Search Word(s) in Title, Keywords, Authors, and Abstract: Mobile Technology

Dynamic Load Balancing and Network Adaptive Virtual Storage Service for Mobile Appliances
Ivy Ong and Hyotaek Lim
Page: 53~62, Vol. 7, No.1, 2011
10.3745/JIPS.2011.7.1.053
Keywords: iATA Protocol, Load Balancing, Network Monitoring, Storage Network Solution, Write Replication
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With the steady growth of mobile technology and applications, demand for more storage in mobile devices has also increased. A lightweight block-level protocol, Internet Advanced Technology Attachment (iATA), has been developed to deliver a costeffective storage network solution for mobile devices to obtain more storage. This paper seeks to contribute to designing and implementing Load Balancing (LB), Network Monitoring (NM) and Write Replication (WR) modules to improve the protocol¡¯s scalability and data availability. LB and NM modules are invoked to collect system resources states and current network status at each associate node (server machine). A dynamic weight factor is calculated based on the collected information and sent to a referral server. The referral server is responsible to analyze and allocate the most ideal node with the least weight to serve the client. With this approach, the client can avoid connecting to a heavily loaded node that may cause delays in subsequent in-band I/O operations. Write replication is applied to the remaining nodes through a WR module by utilizing the Unison file synchronization program. A client initially connected to node IP A for write operations will have no hindrances in executing the relevant read operations at node IP B in new connections. In the worst case scenario of a node crashing, data remain recoverable from other functioning nodes. We have conducted several benchmark tests and our results are evaluated and verified in a later section.


Use of Mobile Devices in the Performance of Group Decision-Making under Contextual Pressure
Oh Byung Kwon, Tae Kyung Kim and Choong Rhyun Kim
Page: 64~72, Vol. 3, No.2, 2007
None
Keywords: Group Decision Making, Mobile Technology, Mobile Devices, Group Decision Support
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Mobile technology appears promising as a method to promote group performance in circumstances dependent on time, but not member proximity. However, the success of mobile technology in group decision-making situations has not yet been proven. This paper aims to see how mobile technology affects the performance of group decision-making tasks that should be resolved urgently and/or sources of idea are disconnected with on-line network. Laboratory experiment was used to investigate the effects of mobile factors on group decision-making. The results from the experiment supported the proposition that pressures of time and location play a significant role in the assessment of group decision performance measures. We found that the adoption of mobile technology to group decision-making procedures might be competitive when group decision-making tasks are urgent and sources of idea are disconnected with on-line network, even though mobile technology is not a panacea on which to depend when designing group decision-making.