Terminology

mHealth: an abbreviation for mobile health, a term used for the practice of medicine and public health supported by mobile devices
Encounter: having been at or below a distance from another person at the same time t during a period >= p
Contact tracing: investigating how a carrier of the virus (the 'index case') got infected.
Contact: an encounter that really resulted in close interaction between two or more people
Cluster: concentration of people in a perimeter, or in a vehicle, either simultaneous or over time
Point-of-Interest: a perimeter or building for which we want to monitor the visits
Movements: movement of people between two points
Path: a calculated route based on GPS measurements
Visit: having been at a given point-of-interest, either in open sky or in a building
Hotspot: Cluster with infections above a given threshold
Exposure: Contact with a possibly infectious person, approximated through an encounter with an infectious subject
Spreader: A subject who is the source or possible source of multiple infections. I.c. a person appearing in multiple Exposures and/or appearing in multiple Hotspots.
Transmission tracing: investigating how a carrier of the virus (the 'index case') got infected. This term more explicitly than 'contact tracing' encompasses other transmission routes beyond person-to-person transmission.

Glossary