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

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0
votes
2answers
125 views

How much is the ideal time for returning a webpage? [duplicate]

I know that the actual time a webpage takes to load largely depends on the user's internet connection, but there is a part of this loading time that I control, that is the time consumed by the server ...
2
votes
2answers
490 views

Usability vs performance vs Look and feel - 2D vs 3D Interfaces

I read an article about 3D capabilities increasing but UIs getting flatter. Also something similar is suggested here. I am not talking in terms of any particular company , OS or platform, but in ...
20
votes
5answers
5k views

What is the expected timeframe of a double click?

In the web application, the user draws a polygonal area on a map each click setting a vertex. A double click allows the user to finish the area. Due to technical circumstances, I have to detect double ...
1
vote
2answers
107 views

Application startup time [duplicate]

Is there some science going on that tells us lousy developers what users expect from an enterprise desktop-application in terms of application startup time? My application uses a splashscreen that ...
3
votes
2answers
73 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 ...
7
votes
2answers
4k 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: ...
181
votes
11answers
40k views

Why do users click randomly and rapidly when an application hangs?

This question came to me when I witnessed a collegue's behaviour on an application freezing due to a large operation. And it's something I've certainly done myself. An app freezes for more than a ...
9
votes
4answers
2k views

Amount of Time To Determine a User Has Stopped Typing

I have a filter form for a list. One of the fields is a text search field. When a user types in the field, I wait until the user has stopped typing for a half second (500 milliseconds), and then ...
7
votes
3answers
218 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. ...
10
votes
3answers
3k views

Why do websites use “you are being redirected…” pages?

Frequently after logging in a website - specially old ones - I see the following: Welcome! You are being redirected, please click here if your browser does not redirect you. And similar pages ...
2
votes
3answers
284 views

Pagination design, reload entire page or reload just the section with data

I am building a search website, which will have results displayed using pagination. I am trying to figure out the best way to implement pagination of these results. User searches for abcd in my ...
7
votes
3answers
2k views

How fast does autocomplete need to be for a good user experience? [duplicate]

Has there been any study into how quickly autocomplete suggestions need to show up for a good user experience?
13
votes
6answers
2k views

If you can't improve loading time, is distracting the user a good technique?

On several implementations I've worked with, loading times can be as high as four seconds for the start page. When all reasonable options are done, is it possible to distract the user to make the ...
1
vote
0answers
99 views

Testing cross-platform touch performance [closed]

I am at a phase of a project where I need to establish a proper testing method where I can measure how well the touch performance on different smart devices (tablets and smartphones). My primary test ...
0
votes
4answers
289 views

Showing a loader for longer than required because it looks good?

Strange question this :) Basically I have a website whereby lots of the loading/posting to a database is done with ajax. At the moment there are no loading screens. As such if something breaks the ...
1
vote
4answers
809 views

How should I display a “please wait” animation?

I have to create a "please wait" page on our website. I would think you usually put the words "please wait" with some kind of spinning animation, but do I really need text? Doesn't an hourglass or ...
7
votes
2answers
3k 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 ...
29
votes
7answers
2k views

How patient are users at wait dialogs?

What is the length of time the average user will wait at a wait indicator (i.e. a spinning circle, beach-ball-of-death, egg-timer) before they think something has gone wrong? If anybody can point to ...
4
votes
1answer
187 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 ...
1
vote
4answers
60 views

Terminology: View Help or View Documentation

What would be the right way to phrase a link in a complex dialog? The link provides information related to the exact meaning of the options and how to use these options. The choices are: View ...
9
votes
8answers
1k views

What to display while waiting for a process (4-5 seconds) to complete?

We realized that in some cases the user may be waiting up to 4 or 5 seconds (depending on connection) for their form (or some action) to be processed. The form involves getting data from other servers ...
9
votes
1answer
600 views

Studies showing the impact of response time variability on user experience

Have there been any studies, or results, focusing on the impact of variability in latency of response times on the overall user experience? I'm aware of the research on the "generally accepted" ...
14
votes
3answers
430 views

A single, long load - or multiple short loads, which would provide a better experience?

