micro-location

The macro-location of industry and population tends towards an ever-increasing concentration in a limited number of area; their micro-location, on the other hand, towards an ever-increasing diffusion or "sprawl". In this case it is convenient to describe under the heading of macro-location the analysis of the location of population and industry as between regions and groupings of industrial towns; and the term micro-location to describe in more detail how they are located within such areas.

The ability to produce well defined electric fields with these electrode arrays enables one to electrophoretically transport those charged particles to or from any micro location on the surface of the device submerged in the analyte solution.

When used in this manner, proximity technologies are said to be providing micro-location, because they can provide much more accurate information than GPS, especially in buildings where GPS does not operate with high accuracy (or possibly even at all). In a micro-location scenario, proximity can operate as a tighter description of where you are, but that misstates the power of proximity.

Using BLE, a merchant or other provider can define more targeted "micro-locations" to trigger an alert, in some cases requiring that you be in the presence of an iBeacon in order to validate a Passbook entry.