A User Trustworthiness Based Lightweight Access Control

Web Services have been gathering an increasing amount of attention lately. However, service providers may not trust users to use their services correctly, whether this misuse happens through malice, stupidity, or oversight is unimportant. It may affect the state of the services with which they interact and can thus cause problems. For example, a single user communicates with a hotel-booking service to reserve all the rooms, but actually he doesn´t want to reside. Moreover, the identities of all users are not known in advance and the providers must offer the users the best service. To address this problem, we propose a mechanism designed to improve service availability. Through the comprehensive experiments, we find that our proposed mechanism can indeed achieve better availability as expected.