Tags: f1



Monday, April 22nd, 2019

Checked in at Zum Brandanfang. Matjes 🐟 — with Jessica map

Checked in at Zum Brandanfang. Matjes 🐟 — with Jessica

Friday, March 22nd, 2019

Who has the fastest website in F1? - JakeArchibald.com

I think I physically winced on more than one occassion as I read through Jake’s report here.

He makes an interesting observation at the end:

However, none of the teams used any of the big modern frameworks. They’re mostly Wordpress & Drupal, with a lot of jQuery. It makes me feel like I’ve been in a bubble in terms of the technologies that make up the bulk of the web.

Yes! This! Contrary to what you might think reading through the latest and greatest tips and tricks from the front-end community, the vast majority of sites out there on the web are not being built with React, Vue, webpack or any other “modern” tools.

Tuesday, March 5th, 2019

Move Fast and Don’t Break Things by Scott Jehl

Scott Jehl is speaking at An Event Apart in Seattle—yay! His talk is called Move Fast and Don’t Break Things:

Performance is a high priority for any site of scale today, but it can be easier to make a site fast than to keep it that way. As a site’s features and design evolves, its performance is often threatened for a number of reasons, making it hard to ensure fast, resilient access to services. In this session, Scott will draw from real-world examples where business goals and other priorities have conflicted with page performance, and share some strategies and practices that have helped major sites overcome those challenges to defend their speed without compromises.

The title is a riff on the “move fast and break things” motto, which comes from a more naive time on the web. But Scott finds part of it relatable. Things break. We want to move fast without breaking things.

This is a performance talk, which is another kind of moving fast. Scott starts with a brief history of not breaking websites. He’s been chipping away at websites for 20 years now. Remember Positioning Is Everything? How about Quirksmode? That one's still around.

In the early days, building a website that was "not broken" was difficult, but it was difficult for different reasons. We were focused on consistency. We had deal with differences between browsers. There were two ways of dealing with browsers: browser detection and feature detection.

The feature-based approach was more sustainable but harder. It fits nicely with the practice of progressive enhancement. It's a good mindset for dealing with the explosion of devices that kicked off later. Touch screens made us rethink our mouse and hover-centric matters. That made us realise how much keyboard-driven access mattered all along.

Browsers exploded too. And our data networks changed. With this explosion of considerations, it was clear that our early ideas of “not broken” didn’t work. Our notion of what constituted “not broken” was itself broken. Consistency just doesn’t cut it.

But there was a comforting part to this too. It turned out that progressive enhancement was there to help …even though we didn’t know what new devices were going to appear. This is a recurring theme throughout Scott’s career. So given all these benefits of progressive enhancement, it shouldn’t be surprising that it turns out to be really good for performance too. If you practice progressive enhancement, you’re kind of a performance expert already.

People started talking about new performance metrics that we should care about. We’ve got new tools, like Page Speed Insights. It gives tangible advice on how to test things. Web Page Test is another great tool. Once you prove you’re a human, Web Page Test will give you loads of details on how a page loaded. And you get this great visual timeline.

This is where we can start to discuss the metrics we want to focus on. Traditionally, we focused on file size, which still matters. But for goal-setting, we want to focus on user-perceived metrics.

First Meaningful Content. It’s about how soon appears to be useful to a user. Progressive enhancement is a perfect match for this! When you first make request to a website, it’s usually for a web page. But to render that page, it might need to request more files like CSS or JavaScript. All of this adds up. From a user perspective, if the HTML is downloaded, but the browser can’t render it, that’s broken.

The average time for this on the web right now is around six seconds. That’s broken. The render blockers are the problem here.

Consider assets like scripts. Can you get the browser to load them without holding up the rendering of the page? If you can add async or defer to a script element in the head, you should do that. Sometimes that’s not an option though.

For CSS, it’s tricky. We’ve delivered the HTML that we need but we’ve got to wait for the CSS before rendering it. So what can you bundle into that initial payload?

You can user server push. This is a new technology that comes with HTTP2. H2, as it’s called, is very performance-focused. Just turning on H2 will probably make your site faster. Server push allows the server to send files to the browser before the browser has even asked for them. You can do this with directives in Apache, for example. You could push CSS whenever an HTML file is requested. But we need to be careful not to go too far. You don’t want to send too much.

Server push is great in moderation. But it is new, and it may not even be supported by your server.

Another option is to inline CSS (well, actually Scott, this is technically embedding CSS). It’s great for first render, but isn’t it wasteful for caching? Scott has a clever pattern that uses the Cache API to grab the contents of the inlined CSS and put a copy of its contents into the cache. Then it’s ready to be served up by a service worker.

