A cooArchi should be a friendly interface, and it should be easy to use. As it is at first very differently looking compared to other archiving or crowdsourcing interfaces and allows many possible ways of use, the key of the interface language is to invite casual to an experiment or game. For this the basic functions of the game have to be at best self-evident, and both social and technological aspects have to be worded in an open and opening style.
The interface language should create a community environment of distanced archiving together. The language sets the environment and the narrative of a community archive