JAT is a flexible Java base-framework which can be easily extended to improve projects start-up time. JAT allows to build Web applications (J2EE) or standalone application (server, batch, etc.). JAT supplies the main basic functionalities of any Java application, such as: High Business Object abstraction; Integration facilities (provided for DBMS, LDAP and open to any software product); Authentication and user privileges management; MVC pattern implementation (with privileges management and page flow control); HTML layout structure management (header, footer, menu, etc.); HTML dynamic contents and facilities (form, report, paging); Logging feautures; Help on-line utility; High configuration of all described functionalities; Administration and configuration GUI.