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
54 views

How long should my website wait before auto-suggesting possible choices?

We have an app that autosuggests various possible options based on a database query. For example if a user types 'Steve', it will find all Steves and allow them to choose the correct one. It looks ...
0
votes
0answers
33 views

Search results - bring data by custom query or all data ? (Performance issues)

We developing system which uses web console. Once the user login, he can choose date from dates slider and click “Get” button to retrieve relevant data which could be more than 5000 records (The data ...
0
votes
1answer
48 views

Is a visually unnoticeable performance improvement a valid excuse to reduce graphics quality?

I'm doing a mobile app that intensively needs to use CPU and memory. For a week, I went on a microoptimizations rush that led to reducing the whole memory usage by 25% and CPU stopped peaking so ...
2
votes
3answers
197 views

Should I use a separate icon if the response will be slow?

I'm currently building the UI for a webapp where users can refresh various bits of content. The speed of this refresh depends on the type of content. In most places this is a very quick operation (max ...
0
votes
2answers
32 views

Implications and knock on effects of late scheduled emails to the user experience?

We are building a large module onto our software that allows hourly data to be processed, and sent out as emails to customers, based on a pre-determined schedule they set themselves. Typically our ...
4
votes
2answers
99 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 this summary ...
1
vote
3answers
204 views

Is it better to be slow and have feedback, or relatively fast but no feedback?

I'm modifying a legacy application that can export data to a file. Currently, this process is really slow, but indirectly gives a visual feedback of the progress (it updates the UI from inside a for ...
0
votes
1answer
54 views

Apdex - Where does the “four times” factor come from?

You may know the Apdex (Application Performance Index) to give a meaningful statement about an application's performance. There are these three satisfaction zones, namely "satisfied", "tolerated" and ...
0
votes
1answer
60 views

Website performance that influences user experience

I'm looking for some current statistics that reveals data about the majority of users who leave a webpage after they have to wait a certain time until the page starts loading. Here it says that "57% ...
41
votes
6answers
3k views

Will forcing response time to the average time as a minimum improve UX?

I have a situation where my Ajax call response time could vary from 14ms to 600ms, because of the complexity of a Query they could make. From my experience Users take for granted those 20-80 ms round ...
0
votes
2answers
561 views

Acceptable waiting time for users in time sensitive actions

Is there an acceptable waiting time for users when they are on banking or finance related websites after they perform an action? I expect that for important tasks users are prepared to be more ...
0
votes
1answer
53 views

have a pagination on the home page can affect the page loading?

I developed a pagination with all news I have in database, and I did it in homepage of my website. I would like to know your opinion, if it´s correct to do pagination on homepage, or if it will be ...
0
votes
1answer
48 views

Is adding a sleep to my code to be able to show a loading icon effective for informing the user

I have follow / un follow feature on my website. Currently, you click the button and using PHP and AJAX I change the button background colour. This is a simple action for the website so doesn't take ...
1
vote
3answers
90 views

Ideal waiting time before posting another post

Here on Stack Exchange you have to wait 15 minutes before posting another question. But from a general standpoint, where quality isn't a must/enforced (something along the lines of a forum, but more ...
1
vote
2answers
92 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
144 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 ...
2
votes
2answers
82 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 ...
8
votes
7answers
3k 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 ...
2
votes
1answer
89 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 ...
2
votes
2answers
103 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
63 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
141 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
186 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
263 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
218 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
72 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
149 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
195 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
599 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
238 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
116 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
194 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
97 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
109 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
344 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 ...
18
votes
5answers
2k 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
104 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 ...
5
votes
2answers
2k 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: ...
171
votes
11answers
39k 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
800 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
199 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
2k 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
212 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 ...
6
votes
3answers
1k 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
1k 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
97 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
216 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
597 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 ...