Lately I have been working on Semantic Web technologies. Specifically, I have created an ontology using Protege 4.3.0 (an OWL ontology building tool). For those just getting started, there is this great tutorial for building an OWL ontology with Protege that can be found here.
The main concepts of this tutorial were extracted and encoded to a tree- diagram, so that anyone may quickly familiarize with all those new key-concepts mentioned and understand their underlying hierarchy at a glance.
The diagram was created using dataTracker. Two files are attached:
A .png file (image) of the tree-diagram.
A .dt file (dataTracker file) to open and process it with dataTracker at your will.