Get the course! 10h video + UX training
8 min read

Designing For Stress and Emergency

Practical guidelines on how to design time-critical products to prevent errors and drive accuracy.


You can find more details on design patterns and UX strategy in How To Measure UX 🍣 — with a live UX training coming up this year. Free preview.

No design exists in isolation. As designers, we often imagine specific situations in which people will use our product. It might be indeed quite common — but there will also be other — urgent, frustrating, stressful situations. And they are the ones that we rarely account for.

So how do we account for such situations? How can we help people use our products while coping with stress — without adding to their cognitive load? Let’s take a closer look.

Study Where Your Product Fits Into People’s Lives #

When designing digital products, sometimes we get a bit too attached to our shiny new features and flows — often forgetting the messy reality in which these features and flows have to neatly fit. And often it means 10s of other products, 100s of other tabs and 1000s of other emails.

An example of a split screen with two power consumption dashboards on a 22 inch screen.

Design never exists in isolation — it must fit user’s context and their expectations to do its job. (Image credit: Engine And Power Dashboard)

If your customers have to use a slightly older machine, with a smallish 22" screen and a lot of background noise, they might use your product differently than you might have imagined — e.g. splitting the screen into halves to see both views at the the same time (as displayed above).

Chances are high that our customers will use our product while doing something else, often with very little motivation, very little patience, plenty of urgent (and way more important) problems and an unhealthy dose of stress. And that’s where out product must do its job well.

What Is Stress? #

What exactly do we mean when we talk about “stress”? As H Locke noted, stress is the body’s response to a situation it cannot handle. There is a mismatch between what people can control, their own skills, and the challenge in front of them.

If the situation seems unmanageable and the goal they want to achieve moves further away, it creates an enormous sense of failing. It can be extremely frustrating and demotivating.

SOS Emergency System

Stress has many levels. The key is to not let it spiral into dangerous zones. (Image credit: Alypain)

Some failures have local scope, but many have a far-reaching impact. Some people can’t choose the products they use for work, so when a tool fails repeatedly, it affects the worker, the work, the colleagues and processes within the organization. Fragility has a high cost — and so does frustration.

How Stress Influences User Interactions #

Stress disrupts attention, memory, cognition, and decision-making, making it difficult to prioritize and draw logical conclusions. In times of stress, we rely on fast, intuitive judgments, not reasoning. Typically it leads to instinctive responses based on established habits.

Designing For Stress And Emergency

Poorly designed products can add to the cognitive load and lead to mistakes.

Under pressure, people often make decisions hastily, while others get entirely paralyzed. Either way is a likely path to mistakes — often irreversible ones and often without time for extensive deliberations.

Ideally, these decisions would be made way ahead of time — and then suggested when needed. But in practice, it’s not always possible. As it turns out, a good way to help people deal with stress is by providing order around how they manage it.

Single-Tasking Instead Of Multi-Tasking #

People can’t really multi-task, especially in very stressful situations or emergencies. That’s why more simpler pages might work better than one complex page.

Order means giving users a clear plan of action to complete a task. No distractions, no unnecessary navigation. We ask simple questions and prompt simple actions, one after another, one thing at a time.

Designing For Stress And Emergency

Poorly designed products can add to the cognitive load and lead to mistakes.

An example of the plan is the Task List Pattern, invented by fine folks at Gov.uk. We break a task into a sequence of sub-tasks, describe them with actionable labels, assign statuses and track progress.

To support accuracy, we revise default settings, values, presets, and actions. Also, the order of actions and buttons matters, so we put high-priority things first to make them easier to find. Then we add built-in safeguards (e.g., Undo feature) to prevent irreversible errors.

Supporting In Emergencies #

The most effective help during emergencies is to help people deal with the situation in a well-defined and effective way. That means being prepared for and designing an emergency mode. E.g. to activate instant alerts on emergency contacts, distribute pre-assigned tasks and establish line of communication.

Designing For Stress And Emergency

Rediplan App to prepare and act in case of emergencies.

Rediplan App by Australian Red Cross is an emergency plan companion that encourages citizens to prepare their documents and belongings with a few checklists and actions — including key contracts, meeting places and medical information, all in one place.

Just Enough Friction #

Not all stress is equally harmful though. As Krystal Higgins points out, if there is not enough friction when onboarding new users and the experience is too passive or users are hand-held even through the most basic tasks, you risk that they won’t realize the personal value they gain from the experience and, ultimately, lose interest.

Bell Curve For Optimal User Onboarding

We need to find the sweet spot between value realization and friction to create experiences that keep users engaged. (Image credit: Krystal Higgins)

Design And Test For Stress Cases #

Stress cases aren’t edge cases. We can’t predict the emotional state in which a user comes to our site or uses our product. A person looking for specific information on a hospital website or visiting a debt management website, for example, is most likely already stressed. Now, if the interface is overwhelming, it will only add to their cognitive load.

Stress-testing your product is key to preventing this from happening. Set up an annual day to stress test your product and refine emergency responses. To check if fallbacks work as expected and if the current UX of the product helps people manage failures and exceptional situations well enough.

Wrapping Up #

Emergencies will happen eventually — it’s just a matter of time. With good design, we can help mitigate risk and control damage, and make it hard to make irreversible mistakes. At its heart, that’s what good UX is exceptionally good at.

Key Takeaways #

People can’t multi-task, especially in very stressful situations.

  • Stress disrupts attention, memory, cognition, decision-making.
  • Also, it’s difficult to prioritize and draw logical conclusions.
  • Under stress, we rely on fast, intuitive judgments — not reasoning.
  • It leads to instinctive responses based on established habits.

Goal: Design flows that support focus and high accuracy.

  • Start with better default settings, values, presets, actions.
  • High-priority first: order of actions and buttons matters.
  • Break complex tasks down into a series of simple steps (10s–30s each).
  • Add built-in safeguards to prevent irreversible errors (Undo).

Shift users to single-tasking: ask for one thing at a time.

  • More simpler pages might work better than one complex page.
  • Suggest a step-by-step plan of action to follow along.
  • Consider, design and test flows for emergency responses ahead of time.
  • Add emergency mode for instant alerts and task assignments.

Useful Resources #

Related articles