Skip navigation.

User Centered

Studying the design of everyday things

Posts tagged with "input device"

Link: Precision Touch Screen

, , , ...


dantesoft, who clearly was concerned about the lack of posting as of late, sends in yet another link from the Technology Review

Precision Pointing with Fat Fingers

Interesting approach. It's nice to have a toolbox of techiniques to use as we get more mobile devices and interesting interfaces.

Thanks again Dantesoft!

Link: Mobile phone keypad design

, , , ...



We talk a lot about mobile phones around here.... a LOT. Well, here's more fuel for the fire: a new method that puts the ABCD layout surrounding the traditional phone key buttons. Faster than the multi-tap, but qwerty it's not. Still not a bad compromise I suppose. What do you think? Looks a little "loud" to me from a design perspective. But I understand the diffculty of laying a qwerty orientation into that design.

I'll pit this in the "moderate" middle of the road design with the Pearl/Sure-Type devices.

Another hat tip to dantesoft.

Link: Location aware (concept) watch

, ,

Hot on the heels of me getting fired up about cellphones having a better understanding of the users motivations etc, I find the Just-in-time watch (via Gizmodo) that takes a (conceptual) stab at solving some of these issues.

From the site:

The watch knows the wearer's actual position coordinates via GPS, GSM-tracking or other techniques. In addition to that the cell phone enables a data connection with the www. Appointments with site coordinates can thus be synchronized. They were entered in advance e.g. into the cell phone or into the computer with a calendar tool like iCal. Furthermore the watch can access web-based navigation-, timetable- and traffic information services.


Just-in-time watch


Follow-Up: Swapping the screen & interface on handhelds

, , , ...



Here's a website called "Today's New Ideas" that is posting a patent document that basically swaps the keypad/interface and the display. This is a follow-up post because this is the exact same reasoning I brought up in regards to my iPod, except the subject of this link is a mobile phone. I still am surprised this isn't more common.

I will say that another added advantage of this configuration, apart from a more comfortable grip is the opportunity for less facial oils (and/or makeup or whatever) getting on the screen. The buttons would be closest to touching your ear and cheek. Try it! Flip your phone around. Also test how hard you'd have to push your phone against your ear to accidently press any buttons- on my phone it's difficult to do.


(via Usability in the News)

Links: Contemporary takes on everyday things and an interesting interface project

, , , ...

Two links to englishrussia.com, the first submitted from dantesoft is a series of everyday things with some contemporary redesigns, including this hour-glass watch.

The second I found in my Usability feeds and thought I'd share. It's a "3-D touchpad" that doesn't really require touch- but you can hover your hands over. It looks like you can embed this under a keyboard and would be (according to the creator) inexpensive to implement. Difficult to imagine this replacing a mouse, but definitely nice for gestures! Very interesting


Fat Fingers (man) vs. Predictive Text (machine)

, , , ...

If you've ever seen the show "The Weakest Link" you're familiar with the "bank!" concept. In the game, they ask each player a question. Each correct answer builds onto a running total. When a contestant yells "bank" that total value is stored off the to the side and the counter is reset to zero dollars and they start to build again (more info). Of course if you don't "bank" it and you get the answer wrong, you start back at zero anyway with nothing saved. The idea is that you're chaining together correct ideas and every so often you have to say "yes, this is on the right track... lets save this progress" or gamble that you can get all the way though without stumbling.

This is how predictive text entering is supposed to work in my opinion. You start punching keys on your phone and every once in awhile you "bank" it by picking from a list to put the software on the right track. Of course, this takes time to pick and choose in the middle of typing.... so you could hope for the big payoff by just hammering out all the letters looking at the garbage on the screen until you get to the end and if you're lucky the software will end up with the permutation of letters that results in some form a legible, desired word. If not, you get garbage and you have to delete the word and start over again. You are the weakest link. Good-bye!

This is essentially how it worked on my Motorola phone. It wasn't perfect but I was very pleasantly surprised by it considering I was sharing three or four letters per key (T9). My new phone has a qwerty layout keyboard that has one key sharing two letters (pictured above) and a different kind of predictive software that I have heard good reviews about it on youtube and web forums...where the "users" are. (notable exception: David Pogue). I honestly expected based on the reviews and feedback and experience with Motorola's offering that I would rarely have to correct typing again. Sure-Type learns names and complex words as I go and I think it even scans the email I'm responding (don't quote me on that). It all sounds (and actually is) great. But I think it just might be a little too smart for me. The biggest stumbles all come from Sure-Type trying to assume what I'm thinking and it has caused me many more headaches than my junky old RAZR that I lament. It's a man vs. machine problem where the machine isn't always that great at figuring out what this man really means.

The good news is that in general, I'm very happy with Sure-Type. I've learned from the BlackBerry Forums that if you just look at the keyboard instead of trying to figure out if the prediction will come though, it's much easier to type. I've also learned tips and tricks on tweaking the auto text work with the sure-type (auto text is like the auto-correct in word... you can define your own so it's easy to create shortcuts...example a "sm" will insert a :smile: for me for my cute text messages). Sure-type is about a million times better than the multi tap method, and it works pretty well overall. As I've said, the biggest problem here is with me and my typing skills. When I screw up, the software doesn't know *what* to do with me. But well, this is user centered blog, so we better hash all this out...


