A Framework Supporting Integrated Transaction and Session Management for Cooperative Applications a Framework Supporting Integrated Transaction and Session Management for Cooperative Applications

contee udo do presente relatt orio e de unica responsabilidade do(s) autor(es). The contents of this report are the sole responsibility of the author(s). Abstract This report presents a framework of integrated transaction and session management to meet the requirements of applications based on group work. Transaction management is provided in order to guarantee data consistency and recovery from failures with the additional beneet of structuring complex applications as nested transactions. Visibility between users is achieved by allowing unnnished work to be transferred between users or by establishing a synchronous session. Within a session users can update shared objects in turns and be notiied of others' actions synchronously.