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Elevator Door Open/Close Symbol Confusion

The Hold that elevator! post, describing the confusion created by two sets of open/close buttons, on  The Cooper Journal renewed my interest in a question that has long bothered me, and which may even have been the genesis for my fascination with symbols. The question is simple—what do the two slightly different door open/close button icons mean?

I have occasionally searched for the official source defining the elevator car button icons, but never succeeded until now. Even after having spent nearly $2,500 on official symbol standards over the years, I failed to find these mysterious buttons in any IEC, ISO, or other international symbol standard. Why? Because the definition of these icons is hiding in an American standard that is mostly concerned with building accessibility for persons with disabilities.

After much searching, I discovered the answer, and have a few words on the subject of elevator button symbols. (OK, well over 1,500 words.)

After locating the relevant standards and taking a fresh look at the audible, visual, and tactile symbology used in elevators, it became apparent that the simple question of “what do these slightly different door open/close icons mean?” exposed the similar confusion I had experienced was nearly universal, that not even top-notch user interaction experts knew the answer, and that the problem was much deeper than just symbol design.

This simple issue is a perfect example of how the failure to use natural mappings, system design, established standards and design principles, and proper testing for usability results in an everyday item providing a universally bad user experience yet never being fixed.

Posted in Design, Symbols, Usability.


Symbols can be bad

Despite my continuing belief in the importance of symbols, I must point out that they are not a panacea and have some inherent limitations, especially if poorly designed, but even when well-designed.

So when selecting or designing symbols, it is equally important to know their shortcomings, and that you Don’t Use Symbols When…

Posted in Symbols, Usability.


BJ Fogg on “Why Simplicity Matters”

While reading old postings on Push Click Touch (start at that post and go forward for a very interesting history of buttons throughout the history of technology), I came across a reference to an interesting-sounding lecture by Stanford professor BJ Fogg, given at the 2005 WebVision conference. The site had deleted the audio podcast of Why Simplicity Matters, but I was able to find a copy on the Wayback Machine.

It’s a fascinating perspective on why simplicity sells, and why bad technology frustrates us (Fogg believes it’s innate in our evolution). It’s slightly difficult to follow a few segments where he is commenting on photos and videos being presented, but still very much worth listening to.

Posted in Design, Usability.


A Search for Symbols Opens Many Doors

I’m currently researching the design of elevator button symbols—the door open and close symbols, to be precise—and my search for reference material and real-world usage has taken me to some pretty bizarre places.

My initial finds were not at all surprising; I found countless articles and blog posting, each with many to dozens of comments that all echoed the same thought—everybody has trouble finding the door open button in an elevator, and most have difficulty telling the open and close buttons apart from each other.

Another search led me to the standard symbols for clothing care (where an article discussed the change of the “don’t bleach” symbol from a filled triangle to an open one).

Camera Lense Open/Closed SymbolsMy most recent searches led me to forum discussions questioning what the pac-man symbol on the battery door of a camera was, while another link in that same search revealed the source and meaning of the symbol (that the lens cap must be open before this operation is performed), the fact that symbols for cameras have been defined by at least two different organizations, one of which has no business designing symbols and is as likely to cause injury as confusion with their misunderstanding of core symbol design concepts. (Hint: never misappropriate a symbol designed for safety for an unrelated purpose.)

I am already shaking my head in anticipation of what I will find when I continue my symbol searching.

Posted in Design, Symbols, Usability.


Bookless Stanford Engineering Library is a Bad Idea

Stanford University’s Engineering Library is in the process of getting rid of 85% of its books, as it moves into a new building, and I have some huge philosophical and practical problems with this.

The first problem is that digital books are still in their infancy, and while they offer a far superior search capability, the tactile experience and performance of quickly scanning a paper book, magazine, or technical document has not even come close to being approached by any electronic device I have seen. For this reason alone, this shift may have a detrimental impact on how well students can parse and absorb technical material. Screen size alone is a huge issue, and compare how much information you can view at one time on even a 17″ laptop screen with how much visual information you can spread out on a library table. The multitasking and comparisons allowed by physical media is vastly superior to what even the most advanced e-book can provide.

