information displayed when an unexpected condition occurs, usually on a computer or other device

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2
votes
2answers
123 views

Replace polling with clever simulation

On our website, users can type in their phone number to verify it. We initiate the call and pop up a verification code on the screen. However the dialog box stays up indefinitely, until the user ...
15
votes
3answers
2k views

Periods at the end of a sentence in alert message

How to classify what type of messages should've a fullstop/period and what should not? Because there are certain error/warning/success/info messages (be it a dialog, banner, contextual or ones in a ...
4
votes
2answers
127 views

How should refer to data validation that happens mid-process?

I'm developing some guidelines and I can't work out what to call the type of data validation that takes place as the user enters data. i.e. an error message appears as soon as the field is unfocused. ...
7
votes
5answers
5k views

Disabling submit-button until the user has completed the form

How do you think about disabling the submit-button until the user has completed the form or the required fields? I find similar questions here on ux.se and somebody answered that the user will think ...
4
votes
3answers
420 views

Where should a 404 page link back to?

This might be a no-brainer but I can't decide whether the 404 error page should link back to the page, from which the user has come, or should it direct to the main page where the user can navigate to ...
11
votes
3answers
514 views

Should we be optimistic or pessimistic with UI updates on AJAX requests?

We are discussing in our team how best to handle UI updates after a user does something to cause an AJAX request to the server. Here are options we are considering: Instantly update the UI and ...
6
votes
7answers
312 views

How to communicate foreign key constraints in a business application?

I have a business app with various business forms where users edit data. When a user deletes a record - it shows "FK_ABC_AA.. constraint violated, etc." I want to do better than that and tell the ...
8
votes
4answers
244 views

Is there ever a circumstance where the user should be notified of a user interface no-op?

The headline may be a bit confusing, so here's a web example (although this question is equally applicable to desktop applications): I open up the same eBay listing in 2 separate tabs of my web ...
8
votes
1answer
307 views

Message Fade Timing

Sometimes one wishes to display a message for some time before removing it in some way (in my case fading). When implementing this idea, a problem arises: how long should the message remain fully ...
24
votes
2answers
5k views

Is the color red really appropriate for form validation errors?

It seems to be taken for granted that the color red is appropriate to highlight errors. In the case of serious system errors, I agree. However, I'm having doubts that it's the right choice for user ...
2
votes
3answers
146 views

Guiding the user through your page

We have a simple administrative page for managing stores open and close dates. Upon initial rendering, the page is readonly. Checking a box labeled edit in the top right of the page, enables the ...
26
votes
4answers
27k views

How to create a useful 500 internal server error page

I'm trying to create a useful HTTP Error 500 Internal server error page and the recommendations I have found and the live examples I have stumpled upon use a very simple layout. They basically ...
4
votes
3answers
287 views

Turn 403s into 404s?

I am currently working on a web application where there are different levels of access. Users can get access to some areas of the application, but may not be allowed to access another area. The ...
8
votes
3answers
187 views

If there is a known error in a feature should we warn our users or just turn off the feature?

In this example, Facebook Connect (technically Facebook Login) has an open bug that prevents IE8 users from connecting. It send error messages, and it isn't clear to users that the error is with ...
5
votes
3answers
171 views

How do I inform the user a component has stopped working?

This is my design challenge: The idea is to have a separate component integrated into a website, displaying data retrieved from another system. When a problem occurs with this other system, we are ...
6
votes
3answers
336 views

What errors should users never experience?

I have come up with this question for 2 reasons. Not all errors can be avoided. For example login information which might cause program to throw unhanded exception if login information is not ...
4
votes
2answers
369 views

How to notify the user of a system error (out of their control)?

What's an easy-to-understand error message for situations where the error is a system error (out of the control of the user and cannot be fixed by the user)? Here's a few that I came up with, but ...
5
votes
3answers
701 views

best approach to notification/error message notifications

in the application i'm working on, there are 2 types of notifications: Confirmation messages (successful action results) and Alerts (unsuccessful action results/errors and Session expiration prompts). ...
2
votes
7answers
179 views

Canceling/limiting a user's search

I'm developing a reporting application where a user can make some searches on our database against an extremely large data set and display them in a table on a web page. One of the searches has the ...
8
votes
1answer
314 views

How to handle out-of-range data in a realtime plot?

