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Adactio: Journal

https://adactio.com/journal/
The online journal of Jeremy Keith, an author and web developer living and working in Brighton, England.
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Other people’s weeknotes

Paul is writing weeknotes. Here’s his latest.

Amy is writing weeknotes. Here’s her latest.

Aegir is writing weeknotes. Here’s his latest.

Nat is writing weeknotes. Here’s their latest.

Alice is writing weeknotes. Here’s her latest.

Mark is writing weeknotes. Here’s his latest.

I enjoy them all.

Fri, 15 Mar 2019 19:00:59 GMT


What a day that was

I woke up in Geneva. The celebrations to mark the 30th anniversary of the World Wide Web were set to begin early in the morning.

It must be said, March 12th 1989 is kind of an arbitrary date. Maybe the date that the first web page went online should mark the birth of the web (though the exact date might be hard to pin down). Or maybe it should be August 6th, 1991—the date that Tim Berners-Lee announced the web to the world (well, to the alt.hypertext mailing list at least). Or you could argue that it should be April 30th, 1993, the date when the technology of the web was officially put into the public domain.

In the end, March 12, 1989 is as good a date as any to mark the birth of the web. The date that Tim Berners-Lee shared his proposal. That’s when the work began.

Exactly thirty years later, myself, Martin, and Remy are registered and ready to attend the anniversay event in the very same room where the existence of the Higgs boson was announced. There’s coffee, and there are croissants, but despite the presence of Lou Montulli, there are no cookies.

Happy birthday, World Wide Web! Love, One third of the https://worldwideweb.cern.ch team at CERN.

The doors to the auditorium open and we find some seats together. The morning’s celebrations includes great panel discussions, and an interview with Tim Berners-Lee himself. In the middle of it all, they show a short film about our hack week recreating the very first web browser.

It was surreal. There we were, at CERN, in the same room as the people who made the web happen, and everyone’s watching a video of us talking about our fun project. It was very weird and very cool.

Afterwards, there was cake. And a NeXT machine—the same one we had in the room during our hack week. I feel a real attachment to that computer.

A NeXT machine from 1989 running the WorldWideWeb browser and my laptop in 2019 running https://worldwideweb.cern.ch

We chatted with lots of lovely people. I had the great pleasure of meeting Peggie Rimmer. It was her late husband, Mike Sendall, who gave Tim Berners-Lee the time (and budget) to pursue his networked hypertext project. Peggie found Mike’s copy of Tim’s proposal in a cupboard years later. This was the copy that Mike had annotated with his now-famous verdict, “vague but exciting”. Angela has those words tattooed on her arm—Peggie got a kick out of that.

Eventually, Remy and I had to say our goodbyes. We had to get to the airport to catch our flight back to London. Taxi, airport, plane, tube; we arrived at the Science Museum in time for the evening celebrations. We couldn’t have been far behind Tim Berners-Lee. He was making a 30 hour journey from Geneva to London to Lagos. We figured seeing him at two out of those three locations was plenty.

This guy again! I think I’m being followed.

By the end of the day we were knackered but happy. The day wasn’t all sunshine and roses. There was a lot of discussion about the negative sides of the web, and what could be improved. A lot of that was from Sir Tim itself. But mostly it was a time to think about just how transformative the web has been in our lives. And a time to think about the next thirty years …and the web we want.

Wed, 13 Mar 2019 23:10:37 GMT


T minus one

I’m back at CERN.

I’m back at CERN because tomorrow, March 12th, 2019, is exactly thirty years on from when Tim Berners-Lee submitted his original “vague but exciting” Information Management: A Proposal. Tomorrow morning, bright and early, there’s an event at CERN called Web@30.

Thanks to my neglibable contribution to the recreation of the WorldWideWeb browser, I’ve wrangled an invitation to attend. Remy and Martin are here too, and I know that the rest of the team are with us in spirit.

I’m so excited about this! I’m such a nerd for web history, it’s going to be like Christmas for me.

If you’re up early enough, you can watch the event on a livestream. The whole thing will be over by mid-morning. Then, Remy and I will take an afternoon flight back to England …just in time for the evening event at London’s Science Museum.

Mon, 11 Mar 2019 23:16:18 GMT


Handing back control

An Event Apart Seattle was most excellent. This year, the AEA team are trying something different and making each event three days long. That’s a lot of mindblowing content!