By the way, this isn’t just for CSS. You could grab the contents of inlined SVGs and create cached versions for later use.

So inlining CSS is good, but again, in moderation. You don’t want to embed anything bigger than 15 or 20 kilobytes. You might want separate out the critical CSS and only embed that on first render. You don’t need to go through your CSS by hand to figure out what’s critical—there are tools that to do this that integrate with your build process. Embed that critical CSS into the head of your document, and also start preloading the full CSS. Here’s a clever technique that turns a preload link into a stylesheet link:

<link rel="preload" href="site.css" as="style" onload="this.rel='stylesheet'">

Also include this:

<noscript><link rel="stylesheet" href="site.css"></noscript>

You can also optimise for return visits. It’s all about the cache.

In the past, we might’ve used a cookie to distinguish a returning visitor from a first-time visitor. But cookies kind of suck. Here’s something that Scott has been thinking about: service workers can intercept outgoing requests. A service worker could send a header that matches the current build of CSS. On the server, we can check for this header. If it’s not the latest CSS, we can server push the latest version, or inline it.

The neat thing about service workers is that they have to install before they take over. Scott makes use of this install event to put your important assets into a cache. Only once that is done to we start adding that extra header to requests.

Watch out for an article on the Filament Group blog on this technique!

With performance, more weight doesn’t have to mean more wait. You can have a heavy page that still appears to load quickly by altering the prioritisation of what loads first.

Web pages are very heavy now. There’s a real cost to every byte. Tim’s WhatDoesMySiteCost.com shows that the CNN home page costs almost fifty cents to load for someone in America!

Time to interactive. This is is the time before a user can use what’s on the screen. The issue is almost always with JavaScript. The page looks usable, but you can’t use it yet.

Addy Osmani suggests we should get to interactive in under five seconds on a 3G network on a median mobile device. Your iPhone is not a median mobile device. A typical phone takes six seconds to process a megabyte of JavaScript after it has downloaded. So even if the network is fast, the time to interactive can still be very long.

This all comes down to our industry’s increasing reliance on JavaScript just to render content. There seems to be pendulum shifts between client-side and server-side rendering. It’s been great to see libraries like Vue and Ember embrace server-side rendering.

But even with server-side rendering, there’s still usually a rehydration step where all the JavaScript gets parsed and that really affects time to interaction.

Code splitting can help. Webpack can do this. That helps with first-party JavaScript, but what about third-party JavaScript?

Scott believes easier to make a fast website than to keep a fast website. And that’s down to all the third-party scripts that people throw in: analytics, ads, tracking. They can wreak havoc on all your hard work.

These scripts apparently contribute to the business model, so it can be hard for us to make the case for removing them. Tools like SpeedCurve can help people stay informed on the impact of these scripts. It allows you to set up performance budgets and it shows you when pages go over budget. When that happens, we have leverage to step in and push back.

Assuming you lose that battle, what else can we do?

These days, lots of A/B testing and personalisation happens on the client side. The tooling is easy to use. But they are costly!

A typical problematic pattern is this: the server sends one version of the page, and once the page is loaded, the whole page gets replaced with a different layout targeted at the user. This leads to a terrifying new metric that Scott calls Second Meaningful Content.

Assuming we can’t remove the madness, what can we do? We could at least not do this for first-time visits. We could load the scripts asyncronously. We can preload the scripts at the top of the page. But ideally we want to move these things to the server. Server-side A/B testing and personalisation have existed for a while now.

Scott has been experimenting with a middleware solution. There’s this idea of server workers that Cloudflare is offering. You can manipulate the page that gets sent from the server to the browser—all the things you would do for an A/B test. Scott is doing this by using comments in the HTML to demarcate which portions of the page should be filtered for testing. The server worker then deletes a block for some users, and deletes a different block for other users. Scott has written about this approach.

The point here isn’t about using Cloudflare. The broader point is that it’s much faster to do these things on the server. We need to defend our user’s time.

Another issue, other than third-party scripts, is the page weight on home pages and landing pages. Marketing teams love to fill these things with enticing rich imagery and carousels. They’re really difficult to keep performant because they change all the time. Sometimes we’re not even in control of the source code of these pages.

We can advocate for new best practices like responsive images. The srcset attribute on the img element; the picture element for when you need more control. These are great tools. What’s not so great is writing the markup. It’s confusing! Ideally we’d have a CMS drive this, but a lot of the time, landing pages fall outside of the purview of the CMS.

Scott has been using Vue.js to make a responsive image builder—a form that people can paste their URLs into, which spits out the markup to use. Anything we can do by creating tools like these really helps to defend the performance of a site.

