Java Object Model specification

The following is my experience in the work of the project, summed up a set of their own more convenient object model specification (entity model)-vo (object model interacting with the front end, the front-end refers to the page, mobile and Remote service calls)-xxxreq (the front-end sends the request JSON corresponding entity) -XXXRESP (the entity that corresponds to the response JSON returned to the front end)-po (the object model that interacts with the persistence layer, persistent layer refers to relational database, NoSQL, search engine, etc.)-xxx XXX represents a specific business object, such as: Userreq, use RRESP, user this simple object model compared to tedious Vo, Bo, DTO, Po easier to understand and use, the conversion between each other concise and straightforward (VO <-> po)

Java Object Model specification