Indeed, it includes recovering and renovating of the whole activity by which original state of the object was produced. Restoration is objective. It is a real and concrete activity as well as oriented to some material object. The activity of restoration is ubiquitous, which includes not onlyarcaeologist's one, but lay person's mundane activities. Restoration is not only oriented to some past state and past activity.
Restoration is between the past and the current activity system.
In some case, restoration is used for renovation of the current acitivity system. Restoration seemes to provide a new viewpoint for cognition and learning. In particular, restoration activity seemes as a concrete model for learning.