Factory School --> Library --> Diagrammatica
Concept:
 The System of Memory
Designer:

Gilles Deleuze and Félix Guattari
Year:

1980
Source:

Mille plateaux (Translated as A Thousand Plateaus: Capitalism and Schizophrenia)
Description:
 In the system of memory, the formation of a memory implies
a diagonal that turns present A into representation A' in relation to the new present B, and A'' in relation to
present C, etc.

See Edmund Husserl, The Phenomenology of Internal Time-Consciousness.