What always fascinates me at events like these is the way that some themes seem to emerge, without any prior collusion between the speakers. This time, I felt that there was a strong thread of giving control directly to users:

Sarah and Margot both touched on this when talking about authenticity in brand messaging.

Margot described this in terms of vulnerability for the brand, but the kind of vulnerability that leads to trust.

Sarah talked about it in terms of respect—respecting the privacy of users, and respecting the way that they want to use your services. Call it compassion, call it empathy, or call it just good business sense, but providing these kind of controls in an interface is an excellent long-term strategy.

In Val’s animation talk, she did a deep dive into prefers-reduced-motion, a media query that deliberately hands control back to the user.

Even in a CSS-heavy talk like Jen’s, she took the time to explain why starting with meaningful markup is so important—it’s because you can’t control how the user will access your content. They may use tools like reader modes, or Pocket, or have web pages read aloud to them. The user has the final say, and rightly so.

In his CSS talk, Eric reminded us that a style sheet is a list of strong suggestions, not instructions.

Beth’s talk was probably the most explicit on the theme of returning control to users. She drew on examples from beyond the world of the web—from architecture, urban planning, and more—to show that the most successful systems are not imposed from the top down, but involve everyone, especially those most marginalised.

And even in my own talk on service workers, I raved about the design pattern of allowing users to save pages offline to read later. Instead of trying to guess what the user wants, give them the means to take control.

I was really encouraged to see this theme emerge. Mind you, when I look at the reality of most web products, it’s easy to get discouraged. Far from providing their users with controls over their own content, Instagram won’t even let their customers have a chronological feed. And Matt recently wrote about how both Twitter and Quora are heading further and further away from giving control to their users in his piece called Optimizing for outrage.

Still, I came away from An Event Apart Seattle with a renewed determination to do my part in giving people more control over the products and services we design and develop.

I spent the first two days of the conference trying to liveblog as much as I could. I find it really focuses my attention, although it’s also quite knackering. I didn’t do too badly; I managed to write cover eleven of the talks (out of the conference’s total of seventeen):

  1. Slow Design for an Anxious World by Jeffrey Zeldman
  2. Designing for Trust in an Uncertain World by Margot Bloomstein
  3. Designing for Personalities by Sarah Parmenter
  4. Generation Style by Eric Meyer
  5. Making Things Better: Redefining the Technical Possibilities of CSS by Rachel Andrew
  6. Designing Intrinsic Layouts by Jen Simmons
  7. How to Think Like a Front-End Developer by Chris Coyier
  8. From Ideation to Iteration: Design Thinking for Work and for Life by Una Kravets
  9. Move Fast and Don’t Break Things by Scott Jehl
  10. Mobile Planet by Luke Wroblewski
  11. Unsolved Problems by Beth Dean

Sat, 09 Mar 2019 21:13:47 GMT


Updating email addresses with Mailchimp’s API

I’ve been using Mailchimp for years now to send out a weekly newsletter from The Session. But I never visit the Mailchimp website. Instead, I use the API to create a campaign each week, and then send it out. I also use the API whenever a member of The Session updates their email preferences (or changes their details).

I got an email from Mailchimp that their old API was being deprecated and I’d need to update to their more recent one. The code I was using had been happily running for about seven years, but now I’d have to change it.

Luckily, Drew has written a really handy Mailchimp API wrapper for PHP, the language that The Session’s codebase is in. Thanks, Drew! I downloaded that wrapper and updated my code accordingly.

Everything went pretty smoothly. I was able to create campaigns, send campaigns, add new subscribers, and delete subscribers. But I ran into an issue when I wanted to update someone’s email address (on The Session, you can edit your details at any time, including your email address).

Here’s the set up:

use \DrewM\MailChimp\MailChimp;
$MailChimp = new MailChimp('abc123abc123abc123abc123abc123-us1');
$list_id = 'b1234346';
$subscriber_hash = $MailChimp -> subscriberHash('currentemail@example.com');
$endpoint = 'lists/'.$listID.'/members/'.$subscriber_hash;

Now to update details, according to the API, I can use the patch method on that endpoint:

$MailChimp -> patch($endpoint, [
    'email_address' => 'newemail@example.com'
]);

But that doesn’t work. Mailchimp effectively treats email addresses as unique IDs for subscribers. So the only way to change someone’s email address appears to be to delete them, and then subscribe them fresh with the new email address:

$MailChimp -> delete($endpoint);
$newendpoint = 'lists/'.$listID.'/members';
$MailChimp -> post($newendpoint, [
    'email_address' => 'newemail@example.com',
    'status' => 'subscribed'
]);

That’s somewhat annoying, as the previous version of the API allowed email addresses to be updated, but this workaround isn’t too arduous.

