For data design projects, there are no manual migration steps required. You can simply open a workspace that was created in InfoSphere Data Architect Version 7.0.x in InfoSphere Data Architect Version 7.5.
For data development projects, you should migrate the database connection that is associated with the project.
If you want to use a JDBC driver that is included with the InfoSphere Data Architect Version 7.5 product for a connection that was created in InfoSphere Data Architect Version 7.0.x, you must modify the connection properties for the connection so that the driver class path reflects your InfoSphere Data Architect Version 7.5 installation location.
This step is highly recommended, because the version of the JDBC driver that is included with Version 7.5 of InfoSphere Data Architect contains functionality that is being exploited by new features in the product.
To migrate a database connection from InfoSphere Data Architect Version 7.0.x to InfoSphere Data Architect Version 7.5: