Deprecation warning

The documentation for Tracker 3 is found on the Tracker 3 website. This page is preserved as a reference for older versions.

User documentation


Tracker is built around a common well-defined database schema or 'ontology' and it is worth understanding this schema on a basic level before anything else. There are two approaches to using Tracker:

  • Application developers: interested on querying the data in the store (and maybe updating few bits there)
  • Platform developers: interested on extending tracker adding new sources of data (miners) or supporting new file formats (extractors)

Data querying or updating:

Ontologies which describe how the data is related (common for all the previous components):



W3C standard query language SPARQL standards (for updates and queries):

How to use SPARQL:



How Do Things Work?

Client Side

Server Side

Projects/Tracker/Documentation (last edited 2020-07-27 13:28:48 by SamThursfield)