Anyway, I figured it share this just in case it was useful for anyone else migrating to the newer API.

Update: Belay that. Turns out that you can update email addresses, but you have to be sure to include the status value:

$MailChimp -> patch($endpoint, [
    'email_address' => 'newemail@example.com',
    'status' => 'subscribed'
]);

Okay, that’s a lot more straightforward. Ignore everything I said.

Sat, 09 Mar 2019 16:15:39 GMT


Going Offline—the talk of the book

I gave a new talk at An Event Apart in Seattle yesterday morning. The talk was called Going Offline, which the eagle-eyed amongst you will recognise as the title of my most recent book, all about service workers.

I was quite nervous about this talk. It’s very different from my usual fare. Usually I have some big sweeping arc of history, and lots of pretentious ideas joined together into some kind of narrative arc. But this talk needed to be more straightforward and practical. I wasn’t sure how well I would manage that brief.

I knew from pretty early on that I was going to show—and explain—some code examples. Those were the parts I sweated over the most. I knew I’d be presenting to a mixed audience of designers, developers, and other web professionals. I couldn’t assume too much existing knowledge. At the same time, I didn’t want to teach anyone to such eggs.

In the end, there was an overarching meta-theme to talk, which was this: logic is more important than code. In other words, figuring out what you’re trying to accomplish (and describing it clearly) is more important than typing curly braces and semi-colons. Programming is an act of translation. Before you can translate something, you need to be able to articulate it clearly in your own language first. By emphasising that point, I hoped to make the code less overwhelming to people unfamilar with it.

I had tested the talk with some of my Clearleft colleagues, and they gave me great feedback. But I never know until I’ve actually given a talk in front of a real conference audience whether the talk is any good or not. Now that I’ve given the talk, and received more feedback, I think I can confidentally say that it’s pretty damn good.

My goal was to explain some fairly gnarly concepts—let’s face it: service workers are downright weird, and not the easiest thing to get your head around—and to leave the audience with two feelings:

  1. This is exciting, and
  2. This is something I can do today.

I deliberately left time for questions, bribing people with free copies of my book. I got some great questions, and I may incorporate some of them into future versions of this talk (conference organisers, if this sounds like the kind of talk you’d like at your event, please get in touch). Some of the points brought up in the questions were:

If you attended the talk and want to learn more about about service workers, there’s my book (obvs), but I’ve also written lots of blog posts about service workers and I’ve linked to lots of resources too.

Finally, here’s a list of links to all the books, sites, and articles I referenced in my talk…

Books

Sites

Progressive Web Apps

Thu, 07 Mar 2019 20:10:17 GMT


Unsolved Problems by Beth Dean

An Event Apart in Seattle continues. It’s the afternoon of day two and Beth Dean is here to give a talk called Unsolved Problems:

Technology products are being adapted faster than ever. We’ve spent a lot of time adopting new technology, but not as much time considering the social impact of doing so. This talk looks at large scale system design in the offline world, and takes lessons from them to our online work. You’ll learn how to expand your design approach from self-contained products, to considering the broader systems in which they exist.

Fun fact: An Event Apart was the first conference that Beth attended over ten years ago.

Who recognises this guy on screen? It’s Robert Stack, the creepy host of Unsolved Mysteries. It was kind of like the X-Files. The X-Files taught Beth to be a sceptic. Imagine Beth’s surprise when her job at Facebook led her to actual conspiracies. It’s been a hard year, what with Cambridge Analytica and all.

Beth’s team is focused on how people experience ads, while the whole rest of the company is focused on ads from the opposite end. She’s the Fox Mulder of the company.

Technology today has incredible reach. In recent years, we’ve seen 1:1 harm. That’s when a product negatively effects someone directly. In their book, Eric and Sara point out that Facebook is often the first company to solve these problems.

1:many harm is another use of technology. Designing in isolation isn’t new to tech. We’ve seen 1:many harm in urban planning. Brasilia is a beautiful city that nobody wants to live in. You need messy, mixed-use spaces, not a space designed for cars. Niemeier planned for efficiency, not reality.

Eichler buildings were supposed to be egalitarian. But everything that makes these single-story homes great places to live also makes them great targets for criminals. Isolation by intentional design leads to a less safe place to live.

