Information Scent and Link Label Contract

Large Theory

When users choose a web path, they estimate whether an entry point will answer their question and how much effort it will take. Link text, region context, card title, summary, icon, external-link indicator, permission hint, and prior URL/brand knowledge all create information scent. Strong scent makes users confident; weak scent causes backtracking, searching, hesitation, and mistakes.

Small Points

1. Link text names the destination and object, for example view license metadata template rather than learn more.
2. Different URLs on one page should not share the same vague label; screen-reader users often navigate a list of links, where repeated labels lose meaning.
3. When a whole card is clickable, the card title should be the primary link; secondary actions are separated clearly so card clicks and inner buttons do not conflict.
4. External links, authenticated content, paywalls, downloads, new tabs, and workflow exits need explicit hints.
5. Search results and resource cards preserve title, category, summary, source, and primary action so users can decide at the list level.
6. Chinese and English labels should each make sense independently, not only through surrounding prose.

Design Judgment

If all page links are extracted into a list and users can still infer destination, value, and permission/external cost, the labels are healthy. If the list is mostly view, open, more, or details, the information architecture is unfinished.

Implementation Notes

Create a label contract for Link/Card/ButtonLink: visibleLabel, destinationType, objectName, scope, requiresAuth, external, opensNewTab, download, ariaLabel, and contextSummary. In resource and knowledge cards, use the title as the primary link and use verb-plus-object button text such as open resource, view case, or enter review queue. External links need visible and aria hints, not only color.

Counterexamples/Risks

The card title is not clickable and only read more is; multiple details links point to different objects; external resources have no external hint; authenticated content lacks lock or permission copy; the title does not match the destination and becomes clickbait; underlines are removed and links rely only on color.

Case Study

NN/g's information scent theory treats link labels, page context, and prior knowledge as cues for judging target value. USWDS asks for unique, meaningful link text and warns against relying only on color or repeated read more labels. GOV.UK and public-service design systems usually preserve visible link affordance in body text and on dark surfaces. Applied to Interface-Lab, knowledge and resource cards should combine title, category, summary, and open/view actions into a clear retrieval path instead of letting agents generate generic CTAs.

Source Links

NN/g Information Scent: https://www.nngroup.com/articles/information-scent/ USWDS Link: https://designsystem.digital.gov/components/link/ GOV.UK Links: https://design-system.service.gov.uk/styles/links/ Home Office Link Accessibility: https://design.homeoffice.gov.uk/accessibility/page-structure/links