4. What is a Link?

Data that are acts, biography moments, or relationships are stored as links between records in the name, event, intervention, and vocab tables. How the link is represented in the actual database depends on the implementation of the rules (see the implementation sections for examples). In this section, the idea that the name, event, intervention, and vocab elements are connected together to form new data structures will be explored in more detail.

No matter why or how the agency knows a certain person, in this data model that person will be represented by a single record in the NAME table. If that person is the victim of a particular act (back to Juan Pueblo who was shot by Lt. Mendoza), the KEY (see glossary) for Juan Pueblo will be associated in a link, called a rule-instance, with the key for the idea "executed by shooting" and with the key for Lt. Mendoza. The keys are associated in such a way that Pueblo's key is in the "victim" position, the "executed by shooting" is in the "action" position, and Mendoza's key is in the "perpetrator" position. The positions define roles in the rule-instance.

Information stored in this way is very flexible. If fully implemented, the link table enables the full viewing of data from any angle, so that, for example, the user can trace all the people thought to be victims of a given perpetrator; alternatively, if a victim has been the subject of several violations, all the perpetrators of that victim can be seen from the victim's record. The link table assigns roles to the actors in a link, so if the data is viewed from the point of view of the perpetrator it is clear that the perpetrator is the subject, the act the verb and the victim the object.

If a person has multiple roles in an event, or is involved in different roles in different events, all of that information is available either via the person's record (which would show all the acts in which this person was involved in any role), or by each of the events in which the individual acts were classified by the agency.


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