Questions tagged [response-time]

the time it takes a UI to respond to an action by the user and the effect this has on UX.

Filter by
Sorted by
Tagged with
9
votes
2answers
8k views

Activity response, startup times

I'm interested in what is a reasonable start up time or behavior for applications on smart phones. This is simply when you click an icon on the launcher (as it may be called on Android) to the moment ...
9
votes
3answers
2k views

Assume success and show response immediately or wait for a response from the server?

All over my CMS I have buttons that toggle something on or off by sending an ajax request, updating the db, and then changes state and value of the button on success. Very basic "ajax" and "toggle". ...
8
votes
4answers
389 views

How can I maintain usability on a slow system?

Obviously a huge part of a positive UX is a fast, responsive design. The software I work with (Electronic Medical Records) is sometimes used on sub-standard devices (e.g. ancient desktop PCs) or in ...
8
votes
2answers
8k views

Benefits and drawbacks of modal windows

I'm working on a web application and am a little stuck trying to figure out how I should implement signup forms, login forms, contact forms, and payment forms. I can implement all these in either: ...
8
votes
2answers
843 views

How to load long-time-taking content?

We have a page that takes very long to load (approx. 15 seconds, might be even more for some clients) as the data it generates is heavy and slow. While we are trying to directly speed it up, 15 is ...
8
votes
5answers
71 views

Recording website speed

Are there any excellent sites out there that evaluate a website's loading speed at different levels of Internet connection? I have used this site in the past but the information is out of date and I ...
8
votes
3answers
2k views

Does a “faster” loading indicator make website/software seem faster?

While checking how a site works on Internet Explorer, I noticed that the page loading indicator spins a lot faster than in other browsers. Also, the iPhone uses a noticeably slower activity indicator ...
8
votes
3answers
1k views

Load Fonts First or Last?

Fonts compete for available bandwidth and out of necessity have to be referenced as external files, rather than being inlined as can be done with essential CSS to avoid a FOUC (Flash of Unstyled ...
7
votes
3answers
286 views

How slow can an app be to keep feeling responsive?

I'm creating an editor to write requirements and I want to give suggestions to the user about what to write. How fast do I've to present the suggestion so that it feels responsive to the user. (...
7
votes
2answers
493 views

How to display UI operation delay

I am implementing some UI functionality. I have a button that perform some short or long (time) action. I have implemented so logic: if action's execution time more then some in milliseconds, then ...
7
votes
2answers
277 views

Dynamic search results - a la google?

We've a few apps where I work that make use of content search. EG, you can search for specific text within a document held in our system. One thing we've been looking at is having the search start as ...
6
votes
4answers
201 views

How should cancelled animations behave?

How should an animation behave when it is cancelled/changed? For example, let's say I have a button in my application that triggers the visibility of a tool panel. When the panel is shown, an ...
6
votes
4answers
1k views

How long should the user wait before providing reassurance?

I have an application with user login. When a user logs in for the first time, I show them a screen similar to this while the login process completes: The user's access must be validated before they ...
6
votes
2answers
4k views

What's reasonable time lag before displaying a timeout message?

We're developing an online application and wondered what is the average/expected/reasonable about of time to make the user wait after form submission before we say "Hey sorry, we think there's a ...
6
votes
2answers
1k views

How Should Tabbed Content be Loaded?

There are several approaches to loading content inside tabs. For example, Load all content initially, then just manipulate the DOM to show/hide tabs Load only the content of the active tab initially, ...
5
votes
9answers
2k views

On adding fake delay, to, network delays

Consider an app, where there's a function (perhaps a button, or, when you hit return to send some text, for example). It results in a network connection, and there will be a small delay while the ...
5
votes
1answer
489 views

Can we quantify how much latency affects user performance?

Our company has a field office that is dealing with high latency and low bandwidth issues when working with our document management system. I've been asked by the users in that office to solve this ...
5
votes
2answers
2k views

Why is form submit preferred over AJAX for login forms?

Google, Facebook, Twitter, Amazon, and Stack Overflow, among many others, use form submits with full page reloads instead of AJAX on their login forms. I saw this question (When should I use AJAX to ...
5
votes
2answers
227 views

When to commit user data (a humble request from a systems guy…)

So, I am a systems programmer working on a UI (bad idea, maybe, but I think I do ok all things considered). Anyway, my program is an interface to a service running on a remote machine which controls ...
5
votes
3answers
458 views

Managing an App's Loading Time Expectations

I was recently asked to come up with a framework to benchmark loading time expectations based on the tasks being performed in the app. I found that there were three categories in which I could define ...
4
votes
4answers
7k views

Why do some automated phone systems use a typing sound effect?

Sometimes when I call a company's customer service phone number, an automated phone system answers. These systems will ask me questions to identify the type of information I am seeking, the type of ...
4
votes
6answers
635 views

How can I improve the perceived performance of a desktop application?

We've build quite a 'large' and regrettably slow windows application for various financial planning business steps. I'm currently trying to improve the performance of the application by slowly ...
4
votes
4answers
1k views

Behavior of auto-scrolling gallery

There's a small corporate website that offers a number of services. On the homepage there's a showcase of the services offered. There's a strip containing a number of items in reduced form (small ...
4
votes
2answers
2k views

When should I use an ajax loader? When I wait more than 1 second, 2 seconds or 3 seconds?

In the web app I am working on right now we'll have some pages that will perhaps need more time to load. When should I use an ajax loader? After 1, 2 or 3 seconds?
4
votes
2answers
245 views

Should options in a droplist be sorted by popularity or alphabetically?

