Evolution of our logo:

Our early DECONference logos (c. 1998) were based on a circle and square to represent the human mind-and-body or the humachine (human and machine), and a sinewave to represent water, and a square wave to represent technology.

DECONference 2021 was based on 3 intersecting circles, blue for water, red for human, and green for technology (color of early computer displays, circuitboards, etc.). The three circles formed the basis of the Mattson-Mann taxonomy/ontology (Swim/Drink/Fish, etc.). [Proceedings, Page 7].

DECONference 2022 saw this migrate to three distinct shapes to improve accessibility to those with impaired color vision. We now have a distinct blue drop, red circle, and green rectangle to represent water, human, and technology, respectively:

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Present-day logo as an aid to the taxonomy/ontology:

The blue drop, red(or reddish) circle, and green rectangle form the taxonomy/ontology/graph elements, as shown rightmost below: