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

learn more… | top users | synonyms (3)

1
vote
2answers
41 views

Official study for importance of performance

I read a lot that the performance of a site or a program is really important for the impression on the user and their decision to buy something/come back again later. While this is logical, I wasn't ...
0
votes
2answers
66 views

Is slow business software bad?

Using several CRM and ERP system I've noticed that many of them suffer from poor performance. Specially SaaS CRM system can have response time of several seconds (1-4s). But I've also seen this ...
1
vote
1answer
28 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 ...
4
votes
7answers
404 views

What are alternatives to a large drop down select list?

I am adding a single selection drop down containing a list of all countries (around 200+ items). In Windows it works fine as it displays 10-15 countries at a time and the scroll bar shows up. On the ...
-1
votes
1answer
82 views

Css animation vs canvas animation [closed]

Well, I can add an animation in two ways: canvas CSS key-frame. for me both have some advantage and disadvantages, for example: CSS is light way and simple canvas easy to manipulate through JS ...
2
votes
1answer
62 views

APDEX - Is there any new approach so far?

Apdex is the application performance index that takes user's response times and classify them as "satisfied", "tolerable" or "frustrated". It is a simple approach to evaluate the user experience for ...
1
vote
1answer
48 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
1answer
40 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 ...
1
vote
2answers
102 views

Should a “clear search form” button also clear the search results?

We have a somewhat complex search form, where the user can add search fields which search in specific database fields only (the pattern known from e.g. Thunderbird message search, and many scientific ...
2
votes
1answer
127 views

How might Windows show a loading status instead of just freezing?

Every now and then, you'll have a bunch of desktop applications open in Windows. Let's say you have a word processor, a web browser, a music player, and video game open simultaneously. All of these ...
1
vote
2answers
153 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 ...
8
votes
2answers
158 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 ...
2
votes
1answer
66 views

Website readability vs performance vs experience

I am running a page that utilizes an off-canvas design pattern for the main menu on small screens. Using progressive enhancement, I use CSS transformations instead of position absolute to show/hide ...
1
vote
1answer
120 views

Are there studies that show how long a user is willing to wait when logging into a website?

It is a known good practice to use slow password hashing algorithms with a tunable iteration count to increase the difficult of a successful bruteforce attack on a password hash. I quote part of an ...
2
votes
2answers
114 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 ...
13
votes
2answers
449 views

Is showing a loader inside a button on mobile a good practice?

On many apps the "loading" state is displayed inside a blank screen. I was considering having it directly inside the touched button but I wanted to know if it's something common. I don't have example ...
-2
votes
2answers
176 views

Long response time from server, what to show instead of a loading image?

I have an API of Web Service, which has a long response time in some cases. What should I show instead of a regular loading image to keep the users feel good (so that users do not get frustrated)?
-1
votes
1answer
95 views

What Are the Top UX Enterprise-level Methology Considerations? [closed]

I've read much about Enterprise Methodology considerations being required for user experience requirements,design, and implementation in relation to providing a great UX for today's enterprise workers ...
1
vote
1answer
157 views

How do you measure performance/success of web based applications?

When I find/read articles about analytics and especially setting KPIs, they're always about websites & web shops. As I'm now more into web based (business) applications including mobile versions ...
1
vote
1answer
74 views

Are there any peer-reviewed papers on the maximum waiting time to be considered “user real-time”? [duplicate]

Are there any scientific papers about any study performed on what is considered a maximum waiting time for an activity to be considered "user real-time" (not software real-time). I was looking at ...
0
votes
1answer
1k views

Rationale behind long touch latency on Android [closed]

As a longtime Apple touch-device user, I was really taken aback when I got my first Android phone (Galaxy SIII). In contrast with every Apple product I've used, the Galaxy had a bit of a lag time with ...
0
votes
2answers
89 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
265 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 ...
15
votes
4answers
978 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
97 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
72 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 ...
4
votes
2answers
856 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: ...
168
votes
11answers
38k 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 ...
8
votes
4answers
300 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
189 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
970 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
137 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 ...
5
votes
3answers
552 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?
11
votes
6answers
934 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
92 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
3answers
164 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
439 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 ...
6
votes
2answers
851 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 ...
28
votes
7answers
1k 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
147 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
59 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 ...
8
votes
8answers
883 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
369 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" ...
13
votes
3answers
327 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 ...
1
vote
5answers
297 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
225 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
144 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 ...
91
votes
15answers
25k 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
270 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
345 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 ...