I'm building a flexible search tool where the user can put together a query against one or many of a long list of fields to pull back a list of results. I was considering a TFS like query builder ...
4
votes
3answers
295 views

Which UX guidelines exist for mobile app performance?

I'm doing the UX for an app that communicates with bluetooth devices. Unfortunately, all bluetooth traffic is routed through our cloud backend which occasionally makes the app slow. To deal with this ...
4
votes
2answers
345 views

Empirical measures of performance

Other than time on task, error rates, memorability and use of help; what other empirical measures of performance can one measure an interface by? Please expand your answers with real-world experience,...
4
votes
2answers
389 views

Should a flash of unstyled content (FOUC) be addressed by hiding everything until it all can be displayed with styles?

Flash of unstyled content: You load the content of a web page. You load the styles of a web page. In the time period after (1) but before (2), the content is being displayed without its proper ...
4
votes
3answers
2k views

Examples/Opinions on using (Facebook-style) placeholder/dummy content during wait/spinner processes?

I've read some articles recently touting Facebook's use of dummy content and text and image placeholders during load processes, stating that using a spinner wheel w/messaging alone can increase bounce ...
4
votes
1answer
221 views

UX in Optimisation and Simulation

As defined by IBM: "[Optimization and Simulation products provide users with help creating] the best possible plans, explore alternatives [and] understand the trade-offs". Based on the ...
4
votes
2answers
241 views

Showing “in progress” in a full AJAX application when we don't know where the new content will be placed

I am building a web application that is fully AJAX enabled. Clicking a link will load the page from the server and some tricky javascript will determine which parts of the page will require replacing. ...
4
votes
1answer
2k views

Are google plus notifications slow? [closed]

I'm not really a social network person but the google+'s notifications are terrible slow compared with the facebook's notifications. When I enter to the facebook's home page notifications are the ...
4
votes
1answer
334 views

UI Guidelines when delivering application over Citrix

I'm after some advice regarding some guidelines to consider when deploying applications over Citrix. My company is going to be using Citrix in the near future. We have suppliers who deliver our ...
4
votes
1answer
785 views

Is it okay to put a minimum delay on UI changes?

I’ve been writing mobile and web applications for a while. I mainly use async tasks, two way data binding etc. I’m updating / changing UI as data arrives from server or internal services. I have a ...
4
votes
2answers
129 views

Do short response times increase errors for complex tasks?

I am currently dealing with a summary of "Designing the User Interface: Strategies for Effective Human-Computer Interaction (5th edition)" by Ben Shneiderman & Catherine Plaisant. In ...
3
votes
1answer
1k views

Loading Times / Breaking points

We all know that a user is not going to wait forever for a website to load. Given there are certain factors and circumstances that can apply to this, is there a breakdown of users stages/breaking ...
3
votes
2answers
1k views

Best practice for a property inspector that also allows users to edit

I am creating a UI that allows users to select and edit items and it works something like the following: A user selects an item An always visible property panel is populated with that items metadata (...
3
votes
3answers
331 views

How much time is lost by waiting for GUI?

After asking the question Will faster GUI always make one more efficient?, I understood that there is a lower limit to the amount of time lost due to the GUI not responding. My interpretation of the ...
3
votes
1answer
2k views

Do top, or left aligned field labels perform better at form completion?

I have designed these two forms and would like to know which would be more effective at conversion i.e form filling up. Here's the first one which I feel is more effective reason being the separate ...
3
votes
2answers
1k views

Wait cursor and progress showing time for long running tasks

I have a long running tasks in my desktop application. Sometimes tasks complete in 1-2-3 seconds and it does not sense to display big progress bar to an user because of the showing progress panel time ...
3
votes
2answers
97 views

Should input be accepted after confimation (or other actions)

I often find myself in the following workflow: Enter user name Enter password Click "OK" (or enter key) Wait for response Discover the checkbox next to OK-button Think: "Bugger! It would be nice to ...
3
votes
3answers
128 views

What is the concept of a brief period before providing a signal called?

This question is illustrated by my personification of 3 microwave ovens: Microwave 1 is rude. It beeps when time expires and keeps beeping even after I open the door. It also beeps to cancel settings ...
3
votes
2answers
383 views

How does providing feedback influence quiz performance?

Working on the design of an online quiz tool, I'm considering what would be the best way to give feedback to the users. It's about multiple choice tests used for knowledge testing of health care ...
3
votes
2answers
126 views

How do you determine a reasonable minimum window of time between actions as to prevent flooding?

I'm planning some code that will prevent flooding for a project I'm working on. I'm wondering, how do you determine what interval of time is necessary to wait in between actions? I've seen this ...
3
votes
1answer
188 views

Designing interactions and UI for synchronous action with long processing time [duplicate]

I have a synchronous process that is trigger by a user action and the process can take more than 10 minutes. While it's being processed, the previous UI that user triggered from and the previous data ...
3
votes
2answers
99 views

Pre-caching new assets before relaunch

We are moving to a new web server shortly, and are also optimising our approach to scripts and styles. This means, among other things, that we have new assets for users to download - and while our ...
3
votes
1answer
464 views

Letting the user wait for shorten a link?

I have an application where I show a list of news. These news can be shared by the user (simple share-intent you can see in almost every android-application). However, I don't want the user to send ...
3
votes
2answers
169 views

Rate per hour vs overall budget?

This is the scenerio: The customer fills a web form, requesting for basic information such as description of what he/she needs done, and the budget or rate per hour. This can be analyzed by testing ...