One of Frank Gehry’s buildings turned into a deathtrap when it was covered with snow. And in summer, the reflective material makes it impossible to sit on side of it. His Facebook office building has some “interesting” restroom allocation, which was planned last.

Ohio had a deer overpopulation problem. So the solution they settled on was to introduce coyotes. Now there’s a coyote problem. When coyotes breed with stray dogs, they start to get aggressive and they hunt in packs. This is the cobra effect: when the solution to your problem makes the problem worse. The British government offered a bounty for cobras in India. So people bred snakes for the bounty. So they got rid of the bounty …and then all those snakes were released into the wild.

So-called “ride sharing” apps are about getting one person from point A to point B. They’re not about making getting around easier in general.

Google traffic directions don’t factor in the effect of Google giving everyone the same traffic directions.

AirBnB drives up rent …even though it started out as a way to help people who couldn’t make rent. Sounds like cobra farming.

Automating Inequality by Virgina Eubanks is an excellent book about being dropped by health insurance. An algorithm did it. By taking broken systems and automating them, we accelerate disenfranchisement.

Then there’s Facebook. Psychological warfare is not new. Radio and television have influenced elections long before the internet. Politicians changed their language to fit the medium of radio.

The internet has removed all friction that helps us behave cooperatively. Removing friction was once our goal, but it turns out that friction is sometimes useful. The internet has turned into an outrage machine.

Solving problems in the isolation of our own products ignores the broader context of society.

The Waze map reflects cities as they are, not the way someone wishes them to be.

—Noam Bardin, CEO of Waze

From bulletin boards to today’s web, the internet has always been toxic because human nature is toxic. Maybe that’s the bigger problem to solve.

We can look to other industries…

Ideo redesigned the hospital experience. People were introduced to their entire care staff on their first visit. Sloan Kettering took a similar approach. Artwork serves as wayfinding. Every room has its own bathroom. A Chicago hostpital included gardens because it improves recovery.

These hospital examples all:

We’ve seen some bad examples from urban planning, but there are success stories too.

A person on a $30 bicycle is as important as someone in a $30,000 car, said Enrique Peñalosa.

Copenhagen once faced awful traffic congestion. Now people cycle everywhere. It’s the fastest way to get around. The city is designed for bicycles first. People rode more when it felt safer. It’s no coincidence that Copenhagen ranks as one of the most livable cities in the world.

Scandinavian prisons use a concept called restorative justice. The staff plays badminton with the inmates. They cook together. Treat people like dirt and they will act like dirt. Treat people like people and they will act like people. Recividism rates in Norway are now way low.

The deHavilland Comet was made of metal. After a few blew apart at the seams, they switched from rivetted material. Airlines today develop a culture of crew resource management that encourages people to speak up.

What can we do?

Make people better curators. How might we allow people to assess the veracity of information for themselves? What if we gave people better tools to affect their overall experience, not just small customisations?

We can use what we know about people to bring out their best behaviours. We can empower people to take action instead of just outrage.

What if we designed for the good of the community instead of the success of individuals. Like the Vauban in Freiburg! It was squatted, and the city gave control to the squatters to create an eco neighbourhood with affordable housing.

We need to think about what kind of worlds we want to create. What if we made the web less like a mall and more like a public park?

These are hard problems. But we solve hard technology problems every day. We could be the first generation of builders to solve technology’s hard problems.

Wed, 06 Mar 2019 00:36:38 GMT


Mobile Planet by Luke Wroblewski

It’s the afternoon of day two of An Event Apart in Seattle. The mighty green one, Luke Wroblewski, is here to deliver a talk called Mobile Planet:

With 3.5 billion active smartphones on Earth, we’re now faced with the challenges and opportunities of designing planet-scale software. Through a data-informed, big-picture walk-through of our mobile planet, Luke will dig into how people use computing devices today and how the design of our products needs to adapt to this reality. He’ll cover key issues like app on-boarding and performance in enough detail to give you clear ways to improve first time and subsequent use of your mobile apps and sites.

Luke has been working on figuring out hardware and software for years. He looks at a lot of data. The more we understand how people use technology in their daily lives, the better we can design for them.

