Title	Applying Petri Nets to Model Customized Learning and Cooperative Learning with Competency
Author	SeungSoon Park, YoungIn Kim
Citation	Vol. 8  No. 2  pp. 127-132
Keywords	Cooperative Learning, Competency, e-learning, Petri Net, Customized Learning

Title	An Innovative Technique of Marble Texture Description Based on Grain Components
Author	A. Suresh, U.S.N. Raju, A. Nagaraja Rao, V. Vijaya Kumar
Citation	Vol. 8  No. 2  pp. 122-126
Keywords	Texture, Grain component, feature, morphology

Title	Enhanced Cost Optimized VPN Provisioning Algorithm
Author	R.Ravi, S.RadhaKrishnan
Citation	Vol. 8  No. 2  pp. 116-121
Keywords	Restoration Schemes, QoS Models, QoS Constraints, Restricted Shortest path, Primary path and Restoration Topology

Title	Dropped Packet Problems in Stepping Stone Detection Method
Author	Mohd Nizam Omar, Lelyzar Siregar, Rahmat Budiarto
Citation	Vol. 8  No. 2  pp. 109-115
Keywords	Intrusion tracing, stepping stone detection, dropped packet