Defining an Adaptable Mobile Transaction Service

Mobile environments are characterized by frequent variations in connection and bandwidth rates as well as by restrained resources on portable devices. This variability complicates data management and in particular, transaction execution. We consider that to deal with environment variability it is necessary to be adaptable. This paper proposes both a Mobile Transaction Service (MTS) and an Adaptable Mobile Transaction model (AMT) which offer environment awareness and transaction execution adaptability. The MTS is a middleware that besides coordinating the execution of mobile transactions, supports mobile environment awareness. The AMT allows the description of different semantical equivalent ways of executing mobile transactions. Thus, depending on the environment mobile transactions will be executed.