Earth is the third planet from the sun, and the only place that we know of that harbours life. Our population is at about 7.7 billion people. There are about 5.6 billion people in our addressable market (people over 14 years old). There are already 5 billion mobile subscribers in there. That’s interesting, but which of those devices are modern smartphones? There are about 3.6 billion active smartphones. Compare that to about 1.3 billion active personal computers—the vast majority of them Windows devices (about 1.2 billion). Over the next four or five years, we’ll have about 5 billion smartphone users and a global population of 8 billion.

The point is that we can reach a significant proportion of the human species. The diversity of our species makes it challenging to design for everyone.

Let’s take a closer look at these 3.6 billion active smartphones. About 25% of them are iOS devices. 75% of them are Android. Bear in mind that these are active devices—what’s actually being used. That’s different to shipping devices. Apple ships 15% of smartphone, and Android ships 85%, but the iOS devices tend to have longer lifespans (around 2 years for Android; around 4 years for iOS).

The UK has 82% smartphone penetration. Compare that to India, where it’s 27%. There’s room to grow.

Everywhere you look, the growth of these devices has led to a shift of digital things overtaking analogue. Shopping, advertising, music, you name it. We’ve seen enough of these transitions happen, that we should be prepared for it.

So there are lots of smartphones, with basically two major operating systems. But how are people using these devices?

In the US, adults spend about 2.3 - 3.5 hours per day on their mobile devices. Let’s call it an even 3 hours. That’s a lot of time. Where does that time come from? Interestingly, as time spent on mobile devices has surged, time spent on other media has only slowly declined. So mobile is additive. It’s contributing to more time spent on the internet rather than taking it away from existing screen time.

Next question: what the hell are people doing during those 3 hours per day on smartphones? Native apps get about 169 minutes of time compared to only 11 minutes on the web. There are about 2 million native apps on Apple, and about 2 million native apps on Android. But although people have a lot of apps, people only use about half them. Remember folks, downloads does not equal usage. Most apps don’t make it past the first opening. Only a third make it past being opened ten times.

Because people spend so much time and energy on these apps, and given the abysmal abandonment, people start freaking out about “engagement.” So what do they reach for? Push notifications. Either that or onboarding.

Push notifications. The worst. I mean, they do succeed in getting your attention: push notifications do increase the amount of time spent in your app …but there’s a human cost.

Let’s look at app onboarding. Take Flickr, for example. It walks through some of the features and benefits of the service. But it doesn’t actually help you much. It’s a list of marketing slogans. So why do people reach for onboarding?

If you just drop people into an interface and talk to them about it, they’ll say things like “I don’t know what to do. I’m lost.” The Intuit team heard this from people using their app. They reached for onboarding to solve the problem. They created guided tutorials and intro tours. Turns out that nobody would read these screens and everyone would try to skip them. What the hell, people!?

So they try in-context help, with a cute cartoon robot to explain the features. Or they scribble Einstein’s equations over the interface. Test this. People respond with “Please make it stop.”

They decided to try something simpler: one tip that calls out a good first step. That worked.

Vevo used to have an intro tour. Most people were swiping through without reading. They experimented with not running the tour. They got a 10% increase in log-ins and a 6% increase in sign-ups.

Vevo got rid of their tour, but left the sign-in/registration step. You can’t remove that, right?

Well, Hotel Tonight experimented with not doing registration. Signing up was confusing people—it’s Hotels Tonight, not Accounts Today. When they got rid of accounts, they saw a 15% increase in conversions.

Ruthlessly edit.

Google Photos used to have an in-depth on-boarding experience. First they got rid of the animation. Then the start-up screen. Then the animated tutorial. Each time they removed something, conversion went up. All that was left from the original onboarding was a half screen with one option to turn on auto-backup.

Get to your product value as fast as possible. Of course that requires you to know what your core value is. And that’s not easy to figure out.

Google Maps went through a similar reduction, removing intro screens and explanations. Now they just drop you into the map.

It’s not “get rid of everything”. It’s “get rid of everything that gets in the way of the core user action.”

Going back to the Intuit example, that’s exactly what they did in the end. That one initial tip was for the core action.

But it’s worth discussing how to present this kind of thing. If you have to overlay a tooltip for an important UI feature, maybe that UI feature should have a clearer affordance. People treat overlays as annoyances. People ignore or dismiss overlays when they’re focused on a task. It’s like an instinct to get rid of them. So if you put something useful or valuable there, it’s gone.

The core part of your application should feel like the core part of your application. It’s tough because stakeholders want to make things “pop.” We throw contrast, colour, and animation at things. But when something sticks out from the UI, people ignore it. Integrate the core action into the product UI. When elements feel foreign to a product UI, they are at best ignored, or at worst dismissed.

