EA to Drupal round trip

After some deliberation, we decided to currently go with the one-arrow option (detailed in The one error proposal.docx). For the long term, the Technical Framework - Option Common Repository should be the goal. The EA to Drupal import.odt could be an intermediary step to this.

Important arguments were

We should have only one single authority on the model (single source of information)
There is a large amount of information that has to go into the XMI to fully incorporate the information from the drupal
Some tasks may be easier in EA than in drupal
- Specialized skripts can be added to drupal to make these tasks more easy
We need a working system as fast as possible, one arrow allows that and does not obstruct the way to the better solutions