I have a very large, modular web application. When it starts I can do things one of three ways: A moderately long load time (about 60 seconds) to fetch all of the modules from the server (presented ...
2
votes
5answers
412 views

Speed vs Quality UI Pattern

I'm trying to come up with a good disposition of UI elements to help depict Function Speed vs Quality. Can anyone point me in the right direction? Are the Labels Right / Informative Enough? Is the ...
4
votes
1answer
299 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 ...
1
vote
2answers
176 views

Ideal file size for large backgrounds

Currently I'm developing a widget for a client, which has a step by step wizard style of filling using javascript. However, their widget for desktop would use 2 large backgrounds to fill up the entire ...
104
votes
16answers
27k views

Is coffee a good excuse for a slow application start-up time?

I was dragged into a meeting with a client to consult on any usability issues as we watched a user performing day-to-day operations with a software application. The first thing that happened was that ...
5
votes
3answers
382 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 ...
1
vote
1answer
640 views

What is an acceptable delay for the user when waiting for search results?

Is there any research that shows how long a user is willing to wait for search results to come back before they give up? I know Google has made searching instantaneous for people, but barring general ...
1
vote
0answers
144 views

How to smoothly hide loading message and show the fetched data [closed]

How to smoothly hide loading message and show the fetched data. I am using jquery to make an ajax call to get some data in meanwhile I am show user a loading gif, once the ajax call is successfull i ...
4
votes
1answer
381 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 ...
4
votes
2answers
205 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. ...
3
votes
1answer
777 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 ...
4
votes
2answers
175 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 ...
8
votes
3answers
974 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
755 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 ...
14
votes
3answers
3k views

How to measure UI lag on computer?

Are there any tools available to help measure the UI lag of a given application running on a given computer? There are plenty of guidelines out there as to how "fast" a UI ought to be, but how can I ...
3
votes
2answers
143 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 ...
2
votes
1answer
145 views

What is the effect of a site that takes time to close?

Facebook, on my setup (OS X, Chrome) takes about a 1 second to close. I can imagine that there could be some stuff that has to be done, just before you close the browser, and that is taking up ...
6
votes
3answers
266 views

Showing the status of an action on a button

I have an application that can synchronize content between a website and a social network. with a button you can turn on and off the synchronization. the user needs to see the status (sync on or off) ...
1
vote
1answer
142 views

Desktop GUI loading slow

I am developing desktop based GUI (single form) using wxPython and loads it using remote citrix access from client private network. Suppose, the GUI has certain group of select and text boxes which ...
23
votes
8answers
2k views

How can I distract / entertain people in an app while waiting?

We should do whatever we can to make our apps and websites as fast as possible, but there are some times when there is nothing that we can do to speed up some process, and so our customers just have ...
8
votes
4answers
323 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 ...
26
votes
10answers
1k views

Should aspects such as page render time or time taken to retrieve results be considered part of UX?

I was just reading this very interesting article on Fast Company about how How One Second delay Could Cost Amazon $1.6 Billion In Sales annually. To quote the article Amazon's calculated that a ...
40
votes
7answers
3k views

Would intentionally slowing down UI help to increase sales on shopping sites?

I've noticed that iTunes store is always slow, at first I thought it's just because iTunes is a bloatware (which it is, on both Mac and Windows.) However I started to wonder whether this is ...
14
votes
3answers
1k views

Is it bad design to hide a form's success message after a short time?

I was working on a non profit site www.gettingtoknowcancer.org and one of the requirements was to have a subscribe form on the right.So I created the subscribe form like this which when clicked ...
0
votes
5answers
571 views

Should app cache images or fetch them from server everytime in a mobile app?

I'm creating an Android app which is an on-device portal for installing applications. I'm currently storing the required images (apps and category icons) in an Sqlite database using base64 encoding ...
4
votes
2answers
250 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 ...
26
votes
2answers
1k views

Defining “Instantaneous” as part of usability acceptance criteria

The Setup I have run into this problem time and time again. An interface is performing slow and QA and/or Engineering come back and ask, "can you please define the acceptance criteria for how fast ...
0
votes
1answer
127 views

Only loading necessary items vs. pre-loading

I'm working on a Chrome Extension, and since Chrome's auto-updating system positively sucks, I'm doing my own. Also, I haven't even publicly released my extension yet, so the design can count on ...