Take the informational technology (IT) and operational technology (OT) teams that keep technology ticking over in most companies of any size. IT used to be something that happened in the datacenter or office. OT was out in the field, in the shape of industrial control or production line systems, remote systems in inhospitable or extreme environments. Or it could simply refer to technology embedded in dispersed operations, such as retail branches, which was decoupled from central IT. It was literally at the “edge” of the organization.