In 11g, The entire BPM human task execution model changed to use ADF. You might want to get familiar with ADF and Managed beans and their scope variables given by default. You can create ADF Business Object based on your DB entities and use them in you ADF application generated from BPM human task. If you want to use them inside your process, best way to use through DB Adapters. Other better way to use is create Service using Oracle SOA and use that service inside BPM for better maintenance. Or you can try using Spring context activity usage ,which might call your db entities. Hope you got the answer.