Mobile Transaction Management - (A Survey of Transaction Processing on Mobile Hosts)

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Dr. Jamal Alsabbagh, alsabbaj@gvsu.edu

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Traditional database transactions are usually short-lived and are required to adhere to the ACID (Atomicity, Consistency, Isolation, and Durability) properties. Therefore, a disconnection from the database server is interpreted as a failure that requires an abort and roll back. In contrast, the norm for clients (laptops, PDAs, cell phones, etc.) is to intermittently disconnect from the database server intentionally or unintentionally. Therefore, and in order to accommodate the needs of mobile transactions, the ACID properties have to be relaxed. This survey reviews some of the challenges in mobile transaction management. The scope applies to Fixed Server with Mobile Hosts. The focus is on handling disconnection and mobility and their implications on the ACID properties. Various commercial products are briefly reviewed. This survey does not include other related issues such as security, mobile host to mobile client, or wireless challenges.

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