Mobile nested transactions for nomadic teams

This paper introduces the Mobile Nested Transactions (MNT) model for transaction processing coordination in groups of mobile devices. The model extends traditional approaches-centralized and distributed-for distributed transaction processing over mobile devices. Under the Nested Transactions approach, sub-transactions-logical work units-processing control is highly flexible and fault-tolerant. Hence, transaction processing with mobile groups lacking of access to a wired network or the Internet becomes possible. A MNT additional advantage is that sub-transactions could be distributed among mobile devices. This is, whenever some sub-transactions are successfully committed, they cannot be affected by failed or pending sub-transactions. (C) 2003 Elsevier Ltd. All rights reserved.