 This is different for JADE applications, as they are coded as one application from end-to-end.When creating a JADE application, the programmer can think as if they were creating a program that will be running on the database server – as if all the data storage, processing and presentation were happening on one computer.When the program runs on three tiers, JADE automatically knows to run all the code by default on the application server, and to send database requests up to the database server and user interface information down to the presentation client.