By analyzing the business appearance layer and business rules layer analysis of the website, there is a problem with the business appearance of the business: there is a query business appearance object and an insertion and updated business appearance object in the same field object. What does this do not have special considerations for business modeling? If all business logics of a domain object are placed inside a business appearance object, then the method of querying is used by many domain objects, while inserting and modifying such a method is also exposed to other in this business appearance object. Is it unreasonable to use business objects? The query is used to be used and will be used by other business objects, which may be reasonable in a business object.
