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.

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5answers
512 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 ...
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4answers
1k 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 ...
2
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5answers
185 views

Speed enhancement at the expense of not working with JS turned off

I have an image gallery that currently loads the images using standard img tags and since it has a lot of large images it loads quite slow. I can speed things up by having the gallery script ...
2
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3answers
990 views

Relationship between Front-End Dev and Interaction Design [closed]

[I am not changing the original question as there are valuable answers here. but the research I was conducting is now finished and results are published here and http://hci.me.uk/jqueryperformance/ ...
2
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1answer
220 views

Why do elevators have the close doors button? [closed]

I think that the close doors button in an elevator does very little. If it works, it saves the person two seconds of their time. If time matters this much to people, why do people stand still on ...
2
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2answers
142 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 ...
2
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3answers
189 views

OpenID login takes a second, how do I make it feel quicker?

Users on my site log in via OpenID. This is what loggin in looks like: Click the login link in the header Click one of 6 OpenID providers (wait one second) If they're there for the first time: Log ...
2
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1answer
154 views

Should I tell the user how much time a process took?

My project has some database queries and it may take a time. Should I display the time taken of a query to the user after the query ends? EDIT This project is an industry software. Users may or may ...
2
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2answers
71 views

How to make waiting time when connecting to a conference better for the user?

We have a part of our app where in the user has paid for a consultation and is then presented with a button to connect to the consultant. As in below: When the user clicks on this button, the ...
2
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3answers
221 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 ...
2
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1answer
92 views

Who invented RAIL

Since April 2015 I have been seeing a lot of references to the RAIL concept (Response Animation Idle Load) being made on blogs and in conferences as a way of evaluating the performance of user ...
2
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1answer
147 views

Studies on image compression level and UX?

Recently, there has been an influx of data showing that sites improving the site performance saw a lift in conversion. For example, an in-house Walmart.com study found that, for every one second of ...
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2answers
262 views

Studies done on constant page load times

Scenario: Fastest page on your site loads in 300ms. Slowest is 1,500ms. Have there been any studies on artificially slowing down the fast pages to match your slowest page? So that every single click ...
2
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2answers
284 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 ...
2
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4answers
148 views

Calculating tasks response time with paper-prototypes?

I am conducting paper-prototype testing and manage to collect data about completion rates and satisfaction scores. However, I am finding it difficult to calculate the task times. Is there another ...
2
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4answers
206 views

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

We are developing a system which uses a web console. Once the user logs in, he can choose a date from a date slider and click the “Get” button to retrieve relevant data which can be more than 5000 ...
2
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1answer
120 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
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1answer
150 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 time/...
2
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1answer
303 views

Combining Fitts' law with Hick's law

I'm working through a textbook and got stumped on this particular question: Use Hicks’ and Fitt’s Laws to derive an expression for the time for a user to select an item in a menu where b is the ...
2
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4answers
133 views

How to estimate the time needed to read a question?

I have to prepare an online survey. Most of the questions will be along the line of: Which of the following sentences exists in 'X' book? A B C D I would like to limit cheating ...
2
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2answers
495 views

Number of items in skeleton loader

I have a list of users. When the list is first loaded a skeleton list is presented, so that the user will experience a (perceived) performance boost: https://github.com/ksux/ks-design-guide/issues/38 ...
2
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1answer
321 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 ...
2
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1answer
98 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 ...
2
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1answer
1k 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 ...
2
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3answers
1k 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 ...
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2answers
633 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 ...
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2answers
1k 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 ...
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4answers
70 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 ...
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2answers
269 views

Lack of Agent feedback - Live Chat waiting time

What is your recommended solution for our Customer Service mobile app? We have a live chat that caters all the concerns of our customers but the problem is, we just have a limited number of agents ...
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3answers
111 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 ...
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4answers
2k 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 ...
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2answers
1k views

Live search response time

I'm looking for research around acceptable response time for a live search feature that I can provide to my back-end team. Some definitions: live search: results are automatically refined as the ...
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5answers
94 views

How do I find out which one of two different ways of loading my website gives best perceived performance for the users?

We have a rather heavy content website with about 400 000 unique daily users. The company has always focused on loading time, since we know this is important to our users, but I really want a shift in ...
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1answer
88 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 often....
1
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1answer
109 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% ...
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1answer
227 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 ...
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1answer
3k 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 ...
1
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1answer
208 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 ...
1
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1answer
254 views

Affect of a Slow System to User Productivity

I am a consultant working with a company that has a user workflow that involves waiting about 12 minutes for the system to churn some data. That is, when a user needs to accomplish work item XYZ, the ...
1
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1answer
139 views

How can I pictorially show an option is unavailable for a time?

I have an option (a single button) in the settings, that won't be avaliable for the user for about 2 weeks. I have considered a number of options: Leave it out - make it suddenly appear Keep it ...
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3answers
189 views

Lazy context menus

I manage a large Windows desktop application, which is the 'back office' of an EPOS system. There are many screens which allow the user to search through collections of objects, for example orders or ...
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2answers
161 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 ...
1
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1answer
279 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 ...
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1answer
406 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
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1answer
160 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 ...
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3answers
172 views

In a Mobile Website if a Javascript can enhance UX but will make the page little slower to load, is it ok to do that?

In a Mobile Website if a JavaScript can enhance UX but will make the page little slower to load, is it ok to use javascript? Or we should always give preference to speed specially on mobile?
1
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1answer
112 views

Disabling a modal dialog while waiting for the server

We're making a react web-app for business users We use a modal dialog for editing data. When the user clicks "save", the data get sent to the server. Usually, the server answers pretty fast (< 200 ...
1
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2answers
144 views

Always show the expand button in a tree?

I have a complex client / server system to manage master data in the industry. Much of this data is represented by a deep tree structure. What is the best thing to do at this point? Always show the ...
1
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2answers
146 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 ...