Another thing we can do is lazy loading. Focus on the assets. The BBC homepage uses some lazy loading for images—they blink into view as your scroll down the page. They use LazySizes, which you can find on Github. You use data- attributes to list your image sources. Scott realises that LazySizes is not progressive enhancement. He wouldn’t recommend using it on all images, just some images further down the page.

But thankfully, we won’t need these workarounds soon. Soon we’ll have lazy loading in browsers. There’s a lazyload attribute that we’ll be able to set on img and iframe elements:

<img src=".." alt="..." lazyload="on">

It’s not implemented yet, but it’s coming in Chrome. It might be that this behaviour even becomes the default way of loading images in browsers.

If you dig under the hood of the implementation coming in Chrome, it actually loads all the images, but the ones being lazyloaded are only sent partially with a 206 response header. That gives enough information for the browser to lay out the page without loading the whole image initially.

To wrap up, Scott takes comfort from the fact that there are resilient patterns out there to help us. And remember, it is our job to defend the user’s experience.

Monday, March 4th, 2019

Slow Design for an Anxious World by Jeffrey Zeldman

I’m at An Event Apart in Seattle, ready for three days of excellence. Setting the scene with the first talk of the event is the one and only Jeffrey Zeldman. His talk is called Slow Design for an Anxious World:

Most web pages are too fast or too slow. Last year, Zeldman showed us how to create design that works faster for customers in a hurry to get things done. This year he’ll show how to create designs that deliberately slow your visitors down, helping them understand more and make better decisions.

Learn to make layouts that coax the visitor to sit back, relax, and actually absorb the content your team works so hard to create. Improve UX significantly without spending a lot or chasing the tail lights of the latest whiz-bang tech. Whether you build interactive experiences or craft editorial pages, you’ll learn how to ease your customers into the experience and build the kind of engagement you thought the web had lost forever.

I’m going to attempt to jot down the gist of it as it happens…

Jeffrey begins by saying that he’s going to slooooowly ease us into the day. Slow isn’t something that our industry prizes. Things change fast on the internet. “You’re using last year’s framework!?” Ours is a newly-emerging set of practices.

Slow is negative in our culture too. We don’t like slow movies, or slow books. But somethings are better slow. Wine that takes time to make is better than wine that you produce in a prison toilet in five days. Slow-brewed coffee is well-brewed coffee. Slow dancing is nice. A slow courtship is nice. And reading slowly is something enjoyable. Sometimes you need to scan information quickly, but when we really immerse ourselves in a favourite book, we really comprehend better. Hold that thought. We’re going to come to books.

Fast is generally what we’re designing for. It’s the best kind of design for customer service designs—for people who want to accomplish something and then get on with their lives. Fast is good for customer service designs. Last year Jeffrey gave a talk last year called Beyond Engagement where he said that service-oriented content must be designed for speed of relevancy. Speed of loading is important, and so is speed of relevancy—how quickly can you give people the right content.

But slow is best for comprehension. Like Mr. Rogers. When things are a little bit slower, it’s kind of easier to understand. When you’re designing for readers, s l o w i t d o w n.

How do we slow down readers? That’s what this talk is about (he told us it would be slow—he only just got to what the point of this talk is).

Let’s start with a form factor. The book. A book is a hack where the author’s brain is transmitting a signal to the reader’s brain, and the designer of the book is making that possible. Readability is more than legibility. Readability transcends legibility, enticing people to slow down and read.

This is about absorption, not conversion. We have the luxury of doing something different here. It’s a challenge.

Remember Readability? It was designed by Arc90. They mostly made software applications for arcane enterprise systems, and that stuff tends not to be public. It’s hard for an agency to get new clients when it can’t show what it does. So they decided to make some stuff that’s just for the public. Arc90 Labs was spun up to make free software for everyone.

Readability was like Instapaper. Instapaper was made by Marco Arment so that he could articles when he was commuting on the subway. Readability aimed to do that, but to also make the content like beautiful. It’s kind of like how reader mode in Safari strips away superfluous content and formats what’s left into something more readable. Safari’s reader mode was not invented by Apple. It was based on the code from Readability. The mercury reader plug-in for Chrome also uses Readability’s code. Jeffrey went around pointing out to companies that the very existence of things like Readability was a warning—we’re making experiences so bad that people are using software to work around them. What we can do so that people don’t have to use these tools?

Craig Mod wrote an article for A List Apart called A Simpler Page back in 2011. With tablets and phones, there isn’t one canonical presentation of content online any more. Our content is sort of amorphous. Craig talked about books and newspapers on tablets. He talked about bed, knee, and breakfast distances from the body to the content.

