change!

Long long time ago...

This is the face of semantic web technology, left.













Nowadays it become like this, below right.


It's right that there one thing that constant in this world c h a n g e!
Even in an imminent computer science standardization organization, this change happens. In only four years, the layers are changed!
Imagine if TCP/IP layers are changed! Internet goes doom!


But in my opinion everything went smoothly, the old layer structure is such a guidance or template that ready to refined. I've learnt OWL in the old time, and it become standard now. In that time there were several other that had the same functionality as OWL, but since OWL was developed by W3C, it become standard for current layer.

by the way, it's an interesting artefact.