Abstract: A method and system for contact tracing and alerting anonymously tracks persons within and across digitally modeled areas using registration stations within the area having scannable digital codes which are unique to the area. Upon being alerted to a contagion situation, either from a laboratory or from an area administrator, the system compares electronic visit tickets unique to each person's visit to determine overlap and generates at least one of an exposure event notifications and a contamination event notifications responsive to one or more determinations made by the comparing.

Abstract: An apparatus for information privacy assurance includes a data processing engine to restrict access to data received from a plurality of data sources and to a predefined data relationship query. The data processing engine includes a data input component restricted to receive the data from the plurality of data sources, a data relationship component configured to generate data relationships associated with the data, a query input component restricted to receive the predefined data relationship query associated with the data relationships, a query execution component configured to execute the predefined data relationship query, and a data output component restricted to render a result including information associated with an execution of the predefined data relationship query.