The above architecture perfectly lights up the Java design on how each and every aspect of java works as you can see how the transactions takes place from client to application logic and then from application logic to the backend database (or any data related to directory or other servers) along with which implemention of good business logic also exists. Business Logic involves in standardization of business practices by creating a single set of business funtions for the entire organization to access. If in case got to change a business rule also can be done easily by changing the business object. Business logic is basically implemented using Java beans and then at a higher level by servers like EJB, weblogic, websphere etc. Information relevant to these servers are linked in the Java service page (previous page).
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