To interaction designers, the word architecture describes technological arrangements that, like buildings, are costly to build, are at least metaphorically scaled to be inhabited, are infrastructural in use, and are irreversible as results. Like buildings, computer networks in particular have been recognized as representations of their owners, major fixed assets, and agents of organizational change. As long as those networks were experienced through the desktop computer, they remained fairly separate from previous forms of architectural experience. but the more that they involve mobile and embedded systems, and the more that they develop unique aggregations in particular places, the more digital architectures become part of a physical structure. This is true both in terms of objects and experiences. When operations are collected in locally distinct, relatively persistant, and bodily memorable ways, the activity takes on aspects of architecture.
— Malcolm McCullough, Digital Ground (p. 153-4). (Emphasis mine.)