refers a certain state an application may be in at any point during user interaction

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2
votes
5answers
203 views

Should a device charger provide a visual indication that it is charging?

I just bought my brother an iPad and noticed there isn’t any visual indication on the charger when it's in an active charging state. Why wouldn’t a designer provide some visual feedback? ...
1
vote
1answer
60 views

How can a webapp show whether polling is on or off, without looking like it is stuck?

ACRA's web client polls a server every N seconds. Polling can be on or off. The UI is currently a clickable GIF image: when polling is on when polling is off Clicking the icon switches on/off (on ...
7
votes
5answers
324 views

Should a user be prevented from making an invalid selection or denied with an error message after the fact?

In my UI, there is an icon for ‘Open File’. When user clicks this icon, a normal file browser window opens. The user selects a file by browsing through the computer. The user should only select ...
0
votes
2answers
156 views

Looking for a HCI term for when a system has several modes of operation

I'm looking for a term which I'm pretty convinced exists but I have forgotten. Roughly, it describes the fact that a system or tool has several modes of operation / states and behaves differently in ...
0
votes
3answers
230 views

What is the best way to show the user that their changes have not been saved yet?

I have a form with the normal sets of controls (checkboxes, select dropdowns, text input, etc) and i also have a table inside of the form so it looks like this: to Add / Edit items in the table, ...
1
vote
1answer
63 views

How to organize list based content, newest to oldest or vice versa?

In our application we have a ticket tool that allows you to create simple to complex tickets, and start a comment stream for collaboration. Current UI: Currently we have the UI structure with ...
1
vote
2answers
62 views

reducing automation effects using design

I'm involved in a project where user actions are translated to automatic flow. Previous state: the user had to read the info, analyze it and take an action. Current state: the user reads a summary ...
1
vote
2answers
216 views

What are good idle vs non-idle (busy) state icons [closed]

I'm not really sure what an intuitive idle state and non-idle state icon could be. I was thinking an hour glass would be great for non-idle (busy) state. Does anyone have any good suggestions or ...
3
votes
4answers
370 views

Is it ever acceptable to break extremely common interaction functions?

There is an adage in web UX which goes 'Don't break the back button' which refers to the fact that the back button in a browser is such a consistent function that to create a situation where it's ...