  1. Bed (close to face): reading a novel on your stomach, lying in bed with the iPad propped up on a pillow.
  2. Knee (medium distance from face): sitting on the couch, iPad on your knee, catching up on Instapaper.
  3. Breakfast (far from face): propped up at a comfortable angle, behind your breakfast coffee and bagel, allowing hands-free news reading.

There’s some correlation between distance and relaxation. That knee position is crucial. That’s when the reader contemplates with pleasure and concentration. They’re giving themselves the luxury of contemplation. It’s a very different feeling to getting up and going over to a computer.

So Jeffrey redesigned his own site with big, big type, and just one central column of text. He stripped away the kind of stuff that Readability and Instapaper would strip away. He gave people a reader layout. You would have to sit back to read the content. He knew he succeeded because people started complaining: “Your type is huge!” “I have to lean back just to read it!” Then he redesigned A List Apart with Mike Pick. This was subtler.

Medium came along with the same focus: big type in a single column. Then the New York Times did it, when they changed their business model to a subscription paywall. They could remove quite a bit of the superfluous content. Then the Washington Post did it, more on their tablet design than their website. The New Yorker—a very old-school magazine—also went down this route, and they’re slow to change. Big type. White space. Bold art direction. Pro Publica is a wonderful non-profit newspaper that also went this route. They stepped it up by adding one more element: art direction on big pieces.

How do these sites achieve their effect of slowing you down and calming you?

Big type. We spend a lot of our time hunched forward. Big type forces you to sit back. It’s like that first moment in a yoga workshop where you’ve got to just relax before doing anything. With big type, you can sit back, take a breathe, and relax.

Hierarchy. This is classic graphic design. Clear relationships.

Minimalism. Not like Talking Heads minimalism, but the kind of minimalism where you remove every extraneous detail. Like what Mies van der Rohe did for architecture, where just the proportions—the minimalism—is the beauty. Or like what Hemingway did with writing—scratch out everything but the nouns and verbs. Kill your darlings.

Art direction. When you have a fancy story, give it some fancy art direction. Pro Publica understand that people won’t get confused about what site they’re on—they’ll understand that this particular story is special.

Whitespace. Mark Boulton wrote an article about whitespace in A List Apart. He talked about two kinds of whitespace: macro and micro. Macro is what we usually think about when we talk about whitespace. Whitespace conveys feelings of extreme luxury, and luxury brands know this. Whitespace makes us feels special. Macro whitespace can be snotty. But there’s also micro whitespace. That’s the space between lines of type, and the space inside letterforms. There’s more openness and air, even if the macro whitespace hasn’t changed.

Jeffrey has put a bunch of these things together into an example.

To recap, there are five points:

  1. Big type
  2. Hierarchy
  3. Minimalism
  4. Art direction
  5. Whitespace

There are two more things that Jeffrey wants to mention before his done. If you want people to pay attention to your design, it must be branded and it must be authoritative.

Branded. When all sites look the same, all content appears equal. Jeffrey calls this the Facebook effect. Whether it’s a noble-prize-winning author, or your uncle ranting, everthing gets the same treatment on Facebook. If you’re taking the time to post content to the web, take the time to let people know who’s talking.

Authoritative. When something looks authoritative, it cues the reader to your authenticity and integrity. Notice how every Oscar-worthy movie uses Trajan on its poster. That’s a typeface based on a Roman column. Strong, indelible letter forms carved in stone. We have absorbed those letterforms into our collective unconcious. Hollywood tap into this by using Trajan for movie titles.

Jeffrey wrote an article called To Save Real News about some of these ideas.

And with that, Jeffrey thanks us and finishes up.

Sunday, February 24th, 2019


Checked in at The Bugle Inn. Sunday afternoon session.

Friday, February 1st, 2019


It’s browser updatin’ time! Firefox 65 just dropped. So did Chrome 72. Safari 12.1 is shipping with iOS 12.2.

It’s interesting to compare the release notes for each browser and see the different priorities reflected in them (this is another reason why browser diversity is A Good Thing).

A lot of the Firefox changes are updates to dev tools; they just keep getting better and better. In fact, I’m not sure “dev tools” is the right word for them. With their focus on layout, typography, and accessibility, “design tools” might be a better term.

Oh, and Firefox is shipping support for some CSS properties that really help with print style sheets, so I’m disproportionately pleased about that.

In Safari’s changes, I’m pleased to see that the datalist element is finally getting implemented. I’ve been a fan of that element for many years now. (Am I a dork for having favourite HTML elements? Or am I a dork for even having to ask that question?)

