Currently, the EDC connection allows you to connect to a database. However, the mapping in the vocabulaire is directly linked to that database connection. This means that it is almost impossible to have a easy OTAP deployment paradigma: If you have a OTAP street, that means that you have also 4 databases (one in each environment). One would expect that the business engineer models the vocabulaire to connect to the O database. If the model is according to expected behavior IT will want to precompile it on T (and later A and P) using the database properties files from the respective environments. However, currently this is impossible because the vocabulaire contains hard relations to the database connection. A search and replace in the vocabulaire will solve this, but that is not a desirable situation.