These is why cohesive design matters. It’s not about consistency. It’s about feeling integrated. In many cases, consistency can be counter-productive.

Some principles for successful onboarding:

  1. Get to to the product value as fast as possible. Grubhub needs your address. Pinterest needs your interests.
  2. Get rid of everything that doesn’t lead to that product value. Ruthlessly edit. Remove all friction that distracts the user from experiencing product value.
  3. Don’t be afraid to educate contextually. But do so with integrated UI.

Luke talked a lot about what’s happening in mobile apps, and mentioned that the mobile web only gets 11 minutes to the native’s 169. But let’s dive into this, because people sometimes think that a “mobile strategy” comes down to picking between these two. 50% of those 169 minutes are spent in your most used app (Facebook). 78% of the time is spent in the top 5 apps. Now the mobile web doesn’t look so bad. It turns out you can get people to a mobile web experience much, much faster than to a native one. The audience size is much, much, much higher on the web (although people will do more in a dedicated native app). So strategically both are useful—the web can attract people to native.

Back to our planet, and those 3 hours of usage on smartphones every day. People unlock their phones around 80 times a day. The average time people sleep is about 8 hours. So for every 12 waking minutes, you’re unlocking your phone. Given this frequency, it’s unsurprising that most sessions are very short—most under 30 seconds.

Given that, if things are slow, you’re going to really, really, really hate it. Waiting for slow pages to load is what really pisses people off.

The cognitive load and stress of waiting for slow pages is worse than waiting in line in a store, or watching a horror movie. That’s an industry that’s all about stressing people out by design! But experiencing mobile delays is more stressful! Probably because people aren’t watching horror movies every 12 minutes.

Because mobile delays are such a big deal, many mobile apps reach for loading spinners. But Luke saw that adding a spinner to his product increased complaints of slow loading times. Of course! The spinner is explicitly telling people, “Hey, we’re slow.”

So the switched to skeleton screens. This should feel like something is always happening. Focus on the progress, not the progress indicator. Occupied time feels shorter than unoccupied time.

A lot of people have implemented skeleton screen, but without the progressive loading. Swapping out a skeleton screen to a completely different UI all at once doesn’t help. The skeleton screens should represent the real content.

This is a lot of work; figuring how to prioritise what to load first. Luke isn’t talking about the techical side here, but the user’s experience. Investing in getting this right makes a lot of sense.

Let’s look a little closer at this number: people interacting with their phones 80 times a day. The average user touches the device 2,617 times a day. A power user touches the device over 5,000 times a day. Most touches are within one app.

90% of the touches are dealing with one thumb. Young people tend to operate with one hand. For older people, it’s more like 60%.

This is why your interface targets need to work for the thumb.

On phones, 90% of the time you’re dealing with portrait mode. Things at the top of the screen on larger devices are hard to reach. Core actions gravitate to the bottom of the screen.

Opera Touch is a new browser designed specifically for one-handed use. The Palm Pre’s WebOS was also about one-hand usage. Now that’s how iOS and Android work: swiping up from the bottom.

So mobile usage is:

What’s next? What do we need to be aware of so we don’t get caught with our pants down?

We can use the product lifecycle chart to figure this out. There’s an emergent phase, then a growth phase, then consolidation in a mature market, and then that gets disrupted and becomes a declining market.

Small screens get used more frequently, but for shorter periods of time than large screens. Wrist and voice computers are figuring out what their core offerings are.

In the emergent category, it’s all about exploration. We have no idea how things will turn out. We just don’t know. But we do know that we are now designing for lots and lots of different devices.

For today, though, focusing on mobile is still a pretty good idea.

To summarise:

Tue, 05 Mar 2019 23:42:03 GMT


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

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.

Tue, 05 Mar 2019 20:31:58 GMT


From Ideation to Iteration: Design Thinking for Work and for Life by Una Kravets

The unstoppable engine of An Event Apart in Seattle rolls onward. The second talk of the second day is from the indominatable Una Kravets. Her talk is called From Ideation to Iteration: Design Thinking for Work and for Life. Here’s the description:

Have you ever had a looming deadline and no idea where to start? Do you have a big task to face but are having trouble figuring out how to get there? Have you ever wanted to learn a technology, or build a side project but didn’t know what to build? In this talk, Una will go over an actionable approach and several techniques for applying design thinking to our work and every aspect of our lives. This includes ideating product features, blog post ideas, or even what general direction we want to move toward in our businesses. We’ll go over traditional approaches and breakout techniques that will leave you feeling more in control and ready to reach your goals.

