Detecting Intention-Violation Feature Interaction in NGN Based on Feature Re-presentation

Abstract—In the evolving telecom networks such as next generation network (NGN), service design is open to the thirdparty. The feature logic will be kept private for business purpose. This makes it hard to detect feature interaction (FI) with the static method as usually, because the feature can not be specified with formal languages. To solve this problem, dynamic method can be employed. When implementing this kind of method, however, FIs caused by violating user’s intention are difficult to deal with, for violation of user intention is hard to express. To overcome this, a duplicate of Application Server called FRS (Feature-Re-presentation Server) is proposed to add into the network, where each feature can run individually and the running result is sent back as desirable result to compare with those obtained in the working environment. Interaction exists if they are inconsistent. FI detecting algorithm is given and two experiments are described in detail to show its practicability. Index Terms—feature Interaction, NGN, dynamic detection, intention violatio