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I became a guerrilla UX fighter back in 1995.

Me in my guerrila days

I've been underground for many years, but recently decided to ditch the Kalashnikov, get out the trenches, and take a more formal approach to the topic.

Currently taking an MSc in Human-centred Interaction Design at City University, London.

I specialise in complex system, cognition and aesthetics; my current role is a UX/Product designer.


Nov
13
comment Adding a “none of the above” option to a list of checkboxes
@Angelo.Hannes Could you propose a better design in the SO question you have referenced? I argue there isn't a better design, and really hope I'm wrong!
Nov
13
comment Adding a “none of the above” option to a list of checkboxes
@Angelo.Hannes Sorry to say - but the recommendation is idiotic. There are gazillions of examples where the user must make an exclusive choice, but you don't want to provide a default. Perhaps a prime example is likert scales - any default will prime the users. That's exactly why no browser implements the standard.
Nov
13
comment Adding a “none of the above” option to a list of checkboxes
But we shall also account for the fact people are intelligent and given the context, the option "none of the above" implies that choosing it will disable all other choices. But is this the optimal design? I'd argue it isn't. You should also consider errors and recoverability - invisible logic makes the whole story far more complex.
Nov
13
comment Adding a “none of the above” option to a list of checkboxes
I disagree with this view. You should consider mental models and visibility. Checkboxes, by convention are boolean controls and can be composed into a multi-selection group. That's what users expect. Any 'behind the scenes' logic is invisible to users. That is, if you put a user in front of a wireframe and ask them how this would behave (their expectations - which we all build while interpreting an interface) they could easily be confused. The controls imply one thing, the labels - another.
Nov
13
comment Adding a “none of the above” option to a list of checkboxes
@AdamStone You can always provide a 'Mark all as No' button.
Nov
13
comment Adding a “none of the above” option to a list of checkboxes
I'm pretty sure the client requires explicit action for the 'No'. That's why I though more 'No's would mean for the client less 'I didn't pay notice'. It's an example where business goals win over usability.
Nov
6
comment Dropdown or Sliding for choosing
@Crissov Oh, OK then... A guideline isn't quite a rule of thumb...
Nov
5
comment Can users login and register via the same form?
See ux.stackexchange.com/q/2069/16924
Nov
5
comment Dropdown or Sliding for choosing
@Crissov, could you provide a reference for this rule of thumb please?
Nov
5
comment Accessibility (color contrast) of report inappropriate function
Could you please clarify the following: 1) What's the relationship between the (tags?) images and the question. 2) How do you know that fail the AA compliance? 3) What do you mean by 'acceptable'?
Oct
27
comment Client wants to remove footer on certain pages, should I?
I like Jakob Nielsen, I really do, but SEO has it that on many sites footer links will be marked as rel=nofollow. Footers also add visual noise that is not always justified. It really depends! Anyhow, really agree with the attitude on the last paragraph; well put.
Oct
21
comment How long does it take a user to find and click an object in a list?
@MrHen In addition to Fitt's Law mentioned by Mervin, you may also wish to look into the various time constants various GOMS frameworks use. And I'd also look at Hick's Law, which is already linked within the link you have shared.
Oct
15
comment Is this a cascading list? And what would be an alternate or better pattern to use?
As a side comment - if the 'edit' button enables form editing, there really shouldn't be a save button - the edit button should change to save once pressed. Can you save without pressing edit?
Oct
15
comment Options to place “now” for a date input
Oh I see. But by that you may miss a need of users to enter something that is around 'Now', like 'a day from now', 'in 5 minutes', etc. I don't know what the fields are populated with to begin with, or what is the business logic behind the feature, but perhaps such user need exits?
Oct
15
comment Options to place “now” for a date input
I don't understand why are these checkboxes - it isn't state they deal with it is action and so they should really be buttons. What happens when the user uncheck the box?
Oct
15
comment Text articles vs Video tutorials
In some cases (like how a piano key works), there is importance to visual continuation. With text + images, the sequence is chopped and some information has to be filled in by the brain. Anyhow, I've extended my answer with an explanation on multimedia learning theories.
Oct
14
comment Alternatives to tooltips in tablets?
I'd argue you can't treat mouse and touch based devices as one - if you're trying to create a catch-all design, one platform will have to suffer (obviously depending on the actual design, but this applies to any application with tooltips). From a usability perspective you should tailor the design to the device it'll run on, or simply accept you can't get it right on all.
Oct
14
comment Alternatives to tooltips in tablets?
In the case of a calendar - using the (desktop) date-picker already means you are not using the right pattern for touch. Date picking on the iPhone, for example, uses a slot-machine style. Unlike the desktop version, you first choose the date, then press 'select'. This allows exposing additional information (like showing 'thanksgiving') before the user made a selection. So that's how things should work on mobile. I still don't feel that answers the question title though.
Oct
14
comment Alternatives to tooltips in tablets?
Welcome to UX.SE; No hover with touch interaction - that's a given. I feel the question is too broad because any solution will have to be specific to the actual problem it comes to solve. That's what UX is about. A general solution such as "Have a mode via a toggle button with which a tap reveals some help or additional information" would only work for some cases, not others. So I think had you provided a real use case (with user needs, mockups and problem-specific information) you'd get much better answers.
Oct
14
comment Repeating Sidebar and Nav titles within the Page view
I wonder where you got the image from @Mervin - I doubt the page below will actually produce an F pattern!