And, of course, it wouldn’t be a Safari release without a new made up meta tag. From the people who brought you such hits as viewport and apple-mobile-web-app-capable, comes …supported-color-schemes (Apple likes to make up meta tags almost as much as Google likes to make up rel values).

There’ll be a whole bunch of improvements in how progressive web apps will behave once they’ve been added to the home screen. We’ll finally get some state persistence if you navigate away from the window!

Updated the behavior of websites saved to the home screen on iOS to pause in the background instead of relaunching each time.

Maximiliano Firtman has a detailed list of the good, the bad, and the “not sure yet if good” for progressive web apps on iOS 12.2 beta. Thomas Steiner has also written up the progress of progressive web apps in iOS 12.2 beta. Both are published on Ev’s blog.

At first glance, the release notes for Chrome 72 are somewhat paltry. The big news doesn’t even seem to be listed there. Maximiliano Firtman again:

Chrome 72 for Android shipped the long-awaited Trusted Web Activity feature, which means we can now distribute PWAs in the Google Play Store!

Very interesting indeed! I’m not sure if I’m ready to face the Kafkaesque process of trying to add something to the Google Play Store just yet, but it’s great to know that I can. Combined with the improvements coming in iOS 12.2, these are exciting times for progressive web apps!

Wednesday, January 30th, 2019

Checked in at Jolly Brewer. Banjo time. — with Jessica map

Checked in at Jolly Brewer. Banjo time. — with Jessica

Friday, November 16th, 2018

Checked in at Norræna Húsið. with Jessica, Paul, Matt, Joschi map

Checked in at Norræna Húsið. with Jessica, Paul, Matt, Joschi

Monday, September 10th, 2018

Robustness and least power

There’s a great article by Steven Garrity over on A List Apart called Design with Difficult Data. It runs through the advantages of using unusual content to stress-test interfaces, referencing Postel’s Law, AKA the robustness principle:

Be conservative in what you send, be liberal in what you accept.

Even though the robustness principle was formulated for packet-switching, I see it at work in all sorts of disciplines, including design. A good example is in best practices for designing forms:

Every field you ask users to fill out requires some effort. The more effort is needed to fill out a form, the less likely users will complete the form. That’s why the foundational rule of form design is shorter is better — get rid of all inessential fields.

In other words, be conservative in the number of form fields you send to users. But then, when it comes to users filling in those fields:

It’s very common for a few variations of an answer to a question to be possible; for example, when a form asks users to provide information about their state, and a user responds by typing their state’s abbreviation instead of the full name (for example, CA instead of California). The form should accept both formats, and it’s the developer job to convert the data into a consistent format.

In other words, be liberal in what you accept from users.

I find the robustness principle to be an immensely powerful way of figuring out how to approach many design problems. When it comes to figuring out what specific tools or technologies to use, there’s an equally useful principle: the rule of least power:

Choose the least powerful language suitable for a given purpose.

On the face of it, this sounds counter-intuitive; why forego a powerful technology in favour of something less powerful?

Well, power comes with a price. Powerful technologies tend to be more complex, which means they can be trickier to use and trickier to swap out later.

Take the front-end stack, for example: HTML, CSS, and JavaScript. HTML and CSS are declarative, so you don’t get as much precise control as you get with an imperative language like JavaScript. But JavaScript comes with a steeper learning curve and a stricter error-handling model than HTML or CSS.

As a general rule, it’s always worth asking if you can accomplish something with a less powerful technology:

In the web front-end stack — HTML, CSS, JS, and ARIA — if you can solve a problem with a simpler solution lower in the stack, you should. It’s less fragile, more foolproof, and just works.

  • Instead of using JavaScript to do animation, see if you can do it in CSS instead.
  • Instead of using JavaScript to do simple client-side form validation, try to use HTML input types and attributes like required.
  • Instead of using ARIA to give a certain role value to a div or span, try to use a more suitable HTML element instead.

It sounds a lot like the KISS principle: Keep It Simple, Stupid. But whereas the KISS principle can be applied within a specific technology—like keeping your CSS manageable—the rule of least power is all about evaluating technology; choosing the most appropriate technology for the task at hand.

There are some associated principles, like YAGNI: You Ain’t Gonna Need It. That helps you avoid picking a technology that’s too powerful for your current needs, but which might be suitable in the future: premature optimisation. Or, as Rachel put it, stop solving problems you don’t yet have:

So make sure every bit of code added to your project is there for a reason you can explain, not just because it is part of some standard toolkit or boilerplate.

There’s no shortage of principles, laws, and rules out there, and I find many of them very useful, but if I had to pick just two that are particularly applicable to my work, they would be the robustness principle and the rule of least of power.

