important factor affecting people who suffer from dyslexia when it comes to colour is contrast: People who suffer from dyslexia find it difficult to read with high contrast levels, So While contrast can be provided by black text on a white background this is not so beneficial when considering Dyslexia. Research ...


7

You can start looking at existing systems in the public sector. Take for example pedestrian-crossing lights with a ticking sound for visually impaired people. It's a continuously ticking sound and it ticks fast enough to notice something is in progress. It can be a softer, shorter and different sound than the beep. For those who can't hear it can be combined ...


7

Adding to Alexey's great answer: You could have the reader play a sequence of tones in a scale that move toward a resolution; when the card is done reading, a resolving chord would play. This would make it even clearer that the reader is done, eliminating any doubt as to whether the sequence of notes is finished. I believe this could be done in such a way ...


6

I'm surprised nobody has really asked why you need an icon like this. I've been in the 508 business for quite a while now and I can tell you that there's a LOT of things you can do on the web to make it just work for everyone. There doesn't need to be an entrance for normal people and a back door entrance for those who have disabilities. You shouldn't ...



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