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3 votes
1 answer

Labels for a multi-(multi-function)-button wall switch

I bought a ZWave wall switch that looks like this : Classy eh? EDIT thanks to @Darryl it has 4 independant buttons! This wall switch responds to 4 actions for each of its buttons : single press ...
Goufalite's user avatar
  • 145
8 votes
2 answers

Why can't you turn off your iPhone with Siri?

With the help of Siri (voice interface), people can have a call, add tasks, have a search. I give a command for turning off my phone but Siri said that "It is beyond my skills". I tried again and Siri ...
Abektes's user avatar
  • 5,583
4 votes
4 answers

Disabling command vs error message

In the diagram editor I am developing users can delete most of the nodes in the diagram, except a central node that is treated specially and can't be deleted. To block the user from deleting this node ...
vainolo's user avatar
  • 393
12 votes
6 answers

How many steps should a checkout process have?

I'm currently auditing an e-commerce website, and I noticed that the checkout process has 3 steps: Login/registration Delivery address/payment Verify/place order The page of the step 2 is quite ...
user avatar
1 vote
2 answers

How to design user friendly aliases for command line interface element identifiers?

I've run into this problem, i'm making a CLI that enables the user to make bookmarks, notes or comments on elements. Each element has it's internal unique identifiers and usual entity stuff. The ...
alfa64's user avatar
  • 241
11 votes
4 answers

Is it better to use a positive or a negative command for a button, checkbox, etc.?

I have some checkboxes that should include/exclude some content on some reports. But I am not sure if I should use: Include all items or Exclude unused items for the text of the checkbox. What ...
richard's user avatar
  • 3,224
17 votes
4 answers

Save vs Save & Exit

We're designing an application for creating personalized photo books through a Flash-based interface. When the application first opens, we display a dialog encouraging the user to give their project a ...
user avatar