After all, if they’re good enough for Tim Berners-Lee…

Monday, June 25th, 2018

Why Design Systems Fail by Una Kravets

I’m at An Event Apart Boston where Una is about to talk about design systems, following on from Yesenia’s excellent design systems talk. I’m going to attempt to liveblog it…

Una works at the Bustle Digital Group, which publishes a lot of different properties. She used to work at Watson, at Bluemix and at Digital Ocean. They all have something in common (other than having blue in their logos). They all had design systems that failed.

Design systems are so hot right now. They allow us think in a componentised way, and grow quickly. There are plenty of examples out there, like Polaris from Shopify, the Lightning design sytem from Salesforce, Garden from Zendesk, Gov.uk, and Code For America. Check out Anna’s excellent styleguides.io for more examples.

What exactly is a design system?

It’s a broad term. It can be a styleguide or visual pattern library. It can be design tooling (like a Sketch file). It can be a component library. It can be documentation of design or development usage. It can be voice and tone guidelines.


When Una was in College, she had a print rebranding job—letterheads, stationary, etc. She also had to provide design guidelines. She put this design guide on the web. It had colours, heading levels, type, logo treatments, and so on. It wasn’t for an application, but it was a design system.

Design tooling

Primer by Github is a good example of this. You can download pre-made icons, colours, etc.

Component library

This is where you get the code. Una worked on BUI at Digital Ocean, which described the interaction states of each components and how to customise interactions with JavaScript.

Code usage guidelines

AirBnB has a really good example of this. It’s a consistent code style. You can even include it in your build step with eslint-config-airbnb and stylelint-config-airbnb.

Design usage documentation

Carbon by IBM does a great job of this. It describes the criteria for deciding when to use a pattern. It’s driven by user experience considerations. They also have general guidelines on loading in components—empty states, etc. And they include animation guidelines (separately from Carbon), built on the history of IBM’s magnetic tape machines and typewriters.

Voice and tone guidelines

Of course Mailchimp is the classic example here. They break up voice and tone. Voice is not just what the company is, but what the company is not:

  • Fun but not silly,
  • Confident but not cocky,
  • Smart but not stodgy,
  • and so on.

Voiceandtone.com describes the user’s feelings at different points and how to communicate with them. There are guidelines for app users, and guidelines for readers of the company newsletter, and guidelines for readers of the blog, and so on. They even have examples of when things go wrong. The guidelines provide tips on how to help people effectively.

Why do design systems fail?

Una now asks who in the room has ever started a diet. And who has ever finished a diet? (A lot of hands go down).

Nobody uses it

At Digital Ocean, there was a design system called Buoy version 1. Una helped build a design system called Float. There was also a BUI version 2. Buoy was for product, Float was for the marketing site. Classic example of 927. Nobody was using them.

Una checked the CSS of the final output and the design system code only accounted for 28% of the codebase. Most of the CSS was over-riding the CSS in the design system.

Happy design systems scale good standards, unify component styles and code and reduce code cruft. Why were people adding on instead of using the existing sytem? Because everyone was being judged on different metrics. Some teams were judged on shipping features rather than producing clean code. So the advantages of a happy design systems don’t apply to them.


It’s like going to the gym. Small incremental changes make a big difference over the long term. If you just work out for three months and then stop, you’ll lose all your progress. It’s like that with design systems. They have to stay in sync with the live site. If you don’t keep it up to date, people just won’t use it.

It’s really important to have a solid core. Accessibility needs to be built in from the start. And the design system needs ownership and dedicated commitment. That has to come from the organisation.

You have to start somewhere.


Communication is multidimensional; it’s not one-way. The design system owner (or team) needs to act as a bridge between designers and developers. Nobody likes to be told what to do. People need to be involved, and feel like their needs are being addressed. Make people feel like they have control over the process …even if they don’t; it’s like perceived performance—this is perceived involvement.

Ask. Listen. Make your users feel heard. Incorporate feedback.


Good communication is important for getting buy-in from the people who will use the design system. You also need buy-in from the product owners.

Showing is more powerful than telling. Hackathans are like candy to a budding design system—a chance to demonstrate the benefits of a design system (and get feedback). After a hackathon at Digital Ocean, everyone was talking about the design system. Weeks afterwards, one of the developers replaced Bootstrap with BUI, removing 20,000 lines of code! After seeing the impact of a design system, the developers will tell their co-workers all about it.

Solid architecture

You need to build with composability and change in mind. Primer, by Github, has a core package, and then add-ons for, say, marketing or product. That separation of concerns is great. BUI used a similar module-based approach: a core codebase, separate from iconography and grid.

