adding notes and nodes along a line graph like google analytics, adding pins to map locations, establishing a reference point with additional information. So: A little thing that indicates, and clicking gives you a little more data, which may well NOT be in the little icon, hence it's not just an Icon (which see) and is a different item. ALSO see the eReader project where the highlight can be selected and show more info (not a Tooltip, though, as that is limited, read only, etc.)

This is not a tooltip. Deliberate action needed to reveal the additional info, or always there. tooltips are transient, initiated by hover or automatically presented when the system determines the user needs help -- such as first time, or a change in the system since last visit (put these notes over there when done here). The info in a tooltip is also a helpful sort of label or content add on. It is not content itself which it should be in an annotation.

Problem

A data point in a dense array, or within a graphical representation of a set of information, may be selected to show additional information.

Solution

Graphical information displays -- such as maps and graphs -- are often the clearest, most information-dense way of displaying a set of data. However, conventional methods of drilling in deeper such as the Link or Button are unsuitable for these items.

A special type of widget is used instead, exemplified by the "pinpoint." An iconic element points to the

Variations

Label all the time (gmaps desktop)

Reveal label - in place (gmaps as I have it now)

Reveal label - somewhere else (strip off to the side, GPS60)

Interaction Details

Hover or click to see

Presentation Details

Antipatterns

Examples