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Design Principles

We’ve listed our design principles below, with a brief description about how to use them.

For each principle, we have also shared some posts by people and teams we admire. We hope you will learn with us, share information with your teams, and become part of a wider conversation about how we can push services forwards.

 

Start with user needs

Service design starts with identifying user needs. If you don’t
know what the user needs are, you won’t build the right thing. Do
research, analyse data, talk to users. Don’t make assumptions. Have
empathy for users, and remember that what they ask for isn’t
always what they need.

Do less

If you’ve found something that works, make it reusable and shareable instead of reinventing the wheel every time.  This means building platforms and registers others can build upon,
providing resources (like APIs) that others can use, and linking to
the work of others. Concentrate on the irreducible core.

Design with data

In most cases, we can learn from real world behaviour by looking at how customers use existing services.
Let data drive decision-making, not hunches or guesswork. Keep doing that after taking your service
live, prototyping and testing with users then iterating in response. Analytics should be built-in, always on and easy to read. They’re an essential tool.

Performance data for government services

Do the hard work to make it simple

Making something look simple is easy, but making something simple to
use is hard — especially with complex underlying systems.

Remember that you have a duty of care to the user. Don’t take “It’s always been that way” for an answer. It’s harder
work to make things simple, but it’s the right thing to do.

Iterate. Then iterate again.

The best way to build good services is to start small and iterate wildly. Release Minimum Viable Products early so you can test them with actual users. Move from Alpha to Beta to Live – adding features, deleting things that don’t work and making refinements based on feedback.

Iteration reduces risk. It makes big failures unlikely and turns small failures into lessons.

If a prototype isn’t working, don’t be afraid to scrap it and start again.

This is for everyone

Accessible design is good design. Everything we build should be readable, intuitive and inclusive. If we have to
sacrifice elegance — so be it. We’re building for needs, not audiences. We’re designing for the whole country, not just people who are used to using the web, or who are knowledgeable in our particular subject matter.

The people who find our services hardest to use, are often those who need them most. Let’s think about those people from the start.

    Understand context

    We’re designing for people, so we need to know how they will use our
    services. Will they be in a library? Will they use a phone? Are they
    only really familiar with Facebook? Or have they never used a website before?

      Build digital services, not websites

      A service is something that helps people to do something. Our job
      is to discover user needs and build a service to support those needs.

      Often, building a digital service will include a new website or webpages, but the process doesn’t stop there. The digital world has to connect to the real world, so we have to think about all aspects of a service, and
      make sure they add up to something that helps the user get what they need.

      Be consistent, not uniform

      If possible, use the same language and design patterns
      for everything you do. This will help people to become familiar with our services, learn how to use them more quickly, and recognise them as ours. When this isn’t possible, we should make sure our
      approach is consistent, by following these principles and the wider values and design processes of the team.

      When we find patterns that work we should share them, and
      talk about why we use them. But that shouldn’t stop us from
      improving or changing them in the future when we find better ways of
      doing things or the needs of users change.

      Share knowledge and code: it makes things better

      We should share what we’re doing whenever we can. With
      colleagues, with users, with the world. Share code, share
      designs, share ideas, share intentions, share failures. The more
      eyes there are on a service the better it gets — howlers are
      spotted, better alternatives are pointed out, the bar is raised.

      Much of what we’re doing is only possible because of open source
      code and the generosity of the web design community. We should
      pay that back.