Semantic versioning is another important part of having a solid architecture for your design system. You want to be able to push out minor updates without worrying about breaking changes.


Use the same convention in your design files, like Sketch.

What about tech stack choice? Every company has different needs, but one thing Una recommends is: don’t wait to namespace! All your components should have some kind of prefix in the class names so they don’t clash with existing CSS.

Una mentions Solid by Buzzfeed, which I personally think is dreadful (count the number of !important declarations—you can call it “immutable” all you want).

AtlasKit by Atlassian goes all in on React. They’re trying to integrate Sketch into it, but design tooling isn’t solved yet (AirBnB are working on this too). We’re still trying to figure out how to merge the worlds of design and code.

Reduce Friction

This is what it’s all about. Using the design system has to be the path of least resistance. If the new design system is harder to use than what people are already doing, they won’t use it.

Provide hooks and tools for the people who will be using the design system. That might be mixins in Sass or it might be a script on a CDN that people can just link to.

Start early, update often. Design systems can be built retrospectively but it’s easier to do it when a new product is being built.

Bugs and cruft always increase over time. You need a mechanism in place to keep on top of it. Not just technical bugs, but visual inconsistencies.

So the five pillars of ensuring a successful design system are:

  1. Investment
  2. Communication
  3. Buy-in
  4. Solid architecture
  5. Reduce friction

When you’re starting, begin with a goal:

We are building a design system because…

Then review what you’ve already got (your existing codebase). For example, if the goal of having a design system is to increase page performance, use Web Page Test to measure how the current site is performing. If the goal is to reduce accessibility problems, use webaim.org to measure the accessibility of your current site (see also: pa11y). If the goal is to reduce the amount of CSS in your codebase, use cssstats.com to test how your current site is doing. Now that you’ve got stats, use them to get buy-in. You can also start by doing an interface inventory. Print out pages and cut them up.

Once you’ve got buy-in and commitment (in writing), then you can make technical decisions.

You can start with your atomic elements. Buttons are like the “Hello world!” of design systems. You’ve colours, type, and different states.

Then you can compose elements by putting the base elements together.

Do you include layout in the system? That’s a challenge, and it depends on your team. If you do include layout, to what extent?

Regardless of layout, you still need to think about space: the space between base elements within a component.

Bake in accessibility: every hover state should have an equal (not opposite) focus state.

Think about states, like loading states.

Then you can start documenting. Then inform the users of the system. Carbon has a dashboard showing which components are new, which components are deprecated, and which components are being updated.

Keep consistent communication. Design and dev communication has to happen. Continuous iteration, support and communication are the most important factors in the success of a design system. Code is only 10% of a sytem.

Also, don’t feel like you need to copy other design systems out there. Your needs are probably very different. As Diana says, comparing your design system to the polished public ones is like comparing your life to someone’s Instagram account. To that end, Una says something potentially contraversial:

You might not need a design sytem.

If you’re the only one at your organisation that cares about the benefits of a design system, you won’t get buy-in, and if you don’t get buy-in, the design system will fail. Maybe there’s something more appropriate for your team? After all, not everyone needs to go to the gym to get fit. There are alternatives.

Find what works for you and keep at it.

Sunday, May 20th, 2018

Checked in at Brewed. with Jessica map

Checked in at Brewed. with Jessica

Thursday, February 15th, 2018

Checked in at St James Theatre. Webstock — with Jessica, Andy, Laura map

Checked in at St James Theatre. Webstock — with Jessica, Andy, Laura

Thursday, February 8th, 2018

Checked in at Bloodhound Espresso. with Jessica map

Checked in at Bloodhound Espresso. with Jessica

Friday, January 19th, 2018

Checked in at Street Diner (Friday Street Food Market) map

Checked in at Street Diner (Friday Street Food Market)

Saturday, December 30th, 2017

Audio I listened to in 2017

I huffduffed 290 pieces of audio in 2017. I’ve still got a bit of a backlog of items I haven’t listened to yet, but I thought I’d share some of my favourite items from the past year. Here are twelve pieces of audio, one for each month of 2017…

Donald Hoffman’s TED talk, Do we see reality as it really is?. TED talks are supposed to blow your mind, right? (22:15)

How to Become Batman on Invisibilia. Alix Spiegel and Lulu Miller challenge you to think of blindness as social construct. Hear ‘em out. (58:02)

Where to find what’s disappeared online, and a whole lot more: the Internet Archive on Public Radio International. I just love hearing Brewster Kahle’s enthusiasm and excitement. (42:43)

Every Tuesday At Nine on Irish Music Stories. I’ve been really enjoying Shannon Heaton’s podcast this year. This one digs into that certain something that happens at an Irish music session. (40:50)

