Mozilla’s work-in-progress style guide and pattern library.
Tuesday, August 21st, 2018
Wednesday, July 25th, 2018
The history of design systems at Clearleft
We decided to ask the Fractal community for help, and the response has been overwhelming. We’ve received so many offers of support in all forms that we can safely say that development will be starting up again shortly.
Although Fractal itself is barely two years old, it’s part of a much longer legacy at Clearleft…
It all started with Natalie. She gave a presentation back in 2009 called Practical Maintainable CSS . She talks about something called a pattern porfolio—a deliverable that expresses every component and documents how the markup and CSS should be used.
When Anna was interning at Clearleft, she was paired up with Natalie so she was being exposed to these ideas. She then expanded on them, talking about Front-end Style Guides. She literally wrote the book on the topic, and starting curating the fantastic collection of examples at styleguides.io.
At Clearleft, rather than deliver an inflexible set of static pages, we present our code as a series of modular components (a ‘pattern portfolio’) that can be assembled into different configurations and page layouts as required.
Such systematic thinking was instigated by Natalie, yet this is something we continually iterate upon.
To see the evolution of Paul’s thinking, you can read his three part series from last year on designing systems:
- Theory, Practice, and the Unfortunate In-between,
- Layers of Longevity, and
- Components and Composition
Later, Charlotte joined Clearleft as a junior developer, and up until that point, hadn’t been exposed to the idea of pattern libraries or design systems. But it soon became clear that she had found her calling. She wrote a brilliant article for A List Apart called From Pages to Patterns: An Exercise for Everyone and she started speaking about design systems at conferences like Beyond Tellerrand. Here, she acknowledges the changing terminology over the years:
Pattern portfolio is a term used by Natalie Downe when she started using the technique at Clearleft back in 2009.
Front-end style guides is another term I’ve heard a lot.
Personally, I don’t think it matters what you call your system as long as it’s appropriate to the project and everyone uses it. Today I’m going to use the term “pattern library”.
(Mark was always a fan of the term “component library”.)
Now Charlotte is a product manager at Ansarada in Sydney and the product she manages is …the design system!
Thinking back to my work on starting design systems, I didn’t realise straight away that I was working on a product. Yet, the questions we ask are similar to those we ask of any product when we start out. We make decisions on things like: design, architecture, tooling, user experience, code, releases, consumption, communication, and more.
It’s been fascinating to watch the evolution of design systems at Clearleft, accompanied by an evolution in language: pattern portfolios; front-end style guides; pattern libraries; design systems.
There’s been a corresponding evolution in prioritisation. Where Natalie was using pattern portfolios as a deliverable for handover, Danielle is now involved in the integration of design systems within a client’s team. The focus on efficiency and consistency that Natalie began is now expressed in terms of design ops—creating living systems that everyone is involved in.
When I step back and look at the history of design systems on the web, there are some obvious names that have really driven their evolution and adoption, like Jina Anne, Brad Frost, and Alla Kholmatova. But I’m amazed at the amount of people who have been through Clearleft’s doors that have contributed so, so much to this field:
I like the questions that the TELUS team ask about any potential components to be added to their design system:
- Is it on brand?
- Is it accessible?
- Has it been tested?
- Can it be reused?
They also have design principles.
Tuesday, June 26th, 2018
The Gov.uk design system is looking very, very good indeed—nicely organised with plenty of usage guidelines for every component.
Guidance on using components and patterns now follow a simple, consistent format based on task-based research into what users need in order to follow and trust an approach.
Monday, June 25th, 2018
Why Design Systems Fail by Una Kravets
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.
Primer by Github is a good example of this. You can download pre-made icons, colours, etc.
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
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.
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.
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:
- Solid architecture
- 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.
Monday, May 7th, 2018
Talking about scaling design can get very confusing very quickly. There are a bunch of terms that get thrown around: design systems, pattern libraries, style guides, and components.
The generally-accepted definition of a design system is that it’s the outer circle—it encompasses pattern libraries, style guides, and any other artefacts. But there’s something more. Just because you have a collection of design patterns doesn’t mean you have a design system. A system is a framework. It’s a rulebook. It’s what tells you how those patterns work together.
This is something that Cennydd mentioned recently:
Here’s my thing with the modularisation trend in design: where’s the gestalt?
In my mind, the design system is the gestalt. But Cennydd is absolutely right to express concern—I think a lot of people are collecting patterns and calling the resulting collection a design system. No. That’s a pattern library. You still need to have a framework for how to use those patterns.
I understand the urge to fixate on patterns. They’re small enough to be manageable, and they’re tangible—here’s a carousel; here’s a date-picker. But a design system is big and intangible.
Games are great examples of design systems. They’re frameworks. A game is a collection of rules and constraints. You can document those rules and constraints, but you can’t point to something and say, “That is football” or “That is chess” or “That is poker.”
Even though they consist entirely of rules and constraints, football, chess, and poker still produce an almost infinite possibility space. That’s quite overwhelming. So it’s easier for us to grasp instances of football, chess, and poker. We can point to a particular occurrence and say, “That is a game of football”, or “That is a chess match.”
But if you tried to figure out the rules of football, chess, or poker just from watching one particular instance of the game, you’d have your work cut for you. It’s not impossible, but it is challenging.
Likewise, it’s not very useful to create a library of patterns without providing any framework for using those patterns.
I would go so far as to say that the actual code for the patterns is the least important part of a design system (or, certainly, it’s the part that should be most malleable and open to change). It’s more important that the patterns have been identified, named, described, and crucially, accompanied by some kind of guidance on usage.
