Design Ethics in Product Design: Beyond Dark Patterns

What design ethics in product design is, why it goes beyond dark patterns, and how to decide when an interface persuades legitimately or manipulates.

info Quick Definition
Design ethics in product design is the practice of assessing whether an interface respects the decision-making capacity of the people who use it. It goes beyond dark patterns: it includes legitimate persuasion, privacy, accessibility, and the harm a product can cause even when no one meant it.

What are dark patterns, and where do they come from?

The term is associated with Harry Brignull, who started the site darkpatterns.org in 2010 to document interfaces designed to deceive. That site, now deceptive.design, now prefers the name “deceptive patterns” and maintains a taxonomy of 18 categories. They include fake urgency, fake scarcity, fake social proof, hidden costs, hidden subscriptions, hard-to-cancel flows, confirmshaming, and preselection.

The site’s definition focuses on deception: patterns that make people do things they did not mean to do. That is the key to telling a dark pattern apart from a bad interface. To understand why a pattern works even when people notice it, the Fogg behavior model describes the motivation and ability that design activates.

Why does this matter for a junior designer?

Because a dark pattern can start as a growth decision that seems reasonable. A pre-checked box, a “last units left” counter, or a cancel button buried in a menu gets approved in a meeting for its effect on a metric. A junior who can recognize them can raise the question before they are built.

Ethics is also no longer only a personal matter. The US Federal Trade Commission has published a report on the topic, and the European Union’s Digital Services Act (DSA) prohibits certain deceptive design tactics. It is worth knowing what they say before you defend a decision to a business team.

What does the FTC say?

The FTC’s 2022 report, Bringing Dark Patterns to Light, groups several practices that affect consumers. The FTC’s press release of September 15, 2022 summarizes four tactics:

  • Misleading consumers and disguising ads, for example ads that look like independent content, misleading comparison sites, or fake countdown timers.
  • Making it difficult to cancel subscriptions or charges.
  • Burying key terms and junk fees until late in the purchase.
  • Tricking consumers into sharing data, with privacy choices designed to steer people toward giving away their most personal information.

What does the European Union say?

Article 25 of the DSA (Regulation (EU) 2022/2065) prohibits providers of online platforms from designing, organising, or operating their interfaces in a way that deceives or manipulates users, or that otherwise impairs their ability to make free and informed decisions. It does not apply to practices already covered by the Unfair Commercial Practices Directive or the GDPR. It also lets the European Commission issue guidelines on specific practices, such as giving certain choices more prominence, repeatedly asking for a choice already made, or making it harder to terminate a service than to subscribe to it. The European Commission sums it up on its DSA page as a ban on dark patterns.

What does research say about the definition?

Mathur, Mayer, and Kshirsagar (2021) analyze the literature on dark patterns and conclude there is no single shared concern and no consistent definition. That matters day to day: if you use the term, explain the criteria you apply.

A practical test, which comes from this wiki rather than from the sources, is to ask three questions. Does the design make the person act against what they wanted? Does the deception go unnoticed, or is the key information buried? Does the benefit go to the company at the person’s expense? If the answer to all three is yes, you are probably looking at a dark pattern. If not, you may have a bad interface, which still needs fixing, but with a different diagnosis.

How do you make an ethical decision in design?

  1. Describe what the user wants to achieve, in their own words, before describing what the company wants.
  2. Review each persuasion decision with an intent question: would the user choose this if they fully understood it?
  3. Make costs and exits visible. Cancelling, asking for a refund, and declining an offer should be as clear as accepting one.
  4. Ask only for the data you need and explain what it is for.
  5. Test with people who do not know the product. Ask what they think will happen when they press each button.

These steps do not resolve the dilemmas, but they give you a basis for discussing them. The article on choice architecture shows how the order of options influences decisions without forbidding anything, and it is a good starting point for talking about nudges.

When should you NOT call something a dark pattern?

  • When it is a bad interface through carelessness. An unclear button can be a design error with no intent to deceive. Calling it a dark pattern changes the conversation and can make the team defensive.
  • When the friction protects the user. A confirmation before a large payment or before deleting data is intentional friction, and it is correct.
  • When the line is debatable. A pattern can be deceptive in one context and appropriate in another. For example, a double confirmation before cancelling can prevent mistakes in a product that charges a lot, but it can be a trap in one that uses it to retain users.

Example

Illustrative example: a streaming app wants to reduce cancellations.

  • Proposal A: the cancel button sits in the help section, with three steps and an offers screen.
  • Proposal B: the cancel button sits in settings, with a single confirmation. Before cancelling, the user sees a one-month pause offer, and the option to keep cancelling is just as visible.

Proposal B also aims to retain users, but it keeps the exit clear. That difference is what separates a business decision from a deceptive pattern. An ethical review does not ask you to stop retaining users; it asks that users can decide without traps.

If the product uses AI to personalize those offers, the article on AI dark patterns covers the specific risks of that combination.

Common mistakes

  • Treating all friction as a dark pattern, without looking at intent.
  • Using “dark pattern” as a label for any bad experience.
  • Quoting Brignull’s definition without checking the original text.
  • Presenting the line between persuasion and manipulation as settled.
  • Defending a deceptive decision by saying “everyone does it”.
  • Forgetting that privacy, accessibility, and harm to vulnerable groups are also part of design ethics. See inclusive vs. accessible.

Sources

Frequently asked questions

What is a dark pattern?
According to deceptive.design, Harry Brignull’s site, dark patterns are interface patterns that trick people into doing things they did not mean to do. Its current taxonomy has 18 categories, including fake urgency, hidden costs, and hard-to-cancel subscriptions.
Is every bad user experience a dark pattern?
No. Deceptive.design defines these patterns as ones that trick people into doing things they did not mean to do. An interface that is confusing through carelessness is a different problem, even though both can cause harm.
Is there a single definition of a dark pattern?
No. Mathur, Mayer, and Kshirsagar (2021) note that the literature lacks a consistent definition and a single shared concern, so the term should be used with explicit criteria.
What does the FTC say about dark patterns?
Its 2022 report, Bringing Dark Patterns to Light, identifies practices such as disguised ads, hard-to-cancel services, hidden terms with extra charges, and deception about sharing data.
Where is the line between persuasion and manipulation?
It is an open debate. Do not present a single line as consensus. A deceptive pattern in one context can be appropriate in another, such as double confirmation before cancelling a purchase by mistake.