Let’s see if I can keep up with this…

Una’s going to talk about design thinking. Una does a variety of different work outside her day job—a podcast, dev doodles, etc. Sometimes at work she’s given big, big tasks like “build a design system.” Her reaction is “whut?” How do you even start with a task like that.

Also, we make big goals sometimes. Who makes new year’s resolutions? But what does “get more fit” or “earn more income” even mean?

In this talk, Una will break things down and show how design thinking can be applied to anything.

Design thinking

A stategic, solution-based approach to solving problems.

It’s a process. It’s iterative. It’s used by IBM, Apple, GE, and it’s taught to students at a lot of different universities.

Tim Brown of Ideo points out that there’s a Venn diagram of feasability, desirability, and viability. In the middle is the point of innovation.

The steps are:

  1. Empathise — develop a deep understanding of the challenge
  2. Define — clearly articulate the problem.
  3. Ideate — brainstorm potential solutions.
  4. Prototype — design a protoype to
  5. Test — and iterate.

Una feels that the feedback part is potentially missing there. IBM uses a loop diagram to include feedback. Ideo uses these steps:

  1. Frame a question
  2. Gather inspiration
  3. Generate ideas
  4. Make ideas tangible
  5. Test to learn
  6. Share the story

Another way to think about this is how the teams interact. There’s divergence and convergence throughout. Then there’s the double diamond: design, deliver, discover.

Ideo wrote a book called Design Thinking for Libraries. It has some useful tools and diagrams. Una found this fascinating because it wasn’t specifically about products. In healthcare, GE Health used design thinking for their Adventure Series MRI scanners—it resulted in 80% less need to use sedatives. The solution might seem obvious to us in hindsight, but it wouldn’t have been obvious to medical professionals in their everyday busy lives.

Design thinking is bullshit, says Natasha Jen. She describes how it’s become an over-used term that has lost its value. Una can relate—she gets annoyed when there’s too much talking and not enough doing. Design thinking is not diagrams and sticky notes. It’s a process. It’s very much about doing something to shift perspective. It’s another tool in our toolkit, even if it has become an overused term like “synergy.”

Back in 2014, when Una was working at IBM, she thought design thinking was stupid. It seemed to be all talk, talk, talk. It felt tedious. It was 75% talking and 25% development. The balance wasn’t right.

But it’s also true that solutioning too early leads to cruft. If you end up going back to the drawing board, maybe the time could’ve been better spent doing some design thinking up front. Focus on the problem, not the solution.

Now some developers might be thinking that this is outside their area. But it can really help you in your career. It can help you choose technologies. Also, everyone on the team, regardless of role, is responsible for the product.

1. Empathise

Understand your users and the challenge. This could be a task that a user is trying to accomplish, or it could be you trying to get a raise.

Sometimes we forget who our user is. The techniques in this first step helps us solve their needs, not our needs.

You might have many users that you’re trying to help, but try focusing in on a few. You can create personas. When Una was working at Digital Ocean, the users were developers. The personas reflected this. Do the research to get to know your users.

Next, you can create an empathy map for your users. What are their goals? What are their hopes? What will they gain from your product?

Connect the empathy map to a specific context—a goal and or a scenario that the user is going through.

Bear in mind that there are many layers to your user. There are conscious rational thoughts, but also subconscious emotional thoughts. Empathy mapping helps you understand how to best communicate with your user.

Una shares a real-life scenario of hers: create a new shop-able product that increases time on site. That’s a pretty big goal. She creates a persona for a college-educated woman working in the medical field who commutes on the subway, keeps a skin-caring routing, and is getting into cake-making. Next, Una creates an empathy map for this persona. What she says, thinks, feels, and does. All of this is within the context of browsing your fashion media website casually at work.

2: Define

The problem statement should be:

How can we best create a product-highlighting web experience that Rosalyn will enjoy to increase her time on site?

You can use a tool with two columns: As-Is and to-Be. The first column is what users currently do. The second column is what you want to achieve.

3. Ideate

This is the fun part. Good old-fashioned brainstorming is good here. Go for quantity here. Get loads of ideas out.

There’s also a “worst possible ideas” game you can play at this stage. It can be a good ice-breaker.

