Atlas · DS191 · Interaction pattern: Collaboration

Presence-Aware UI

Signals showing who is present and which element they are working on.

• Status in 2026: Established. Documented and in wide use.
• Trend 2027 to 2030: Rising (an editorial projection, not a forecast).
• The term: Known technical term or standard.

Definition

Signals showing who is present and which element they are working on.

Traits

• remote cursors
• viewing indicators

Typical settings: Collaborative apps.

When to use it, and when not

Consider it when the task and motivation match: distributed teams. Typical settings: collaborative apps.

Be careful when the risk below would hurt the main task: personal data or noise.

UX risk and how to reduce it

Risk: Personal data or noise.

Mitigation and accessibility: Presence and privacy controls.

How to check: Test a prototype against a plain baseline on a real task: completion, time, errors, comprehension, accessibility and preference, segmented by context rather than by stereotype.

Evidence

Indirect: the sources support underlying principles, not a preference for this style.

The sources below support the principles that apply to this term. None of them shows that this style works better or is preferred.

• W3C Web Accessibility Initiative 2021 (Standard or guideline): Cognitive accessibility guidance.
• Hassenzahl 2004 (Supported): Pragmatic and hedonic qualities.

Heuristic scales

Relative editorial judgements from 1 to 5. They are not results of a study and not a measure of quality.

Visual complexity heuristic

3 / 5 (1 is few visual elements, 5 is many layered elements)

Expressiveness heuristic

2 / 5 (1 is restrained, neutral, 5 is highly expressive)

Information density heuristic

4 / 5 (1 is sparse, 5 is dense)

In our library

No design-style recipe in @codeatlasdev/ui implements this term yet. You can still build it from the --ca-* tokens: see Theming.

Prompt for your AI

Paste this into a coding agent. It carries the trade-offs, and asks for a baseline to compare against.

Design this interface in the "Presence-Aware UI" direction (interaction pattern, collaboration): Signals showing who is present and which element they are working on.
Visual and interaction traits to use: remote cursors, viewing indicators.
Main UX risk: Personal data or noise. Mitigate it: Presence and privacy controls.
Keep it accessible to WCAG 2.2 AA: contrast, visible focus, keyboard operation, 24 px minimum targets, reflow at 320 CSS px and reduced motion.
Keep the content, hierarchy and behavior the same as a plain baseline so the two can be compared. Do not claim the style performs better; the choice should be validated with users.