[ https://issues.jboss.org/browse/TEIIDDES-2401?page=com.atlassian.jira.plu... ] Ramesh Reddy commented on TEIIDDES-2401: ---------------------------------------- In the Teiid code, the metadata repository is a pluggable concept. A user can write their own metadata factory [repository]. Currently we have .INDEX(.vdb files), DDL, NATIVE (reading from source) support. Explain why do you think they need to discover and talk to each other? They each represent a metadata fragment in a VDB. The vdb.xml file is one defining them together as one artifact. They are not tools, it is just metadata, they themselves represent the views. When a user is writing a higher level metadata factory such as representing the view model, they need to know what else is available, so that they can make use of it in their transformations. That is where tools like Designer come in with nice GUI to make them design that. However, Teiid will still do validation at the deployment time, what they are referring to in their view transformations is in fact available and valid. -- This message was sent by Atlassian JIRA (v6.3.11#6341)