Adam Buxton talks to Brian Eno (part two is here). A fun and interesting chat about Brian Eno’s life and work. (53:10 and 46:35)

Nick Cave and Warren Ellis on Kreative Kontrol. This was far more revealing than I expected: genuine and unpretentious. (57:07)

Paul Lloyd at Patterns Day. All the talks at Patterns Day were brilliant. Paul’s really stuck with me. (28:21)

James Gleick on Time Travel at The Long Now. There were so many great talks from The Long Now’s seminars on long-term thinking. Nicky Case and Jennifer Pahlka were standouts too. (1:20:31)

Long Distance on Reply All. It all starts with a simple phone call. (47:27)

The King of Tears on Revisionist History. Malcolm Gladwell’s style suits podcasting very well. I liked this episode about country songwriter Bobby Braddock. Related: Jon’s Troika episode on tearjerkers. (42:14)

Feet on the Ground, Eyes on the Stars: The True Story of a Real Rocket Man with G.A. “Jim” Ogle. This was easily my favourite podcast episode of 2017. It’s on the User Defenders podcast but it’s not about UX. Instead, host Jason Ogle interviews his father, a rocket scientist who worked on everything from Apollo to every space shuttle mission. His story is fascinating. (2:38:21)

R.E.M. on Song Exploder. Breaking down the song Try Not To Breathe from Automatic For The People. (16:15)

I’ve gone back and added the tag “2017roundup” to each of these items. So if you’d like to subscribe to a podcast of just these episodes, here are the links:

Saturday, December 9th, 2017

Checked in at Novo Coffee. Getting some caffeine after a long transatlantic flight. map

Checked in at Novo Coffee. Getting some caffeine after a long transatlantic flight.

Wednesday, November 15th, 2017

What is a Progressive Web App?

It seems like any new field goes through an inevitable growth spurt that involves “defining the damn thing.” For the first few years of the IA Summit, every second presentation seemed to be about defining what Information Architecture actually is. See also: UX. See also: Content Strategy.

Now it seems to be happening with Progressive Web Apps …which is odd, considering the damn thing is defined damn well.

I’ve written before about the naming of Progressive Web Apps. On the whole, I think it’s a pretty good term, especially if you’re trying to convince the marketing team.

Regardless of the specifics of the name, what I like about Progressive Web Apps is that they have a clear definition. It reminds me of Responsive Web Design. Whatever you think of that name, it comes with a clear list of requirements:

  1. A fluid layout,
  2. Fluid images, and
  3. Media queries.

Likewise, Progressive Web Apps consist of:

  1. HTTPS,
  2. A service worker, and
  3. A Web App Manifest.

There’s more you can do in addition to that (just as there’s plenty more you can do on a responsive site), but the core definition is nice and clear.

Except, for some reason, that clarity is being lost.

Here’s a post by Ben Halpern called What the heck is a “Progressive Web App”? Seriously.

I have a really hard time describing what a progressive web app actually is.

He points to Google’s intro to Progressive Web Apps:

Progressive Web Apps are user experiences that have the reach of the web, and are:

  • Reliable - Load instantly and never show the downasaur, even in uncertain network conditions.
  • Fast - Respond quickly to user interactions with silky smooth animations and no janky scrolling.
  • Engaging - Feel like a natural app on the device, with an immersive user experience.

Those are great descriptions of the benefits of Progressive Web Apps. Perfect material for convincing your clients or your boss. But that appears on developers.google.com …surely it would be more beneficial for that audience to know the technologies that comprise Progressive Web Apps?

Ben Halpern again:

Google’s continued use of the term “quality” in describing things leaves me with a ton of confusion. It really seems like they want PWA to be a general term that doesn’t imply any particular implementation, and have it be focused around the user experience, but all I see over the web is confusion as to what they mean by these things. My website is already “engaging” and “immersive”, does that mean it’s a PWA?

I think it’s important to use the right language for the right audience.

If you’re talking to the business people, tell them about the return on investment you get from Progressive Web Apps.

If you’re talking to the marketing people, tell them about the experiential benefits of Progressive Web Apps.

But if you’re talking to developers, tell them that a Progressive Web App is a website served over HTTPS with a service worker and manifest file.

Thursday, October 26th, 2017

Checked in at Barbican Centre. Listening to Cameron. map

Checked in at Barbican Centre. Listening to Cameron.

Monday, September 18th, 2017

Checked in at The Lokal. with Jessica map

Checked in at The Lokal. with Jessica

Saturday, September 16th, 2017

Checked in at Yuan Fa Claypot Rice map

Checked in at Yuan Fa Claypot Rice