Contents 13.1 Introduction .............................................................................................296 13.2 Mobile Web Services ................................................................................298 13.3 Mobile Web Service Provisioning ............................................................ 300 13.3.1 Performance Evaluation of the Mobile Host ................................303 13.4 Mobile Terminal Access .......................................................................... 304 13.5 Applications of the Mobile Host ............................................................. 306 13.6 MobileHost CoLearn System ...................................................................309 13.6.1 Features of the MobileHost CoLearn System ..............................309 13.6.2 Sample Scenarios of the MobileHost CoLearn System ................310 13.6.3 Usability Evaluation of the MobileHost CoLearn System ...........312 13.7 Mobile Enterprise .....................................................................................313 13.8 QoS Aspects of Mobile Web Service Provisioning .................................... 315 13.8.1 Security Analysis of the Mobile Host .......................................... 315 13.8.2 Scalability Aspects of the Mobile Host ........................................316 13.9 Mobile Web Service Discovery ................................................................. 318 13.9.1 Mobile Web Service Provisioning in P2P Networks .................... 319 13.9.2 Mobile Web Service Discovery Approach ....................................321 13.9.3 Categorization Support of Mobile Web Service Discovery ..........323