Back Up Back up 'cause it's on
If you typo a word then backspace to correct it, the software thinks it predicted a word wrong when you really just typed it wrong. Of course sometimes (oddly enough, when it predicts a word wrong) this is a good thing. But in the case of a typo it's absolutely frustrating...

Example: I want to type "Ive" (which the software will politely put the apostrophe in for me). I type i,v, and it's highlighting "iv" combo, so we're going down the right path. Oops, spoon thumbs strike again and I accidentally hit the QW button instead of the ER button. Now it's recommending "ICQ" as the desired input. so I backspace and hit ER and "space" and end up with "ice" as my word.

Wonderful. So I just delete the whole thing and retype and just get "uce" (?) as my primary recommendation because it thinks I'm not interested in iv* or ic* so it now tries to figure out what I want by starting with "u" and I have to scroll over to ive. That's a lot of work for I've just because I made one typo! Granted I should have corrected it by paying attention after deleting the Q from ICQ, but it's a strange idea to delete the last character and then have to reevaluate the entire word. My mindset when I was typing "iv" was "I'm on the right track..." and now the entire word is wrong? I can't even see the track anymore.

Take it to the bank

That leads me to problem number two which is related to, but bigger than the first. It doesn't remember your forced entries. Forced entries are what I'm calling the "bank!" you do with predictive text software. Steering the software where you want it to go; you build a word and select which combination from the possible choices you'd like and it uses that as the baseline for further entries.

As an example again. This time around when I spell "I've" I type i,v, then I "Bank it!" by selecting the iv combo:

I'm telling the software. Ok- we've gone this far. Lets stop and double check our work, calibrate and mesh. This is what I'm after.. got it? Ok. So then I go on to press the "ER" key and see ive & ivr (so far so good...) and then!: ice|uce|ucr|icr

.... wait...what? I thought we went over this already? I said "iv" so why are you bringing up old stuff we already settled? It's like a bad relationship.

As I mentioned though, it's got ive right there in its sights, so all is well, but with longer words it's frustrating because backspacing/deleting still triggers all these other suggestions to come up which just adds unnecessary noise. The end result is that there's an oppotunity lost here. Yes the software works great. But there's a chance to make it better by remembering what I've banked. I'm not going to choose "Iv" then later on in the word choose "Ic.." instead, I'm just not quite that fickle. So leave that stuff off. If I don't bank it at any point along the way for longer worlds, and just look at the keys & hammer away, the word "California" ends up being "Validpenis". No, I didn't make that up, that's what it really ended up being. But at least I feel comfortable that my phone thinks that's important. I'd sure hate for it to be invalid.

Track to the Future

, , , ...

Artemis, Sidekick, Pearl.. all examples of what David Pogue described as a "Brilliant Idea that Found a Welcome." The Mobile Trackball. I think these "mini-mouses" are great for getting around my mobile's UI, but there is still a lot of work that needs to be done to really create a great user experience.

Treo was topping my list prior to my Pearl purchase due to the excellent combination of Stylus/touchscreen, nice clickable D-Pad and of course Qwerty keyboard. I compromised on the touch screen and tried the trackball and found that it's a comparable solution, but still needs to mature a bit more.

For example, on my BlackBerry's OS, even though the Pearl is the namesake that dares to replace the clickwheel, the UI is still remarkably living in a linear world. I have found only 4 instances where I can move around in 2D space like a mouse.

Read more...

Plug & Chug: Whiteboard UI

, ,


I had a hard time finding a project link for this, but out of MIT comes this whiteboard/software that demonstrates some interesting UI concepts. Google search on "ASSIST sketch understanding system" to find more information. (I couldn't!)
updated- link: http://rationale.csail.mit.edu/project_assist.shtml

More cool ideas in desktop interfaces

, , ,

Dantesoft sends in this follow up link to the desktop post a few days ago.

Multi-modal desktop. This video shows some interesting ideas in interface design. If you are at all interested, you should take a look.

This video shows some of my PhD research on multi user multimodal tabletop interaction. It allows multi user gesture and speech interaction over Google Earth and Warcraft III on a digital table displa..

Innovative interface

, , , ...

Jeff threw this youtube video my way of a MacBook using the Sudden Motion Sensing software in a very creative way: SmackBook

I immediately thought- everyone else is taking lemonaid and making lemons.... but this is strickly a lemon-aid to lemon-aid creation.

There is no shortage of people using the motion sensing capability to do such profound things as using it as a lightsaber (youtube video)and have it respond according to how you wave it around. I suppose it remains to be seen if this is actually useful (rather- that it won't inadvertently go off all the time), but it seems like more than just a gimmick and might have some real cool interface implications if developed further. I've seen commments on youtube calling it useless- but I would strongly disagree.

This reminds me of the Opera widget "usefulness" talk- just because people are building clocks and calendars with the technology, doesn't mean there's not a creative, useful way to use it.