Who is online, who is viewing, who is editing

What it is

The most basic layer of awareness information in a collaborative system answers three escalating questions: who is online right now, who is currently viewing this document or space, and who is editing it. Together these constitute presence awareness (also informal awareness) — the raw material for all lightweight coordination in a shared workspace. The three levels are not equivalent: online means the person is in the system, viewing means they are facing this content, editing means the content is actively being changed. Treating "online" as if it meant "viewing" or "editing" is the most common semantic confusion in presence design.

Why it happens

In a physical shared space this information is free: peripheral vision and hearing tell you who is in the room, who has stepped up to the same whiteboard, who is holding the marker. Remote collaboration removes that layer, and unless the system explicitly restores it, collaborators have only two options — ask out loud (each inquiry is an interruption) or act blindly (bet that nobody is editing, and collide if wrong). Each level supports a distinct coordination decision: the online level answers "can I reach this person now," the viewing level answers "does my reference have their attention and context right now," and the editing level answers "will my action collide with someone else's." Remove a level and the corresponding decision degrades back to asking or betting. Presence awareness is thus not decorative sociability but a functional substitute for physical co-presence.

Studying it

• Paradigm: instant-messaging buddy lists were the classic site for presence research — usage logs and interviews analyzed how people use online lists to decide whom to contact and when; field studies of distributed teams examined which presence information members actually maintain, and how.
• Variables: granularity of presence (mere online/offline vs. online plus current activity vs. online plus the object being viewed) and presentation (list vs. avatars embedded in content) are typical independent variables; dependent measures include frequency of initiated contact, pre-contact checking behavior, and rates of conflicting or duplicated work.
• Methodological caveat: the value of presence depends heavily on pre-existing relationships. Buddy-list studies repeatedly found the list sustains strategic awareness — knowing who is reachable and when — rather than constant monitoring. Concluding "presence lists are useless" from lab pairings of strangers and generalizing to real teams is the recurring ecological-validity trap here.

Where it stops holding

Presence awareness is most valuable in small teams of people who know each other. As headcount grows, "who is online" turns from signal into noise — nobody scans a fifty-person list — and coarser aggregates take over ("3 people are in this section"). The semantics of each level also drift: for always-online users the online flag carries almost no information, and mobile background presence further decouples "online" from actual reachability. In contexts where exposure itself is sensitive, users pollute the signal deliberately — idling, appearing offline — which collapses the whole layer (see the surveillance-risk leaf in this group).

Applying it

• Provide online, viewing, and editing as three separate signals rather than one blended "active" state; render each in its lightest form (list dot, avatar beside content, cursor).
• Put viewing and editing indicators next to the shared object itself, not on a separate status page — the value of awareness decays with every unit of look-up cost.
• Offer aggregated forms for large groups (count of present people, active regions) and individual forms for small ones, switching by the scale of the shared space.
• Verification: track conflicting or duplicate edits before and after introducing presence, and sample-interview users on whether they check status before contacting someone. If the common answer is "no," the layer has already become decoration.

Related

• Same group: V2.01.2 Presence information reduces duplicated and conflicting work · V2.01.3 Presence exposure is itself a surveillance risk
• Nearby: V2.02 Workspace Awareness · V2.08 Availability and Interruption · V1.01 Time-Space Matrix
• Search terms: presence awareness · informal awareness · buddy list · peripheral awareness