I could easily imagine using a tool like Fractal to create a library of text snippets with no actual code. Those pieces of text—which provide information on where and when to use a pattern—could be more valuable than providing a snippet of code without any context.
One of the very first large-scale pattern libraries I can remember seeing on the web was Yahoo’s Design Pattern Library. Each pattern outlined
- the problem being solved;
- when to use this pattern;
- when not to use this pattern.
Only then, almost incidentally, did they link off to the code for that pattern. But it was entirely possible to use the system of patterns without ever using that code. The code was just one instance of the pattern. The important part was the framework that helped you understand when and where it was appropriate to use that pattern.
I think we lose sight of the real value of a design system when we focus too much on the components. The components are the trees. The design system is the forest. As Paul asked:
What methodologies might we uncover if we were to focus more on the relationships between components, rather than the components themselves?
Thursday, January 25th, 2018
Design ops for design systems
Leading Design was one of the best events I attended last year. To be honest, that surprised me—I wasn’t sure how relevant it would be to me, but it turned out to be the most on-the-nose conference I could’ve wished for.
Seeing as the event was all about design leadership, there was inevitably some talk of design ops. But I noticed that the term was being used in two different ways.
Sometimes a speaker would talk about design ops and mean “operations, specifically for designers.” That means all the usual office practicalities—equipment, furniture, software—that designers might need to do their jobs. For example, one of the speakers recommended having a dedicated design ops person rather than trying to juggle that yourself. That’s good advice, as long as you understand what’s meant by design ops in that context.
There’s another context of use for the phrase “design ops”, and it’s one that we use far more often at Clearleft. It’s related to design systems.
Now, “design system” is itself a term that can be ambiguous. See also “pattern library” and “style guide”. Quite a few people have had a stab at disambiguating those terms, and I think there’s general agreement—a design system is the overall big-picture “thing” that can contain a pattern library, and/or a style guide, and/or much more besides:
- Styleguides, Pattern Libraries and Design Languages
- Design Systems vs. Pattern Libraries vs. Style Guides – What’s the Difference?
- Design Systems, Style Guides, and Pattern Libraries: Oh My!
- What’s the difference between style guides, pattern libraries, and design systems?
None of those great posts attempt to define design ops, and that’s totally fair, because they’re all attempting to define things—style guides, pattern libraries, and design systems—whereas design ops isn’t a thing, it’s a practice. But I do think that design ops follows on nicely from design systems. I think that design ops is the practice of adopting and using a design system.
There are plenty of posts out there about the challenges of getting people to use a design system, and while very few of them use the term design ops, I think that’s what all of them are about:
- Why Design Systems Fail
- Tips for in-house teams in a free market software culture
- Putting your design system into practice
Clearly design systems and design ops are very closely related: you really can’t have one without the other. What I find interesting is that a lot of the challenges relating to design systems (and pattern libraries, and style guides) might be technical, whereas the challenges of design ops are almost entirely cultural.
I realise that tying design ops directly to design systems is somewhat limiting, and the truth is that design ops can encompass much more. I like Andy’s description:
Design Ops is essentially the practice of reducing operational inefficiencies in the design workflow through process and technological advancements.
Now, in theory, that can encompass any operational stuff—equipment, furniture, software—but in practice, when we’re dealing with design ops, 90% of the time it’s related to a design system. I guess I could use a whole new term (design systems ops?) but I think the term design ops works well …as long as everyone involved is clear on the kind of design ops we’re all talking about.
Friday, January 5th, 2018
Tuesday, November 28th, 2017
A design system unites product teams around a common visual language. It reduces design debt, accelerates the design process, and builds bridges between teams working in concert to bring products to life. Learn how you can create your design system and help your team improve product quality while reducing design debt.
Monday, November 27th, 2017
A table of design systems, pattern libraries, style guides, or whatever we’re calling them.
Wednesday, November 1st, 2017
Advice on building design systems:
- If you can avoid being ambiguous, please do.
- Favor common understanding over dictionary correctness.
- Make great operations a priority.
- Don’t get trapped in defining things instead of explaining things.
Thursday, October 19th, 2017
Susan reviews Alla’s superb book on design systems:
If you’re interested in or wanting to create a design system or improve the one you have or get buy in to take your side project at work and make it part of the normal work flow, read this book. And even better, get your colleagues to do the same, so you’ll have a shared understanding before you begin the hard work to build your own system.
Susan also published her highlights from the book. I really like that!
Wednesday, August 9th, 2017
Thursday, August 3rd, 2017
At Patterns Day, Alice shared what she has learned from shepherding the Origami project within the Financial Times.
Saturday, July 29th, 2017
Jina invented an entirely new genre for her Patterns Day talk—autobiographical fantasy.
Friday, July 21st, 2017
Tuesday, July 11th, 2017
Patterns Day videos
Eleven days have passed since Patterns Day. I think I’m starting to go into withdrawal.
Fortunately there’s a way to re-live the glory. Video!
And remember, the audio is already online as a podcast.
The videos are coming! The videos are coming!
Here’s the first one: Laura Elizabeth opening the show at Patterns Day.
Thursday, July 6th, 2017
What’s the difference between style guides, pattern libraries, and design systems? – Joseph Fitzsimmons
Ah, the age-old question!
The Venn diagram here pretty much maps to how I think about these different terms, and how they relate to one another.
Monday, July 3rd, 2017
Paul has published the slides and transcript of his knock-out talk at Patterns Day. This a must-read: superb stuff!
Design systems are an attempt to add a layer of logic and reasoning over a series decisions made by complex, irrational, emotional human beings. As such, they are subject to individual perspectives, biases, and aspirations.
How does the culture in which they are made effect the resulting design?