From IBM InfoSphere
If you have data models in InfoSphere and want to leverage them in Hackolade Studio, you need to fist export them to XSD, following the instructions below. You should first consult this page for an overview of the import functionality in Hackolade Studio.
If the XSD does not contain primary key and foreign key constraints, this reverse-engineering process cannot import them, but it is still possible to use the functionality to Infer PKs & FKs.