Background I am working on real-time data acquisition and visualization software for a scientific measurement device. The software gathers data from the device, and plots the data in real time. Data ...
-1
votes
4answers
86 views

Breaking down everything on a single error, or just break down that part? [closed]

In PHP, if a module of your site has a problem, you can turn off error messages, so that only that module won't be displayed. This means for example, if you have a weblog based on PHP, and archive ...
17
votes
2answers
3k views

Recommendations for good resources on writing good error messages

Writing good error messages which help users understand how to use the system is difficult. Often we get bug reports stating "Error message x is confusing" which usually sparks a long debate in the ...
6
votes
2answers
515 views

What image and message use in the “Not found” page (404 error page) [closed]

I've seen the robot of Google, the creature that has Github. I think that is question of imagination and what kind of data manages your web app to design a custom image and the message to show to the ...
6
votes
3answers
165 views

Feature is only available on newer device

Let's say you have a software feature that is only available on a newer browser, operating system, or physical mobile device. Some examples include: A camera is required to upload photos in an app. ...
10
votes
3answers
319 views

When should a messagebox be used?

When I started in programming, there was a manual with a number of GUI guidelines. The input fields were color coded. For instance, a mandatory field would be yellow and an ordinary field would be ...
11
votes
5answers
1k views

What will be the Best notifications and error messages?

As a UI architect, I am always wondering about the best format to display errors and notifications to users. Which of the following examples is the best format? Name is required Name cannot be ...
4
votes
2answers
504 views

Error Message Advice (for asynchronous/background tasks)

We have a web application which currently performs a number of intensive, time-consuming tasks. The initial design didn't really cope with the levels of information we're now dealing with and we're ...
9
votes
4answers
898 views

What is the best way to display date validation errors?

I am performing date validation on several forms. This validation includes making sure a date does not fall on a weekend, does not fall on a major holiday, is at least 3 business days from the current ...
12
votes
3answers
1k views

Best place for placement of error messages on a form (both generic and specific) [duplicate]

I'm working on a simple registration form which, when invalid data is entered, will display both a generic error (e.g: "There is an error on your form") and also specific errors (e.g: "This is not a ...
7
votes
3answers
700 views

How to display login/register errors?

I have a login form and a register form on my website in this format: Username: [ ] Password: [ ] Email: [ ] There are multiple ways to approach informing the user of ...
6
votes
1answer
1k views

Standardized (web) application error messages? [closed]

I'm in the middle of coding a bespoke CMS for a company and if there is one thing I hate it's coming up with good copy for "flash" messages (short messages that provide user feedback.) I know how ...
4
votes
4answers
902 views

Best error message to display when too many users logging onto web system

I have a website that started experiencing issues when too many people are trying to log into the website at the same time (usually at the start of the business day). Are there some examples of or ...
9
votes
4answers
462 views

Error message that always appears in the same place

Is it okay if error messages always appear in the same place on a website? I know the right thing to do is place errors inline, close to where the error occured. But there's hundreds of errors that ...
5
votes
2answers
199 views

Error dialog for several parallel operations

I have a situation that I'm not sure how to handle, UI wise. Our program initiates several parallel and threaded operations. Each of these operations can fail thus requiring an error dialog. The ...
8
votes
12answers
591 views

Bulk actions: what to do when not all items support an action

Picture the following scenario: user selects a bunch of items, and the 'bulk actions' box appears; user selects an action that not all items support (for one reason or another). What do you do in ...
8
votes
4answers
1k views

Error-message to indicate invalid data has been entered?

Sorry for the subjective question.... I'm working on the micro-copy that appears on a web-form when a user submits invalid data: eg: invalid date/time. We've used inline validation and date time ...
5
votes
5answers
3k views

Is red text ever acceptable for use in non-error content?

I've always gone by the rule that red text should only be used in displaying error messages. Can anyone show me any usability blog/book excerpts that prove or disprove this rule? What are your own ...
7
votes
6answers
1k views

Handling multiple “alert” popups ?

An iPad application we are building throws an alert window for various error conditions. We are considering building a custom UI for the alerts since the default alert window is fairly annoying. My ...
5
votes
1answer
246 views

Best way to handle a system failure (not the user's fault)

In my application, we're very dependent on a service to provide some information that the user can interact with. It's possible that the service could be down, or in some invalid state to where any ...
41
votes
14answers
2k views

How do I get users to read error messages?

If your intended audience is nontechnical you find yourself at a severe risk that your users will plain ignore the carefully worded error messages, either staring in shock at them, calling and yelling ...
22
votes
13answers
1k views

Is it better to prevent a forbidden action or display an error/explanation message?

There are multiple examples, so I'll pick a specific one to focus the question. Let's say a user can have specific characteristics (or permissions): Admin, Virtual, External, Financial, etc. To ...
3
votes
2answers
271 views

In a web application, what can I do to allow error messages to be efficent and functional?

While alerts force users to react, sometimes the widget gets lost behind other windows and then blocks the whole application. What other ways can be used to make sure a user will take notice of an ...
29
votes
12answers
855 views

Blocking IE6: Deny outright or warn of issues?

We're looking at (finally) retiring IE6 support. I've always been a big fan of graceful degradation but we're really pushing ahead and trying to embrace features that we're simply not going to want ...