Folder Description The "BusinessObjects" project folder is intended for storing code of your data model. In XAF, a business object can be implemented as an ORM-based persistent class or a non-persistent POCO. Relevant Documentation Business Model Design https://docs.devexpress.com/eXpressAppFramework/113461 Non-Persistent Objects https://docs.devexpress.com/eXpressAppFramework/116516 Data Types Supported by built-in Editors https://docs.devexpress.com/eXpressAppFramework/113014 Ways to Add a Business Class (XPO) https://docs.devexpress.com/eXpressAppFramework/112847 Ways to Implement Business Logic https://docs.devexpress.com/eXpressAppFramework/113710 Debugging, Unit and Functional Testing https://docs.devexpress.com/eXpressAppFramework/112572