Sunday, August 18, 2013

Challenges and Issues in mobile Transitions

Mobile devices, laptops, PDA and Tablets are been used widely in this new era n so the increased computing power and easily availability and convenience has made mobile computing and transactions crucial. the mobile computing involves mobile banking ,weather forecasting , on line reservations ,traffic status ,stock information etc. for mobile computing transactions management is very important and challenging part because of the specific characteristic of mobile environment variable bandwidth, disconnections,mobility, limited resources, battery consumptions the traditional transaction management technique are no longer appropriate. 

Transactions acts as key point for structuring mobile databases. the transaction correctness is guaranteed by the ACID properties (atomicity,consistency,isolation,durability ) the atomicity is ensured by commit protocol, consistency is ensured by database integrity constraints, Isolation is ensured by concurrency control mechanism, durability is ensured by logging.