Affordance is a property of an object that naturally indicates how the object can be used.

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1answer
496 views

Is the asterisk the common symbol to mark fields as required in all languages?

I did some research but didn't find an answer to it. The asterisk seems to be a common symbol on the web for marking input or user interaction as required. Most likely it has it's origins in print ...
8
votes
3answers
348 views

App icons borderless or on a button?

In an app, when using icons, we can have place it on a button, or have the icon borderless. I would think that having it on a button gives better affordance, but it seems that many reputable ...
9
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6answers
541 views

Are multiple entry points good or bad?

My example is a web-based application, but I guess this could go for anything: Multiple entry points for the same action, good or bad? My example: Adding a product against a supplier (vendor). This ...
7
votes
6answers
713 views

How do you indicate that a UI element affords sliding, without using an actual slider?

I'm designing an interface for an Android app that would allow the user to control the pitch, tempo, volume, etc. of some music playing in the background. Here's what I've sketched so far: I ...
3
votes
1answer
137 views

How to indicate that part of a chart can be re-scaled or redefined visually to present a clearer, and/or more specific representation of the data?

I'm wondering about several issues I have with drill down behavior on graphs: How can we visibly show that a certain graph is "drillable" (affordance issue). In more details: On a single chart, how ...
4
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3answers
317 views

Does a visual “Active” state on a button improve affordance?

I've noticed some web sites neglect adding an "active" state on certain buttons or links; the visual effect when the button is pressed, usually making the button look like it's being pushed in ...
11
votes
8answers
443 views

How do I indicate that mutliple sets of radio buttons are mutually exclusive?

I have a panel where a user selects a camera to view from a location so they can load images from that camera. They can only load images from one camera and one location. Because of this I used radio ...
6
votes
3answers
459 views

Affordance for resizing a panel

The standard way to sinalize the ability to resize is with the operating system's own mouse pointer, the double-pointed arrow in the direction you are to resize (horizontal, vertical or diagonal). ...
4
votes
7answers
284 views

How can I lead users to and use an unusual navigation

So, I'm making someone a high concept website. Basically, there's one of those old fashioned television sets with circular nobs, like those on a stove, to change the channel. You turn the nob, it ...
9
votes
8answers
584 views

How can I make it obvious that a page element is to be hovered over?

On my webpage I have five boxes containing the names of each step in a five step process. When the user hovers over one of the boxes, it expands and shows text explaining that process. How can I ...
11
votes
5answers
1k views

How broad is the definition of affordance?

While discussing the need for affordances to be consistent, comments between me and JeroenEijkhof indicate we don't have a similar interpretation of the term 'affordance'. I claimed that something ...
7
votes
5answers
811 views

Signifying to user that field is editable

I have a grid that has a bunch of data. Some of the fields are editable and cause a postback updating the data. What are the best ways to show that to the user? i.e. Is there a best practice for how ...
14
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3answers
1k views

Why does * (asterisk) mean Required on a form field

Watching a video from DIBI conference and Jared Spool mentions the mysterious origins of the asterisk (*) on a required form field. Where does this come from, why does an asterisk mean required?
4
votes
3answers
560 views

Which is the best way to display priority in a large list of items?

We have a list of approximately 50 items. The item at the top takes highest priority, and the item at the bottom takes the least. These items can be re-ordered by selecting the item and clicking the ...
5
votes
2answers
539 views

What affords scrolling?

Besides the obvious: Scrollbar Touch interfaces (especially mobile ones) A sign saying "You can scroll here you know!" This for a desktop application.
31
votes
11answers
3k views

How to visualize the possibility of drag'n'drop?

My web application contains a list of elements, which can be sorted by drag'n'drop. How to visualize this feature to users?
12
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3answers
691 views

What is the reason for Concave round buttons in Elevators

What is the reason many elevators have concave shaped buttons. Like this: Any special reason behind this?
2
votes
3answers
663 views

Column sort-order specifier/indicator

EDIT: I should have mentioned the page I'm talking about. On a page that's just one humongous table, I have an img in each <th> that tells the user how the column is sorted; and he can click the ...
2
votes
1answer
257 views

Best way to communicate the action of a non-button control

Question summary: I'm wondering what are some recommended approaches for communicating to the user what will happen once he clicks on an object, in the case that it's not possible to spell out the ...
5
votes
4answers
188 views

Should same page interactions be underlined with a dashed line?

Should there be a visual distinction between a link and a AJAX like interaction? I quite often see that dashed underlining triggers an action on the same page. Is this a new convention? Would that ...
10
votes
1answer
265 views

Improve affordance of “mark as answer” on StackExchange

It seems like many new users to StackExchange don't know that they should mark a response as the answer. I often see pissed off veterans shouting "you're not going to get any help if your accept rate ...
6
votes
5answers
269 views

Order of prices and effects on sales

Consider the following list of prices: Plan A Plan B Plan C ------ ------ ------ $50/mo $40/mo $30/mo Is it more effective to ...