The second problem is that while some argue that engineering is such a quickly changing discipline that printed books can’t be expected to keep up, there is much knowledge that doesn’t change rapidly, and the ability for information to change or disappear rapidly from one edition to the next, without the ability to quickly compare it to a known historical reference, is likely to degrade the ability to catch errors of omission, rewording, or worse. And in many cases, it is still far easier to quickly share printed material than it is electronic material—especially that which is protected by DRM.

The third problem goes much deeper. It has to deal with the librarians reacting to what the students are and aren’t reading, then making decisions about what to keep based on that, as opposed to keeping what the librarians ought to know they need to have accessible. I find it hard to believe that in tossing out 80% of the library’s books, that the librarians have not discarded important reference material that hasn’t been accessed simply because its relevance wasn’t highlighted by professors or the librarians.

I witnessed a concise example of the third problem—one that unfortunately does not seem to be confined to Stanford’s library. My last visit to the Terman Library was perhaps a year and a half ago, when I was looking for symbol design and usage guidance for use in automobiles and on other equipment. Surely the engineers Stanford is turning out need to be able to have access to these critical documents, especially since their cost is prohibitive to any student without his own (substantial) trust fund. I found a few collections of official ISO/IEC symbols, mostly in the automotive standards documents, but none of these detailed how to use or design the symbols.

Worse, the librarian wasn’t even aware of these standards bodies or their importance. She was, however, quite helpful in showing me how to find which other libraries might have these documents on their shelves. That answer was shocking and enlightening—fewer than a half-dozen libraries throughout the entire U.S. had any one particular standard I was after, and none had them all. I am convinced that this is one of the reasons that products remain hard to use; that as visible as interaction design is as a discipline now, its fundamental, key concepts are not taught to the vast majority of engineering students, let alone the graphic designers who are routinely asked to create them without any proper training.

Without taking a list of all the books Stanford is about to trash, I can’t be sure if they are removing important tomes, but I’ll bet it’s a significant amount, and the loss will be felt years down the road.

Posted in Design, Usability.


Cartoons and Junk Food—Unclear on the Concept

I read with mild amusement and strong dismay the latest tactic of the nanny-state ninnies: Study: Cartoon characters attract kids to junk food.

This is particularly interesting given that I’m in the middle of reading Emotional Design by Donald Norman.

Are the proponents of banning the use of cartoons on “junk” food really that ignorant of the principles of the first amendment, free choice, and of innate human psychology? Of course kids like food associated with cartoons! It’s the same reason we adults like other products endorsed or used by spots figures and other celebrities. It’s hard-wired into our evolution.

Use the power of the free market and our innate desire for association (popularity, recognition, and “fitting in”) for good, as trying to suppress it will likely have unintended negative consequences. Start your own food company, and put these cool cartoon characters on healthy foods!

And please go read chapter 2 of ED.

Posted in Marketing.


Fail: Twitter Location Divining

Twitter.com Hey Twitter! I love the idea of being able to tag my current location in the Web interface, but it has a serious flaw.

Your code assumes that it knows where I am better than I do, and provides no way for me to correct it.

I am firmly ensconced in the center of Foster City, the HQ location of Visa, Sony Computer Entertainment of America, and a few other notable companies. Yet Twitter is convinced I’m in San Mateo. Foster City appears nowhere on its pull-down list, and when I click the little x to delete my location, I’m greeted with a link to “add your location”, which promptly decides that I am in “Downtown, San Mateo”. :-(

Where is the field for me to enter my own city name? Or to enter GPS coordinates? Or to even tell you that your suggested list is missing cities it should have?

Update

The location feature also seems to fail when you’re behind a firewall. If twitter can’t automatically determine my location, why can’t I enter it manually?

Again, the place I’m tweeting from isn’t that backward a location. 94010 may not have quite the same recognition as 90210, but the two cities it represents aren’t too far behind in wealth or famous residents.

Update 2

No, twitter, I’m not anywhere near “Washington Mall, Washington”, but the corporate firewall I’m going through is within a 2 block radius of that. And are you sure that there isn’t a “Washington Mall, WA”? Is it too much to ask for the additional 4 characters it would take to say “Washington Mall, Washington, DC”?

