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24 ways



Web design and development articles and tutorials for advent.



Published: Mon, 18 Dec 2017 09:04:41 +0000

Last Build Date: Mon, 18 Dec 2017 09:04:41 +0000

 



Designing for Mobile Performance

Mon, 18 Dec 2017 12:00:00 +0000

Mustafa Kurtuldu mulls over the topic of performance - both perceived and measured - for users of mobile devices. Of course, in managing to deliver millions of gifts around the world on the night before Christmas perhaps Santa is the real expert in mobile performance. Sponsor: Aquent Gymnasium offers free online courses on web development, design, user experience, and content. Last year, some colleagues at Google ran a research study titled “The Need for Mobile Speed” to find out what the impact of performance and perception of speed had on the way people use the web on their mobile devices. That’s not a trivial distinction; when considering performance, how fast something feels is often more important than how fast it actually is. When dealing with sometimes underpowered mobile devices and slow mobile networks, designing experiences that feel fast is exceptionally important. One of the most startling numbers we found in the study was that 53% of mobile site visits are abandoned if pages take longer than 3 seconds to load. We wanted to find out more, so following on from this study, we conducted research to define what the crucial elements of speed are. We took into consideration the user experience (UX), overall perception of speed, and how differing contexts the user finds themselves in can alter how fast a user thinks something loaded. To understand speed and load times first we must understand that user mobile web behaviour is broken down into three buckets; Intention Location State of mind Let’s look at each of those in turn. Intention Users browse sites on a mobile device for many different reasons. To be able to effectively design a performant user experience for them, it’s important to understand what those reasons might be. When asked to describe their reason for visiting a site, approximately 30% of people asked by the study claimed that they were simply browsing without a particular purpose in mind. Looking deeper, we found that this number increased slightly (34%) for retail sites. 30% said they were just there to find out some information for a future task or action, such as booking a flight. Interestingly, the research shows that users are actually window shopping using their mobile browser. Only 29% actually said they had a specific goal or intent in mind, and this number increases significantly for financial services like banking sites (57%). This goes against a traditionally held view of users wanting to perform simple actions efficiently on their mobile device. Sure, some users are absolutely doing that, but many are just browsing around without a goal in mind, just like they would on a desktop browser. This gives great insight into the user’s intentions. It tells us that users are actively using sites on their mobile, but a large majority do not intend to do anything instantly. There’s no goal they’re under pressure to achieve. If a site’s performance is lousy or janky, this will only reaffirm to the user to that they can hold off on completing a task, so they might just give up. However, if a site is quick to load, sophisticated in expressing its value proposition quickly, and enables the user to perform their actions seamlessly, then turning that “browsing user” into a “buying user” becomes all that much easier. When the user has no goal, there’s more opportunity to convert, and you stand a greater chance of doing that if the performance is good enough so they stick around. Location Obviously, mobile devices by their nature can be used in many different locations. This is an interesting consideration, because it’s not something we traditionally need to take into account designing experiences for static platforms like desktop computers. The in the study, we found that 82% of users browse the web on their mobile phone while in their home. In contrast, only 7% do the same while at work. This might come across as a bit of a shock, but when you look at mobile usage [...]



Feeding the Audio Graph

Fri, 01 Dec 2017 12:00:00 +0000

Ben Foxall dives deep into the Web Audio API to serve up such well known Christmas hits as I’m Dreaming Of A White Noise Generator, and All I Want For Christmas Is 440Hz. Get ready to dance around your browser this season, because it certainly won’t be a silent night. Brought to you by The CSS Layout Workshop. Does developing layouts with CSS seem like hard work? How much time could you save without all the trial and error? Are you ready to really learn CSS layout? In 2004, I was given an iPod. I count this as one of the most intuitive pieces of technology I’ve ever owned. It wasn’t because of the the snazzy (colour!) menus or circular touchpad. I loved how smoothly it fitted into my life. I could plug in my headphones and listen to music while I was walking around town. Then when I got home, I could plug it into an amplifier and carry on listening there. There was no faff. It didn’t matter if I could find my favourite mix tape, or if my WiFi was flakey - it was all just there. Nowadays, when I’m trying to pair my phone with some Bluetooth speakers, or can’t find my USB-to-headphone jack, or even access any music because I don’t have cellular reception; I really miss this simplicity. The Web Audio API I think the Web Audio API feels kind of like my iPod did. It’s different from most browser APIs - rather than throwing around data, or updating DOM elements - you plug together a graph of audio nodes, which the browser uses to generate, process, and play sounds. The thing I like about it is that you can totally plug it into whatever you want, and it’ll mostly just work. So, let’s get started. First of all we want an audio source.