Have a second round of brainstorming where you play the “yes, and…” game to build on the first round.

When Una was working on The Zoe Report, she found that moodboards were really useful. The iteration cycle was very fast. A moodboard allowed them to skip a lot of the back and forth between design and development. They built the website without any visual design mock-ups. They prototyped quickly, tested quickly, and shipped quickly.

Journey-mapping is the next tool you can use in this ideation phase. Map out the steps between the start and end of a user journey. Keep it simple. This is a great time to refine your product and reduce complexity.

Next, start sketching out ideas. Again, this is a great time to uncover issues and solve problems before things get too defined. But remember, when you’re showcasing your ideas in sketches, too many ideas can lead to analyis paralysis.

Oh dear. Jam. Jam. Jam. Jam. Jam. Yes, Una is using the paradox-of-choice jam example …the study who’s findings could not be reproduced.

4. Prototype

Go forth and build. A prototype can exist on a number of different axes:

There are lot of prototyping tools out there. Prototypr.io helps you find the right tool for you. It breaks things down by fidelity and life cycle.

But not all prototyping has to be digital. Paper prototyping only needs pen, paper, and scissors. Some tips:

But on the web, Una recommends getting to digital as quickly as possible because interaction is such a big part of the experience. That’s why Una likes to prototype in code. But this is still a rapid prototyping phase so don’t get too caught up in the details.

5. Test

Testing with internal teams is fine during the ideation phase, but to understand how users will relate to your product, you need to test with representative people. We are not our users.

As well as the user, have a facilitator, a computer, and a scriber. As a facilitator, it’s a good idea to reduce the amount of input you give a user. Don’t hand-hold too much or you will give away your pre-existing knowledge. Encourage your user to be verbal.

Sessioncam is a tool for creating a heatmap of where people are interacting. There are also tools for tracking clicks or mouse hovers. These all feel so utterly icky to me.

The metrics you might be looking to gather could be click-through rate, time-on-site, etc. But, Una cautions, be very wary of adding all these third-party scripts to your site and slowing it down. Who’s testing the A/B tests?

On Bustle, Una wanted to measure interactions on mobile. They tested different UI elements for interactions. They ended up updating the product with a horizontal swiping component. They were able to improve the product and ship a more refined experience.

6. Review and iterate

Una feels that this step is the most important. Analyse your successes and failures, and plan to improve.

Technology changes over time so what’s feasible and viable also changes.

Design thinking on the daily

You can use design thinking in your everyday life. Maybe you want to learn JavaScript, or write blog posts, or get more fit. Una used design thinking brainstorming to break down her goals, categorise and organise them.

“Get better at JavaScript” is a goal that Una has every year.

Empathise. In this situation, the user is you. You can still create a persona of yourself. Define. Why do you want to get better at JavaScript? Is it about making better use of your time? Ideate. There are so many different ways to learn. There are books and video courses. Or you could have a project to focus on. Break. It. Down! Create actionable steps and define how you will measure progress. Match the list of things you want to learn with the list of possible side projects. Prototype. Don’t take it literally. Just build something. Test. You’re testing on yourself in this case. Review. Una does an annual review. It’s a nice therapeutic exercise and helps her move forward into the next year with actionable goals.

Another goal might be “Write a blog post.”

Empathise. Your users are your potential readers. Who do you have in mind? Make personas. Define. What’s the topic? Ideate. If you don’t know what to write about, brainstorm. What are you working on at work that you’re learning from? Select one to try. Prototype. Write. Test. Maybe show it to co-workers. Review. How did it go? Good? Bad? Refine your process for the next blog post.

Here’s a goal: “Buy a gift for someone.”

Empathise. What does this person like? What have they enjoyed receiving in the past? Define. Is the gift something they’ll enjoy for a long time? Something they can share? Ideate. Bounce ideas off friends and relatives. Prototype. In this case, this means getting the gift. Review. Did they like it?

“Get Fit.”

In this case, the review part is probably the most important part.

Marie Kondo asks “Does this spark joy?” Ask the same question of your goals.

Remember, design thinking is not just about talking, and sticky notes. It’s about getting in the right headspace for your users.

Design thinking matters—because everything we do, we do for people. Having the tools to see through the lens of those people will help you be a more well-rounded person.

Tue, 05 Mar 2019 19:22:02 GMT


Page created: Tue, Mar 19, 2019 - 09:05 PM GMT