Posted in Usability.


SF-PechaKucha #38 Inspiring

Last night was my third time presenting at the San Francisco PechaKucha Night, and perhaps the most inspirational of the four(?) events I have attended, partly because of the response I got to my presentation and the interesting conversations it generated later, but mostly because of a couple of the other presentations.

One I can do justice to here, without linking to the yet-to-be-posted presentation. The second really deserves to wait until I can point you to the presentation itself.

Christopher Simmons’ (of MINE) talk was an elegant exercise in minimalism that worked exceptionally well. In all of the 20 slides allotted to PechaKucha talks, his contained photos of only two objects. One $5 corkscrew and one $50 corkscrew.

That’s it—20 different close-ups and comparisons of these two extremes of form and function. In this brief 6:20 talk, Christopher told us everything we needed to know about why the $50 Rösle is worth ten times as much as the junky approximation of a useful, desirable tool. He waxed eloquently about the beauty/ugliness of the finish, rivets, and form, how the Rösle sits in place almost no matter which side you lay it down on, and even the almost insignificant stud on the foilcutter whose only function is to stop the cutter from hiding too deeply in the tool.

His characterization of the tool was so compelling and complete that I didn’t feel the need to handle the actual object to believe in his passion for it, and when I did get to scrutinize the corkscrew, it was not to decide if I agreed with him, but to marvel at what I already agreed with.

This talk has inspired me to take a brief break from my campaign for better symbols, and attempt to emulate his sublime skill. Now, to find an object so deserving…

Posted in Design, Usability.


Fail: Facebook Hides Unconfirmed Status

Now I understand what’s going on that bothered me in my previous posting. Since a Ping.fm posting was the first time I had tried to Like an item and couldn’t find the link to do so, it naturally occurred to me that the problem was with Ping.

But Ping is not at fault here, Facebook is! I didn’t realize why until I read another Ping.fm posting that I wanted to Like. It turned out to be from the same friend as the first, and when I went to his wall to sleuth some more, I discovered that he had not yet confirmed me as a friend. Which of course means I can’t Like or comment on anything he posts, even though it is appearing on my Facebook news feed.

There are multiple causes of my confusion, all related to Facebook’s failure to communicate.

  • There is no indication on my news feed, or anywhere else items from people I’m following appear, that I have friended them but they have not confirmed me as a friend. Since this condition creates interesting restrictions on how I can interact with them, this status needs to be indicated visually on each appearance of their content.
  • The Comment and Like links that are normally below each entry on your News Feed are simply missing when they’re not available, instead of appearing grayed out (or in strikethrough). The end result is that I spend time looking for these links instead of being given a visual clue they’re not available.
  • There is no way to get an explanation of why I can’t comment or like something. I should be able to find out, if not by reading a text label or icon near the posting, hovering over or clicking on some status icon that would explain any limitations about this friend or posting.
  • Most, but not all, of the icons Facebook puts in front of its annotations lack hover text that explains what the icon means. One exception is of course the thumb-up like icon, which has the hover text “Click here to like this item” when I can like something, and absolutely nothing when I can’t.

As badly as they have handled the privacy debacle, I believe it is merely a symptom of their designers not putting enough thought into the usability and the overall system design. Facebook will have greater success in overcoming their privacy gaffe if they go back to first principles and work at making the whole product easier to understand and interact with as a whole, instead of trying to fix one part of it they mistakenly believe is isolated from the rest of the system’s behaviors.

Posted in Usability.


Failure—Ping.fm inside Facebook

There’s a cool posting by a friend that popped up on my Facebook wall, automatically included from his Ping.fm account.

I’d like to comment on this posting. I know it’s possible because I see two other comments already, but there is no button or link that will let me make a comment.

I can’t even click on the “P” icon to take me to Ping.fm! At the very least, this should link to a page describing how I can comment on such posts.

Even once I’ve created a Ping.fm account, I can’t find any information that tells me how to comment (I presume it must be done within Ping).

And as a side note, the Ping.fm developers are stuck in 1971 when it comes to international time with their use of GMT. Please change this! UTC replaced GMT on January 1, 1972.

Posted in Usability.