A brief history of the events that would ultimately enable marketers and technologists the ability to create and deploy location based tracking and marketing programs.
It started with Geo Coding
In the 1960 Census of Population and Housing, questionnaires were mailed to respondents and picked up from each household by enumerators. This demanded geocoding capability and the development of an address coding guide (ACG). The Data Access and Use Labs created to accomplish this were responsible for creating today’s location based management industry.The first geocoding efforts permitted only street addresses to be digitized. Geocoding is vitally important for crime mapping since it is the most commonly used way of getting crime or crime-related data into a GIS. Crime records almost always have street addresses or other locational attributes, and this information enables the link between the database and the map.
How do applications calculate distance between two points? They read the x-y coordinates representing their locations on a map.
For more information on the connection between fighting crime and location based tracking technology, I highly recommend reading “Mapping Crime. Principle and Practice” by the National Criminal Justice Reference Service.