Extra-Tree: A model to organize execution traces of Web services

In this paper, a non-linear model called Extra-Tree is proposed to organize execution traces of orchestrate Web services. This proposed model provides us a secured logging system which records the history of all the suspicious or malicious activities from the initiation of the Web service to the completion of the Web service. The main focus of this paper is to organize execution traces of Web services in a distributed computing paradigm in the form of a tree. One of the special characteristics of the model is that the execution traces of Web services can be retrieved from the coarse-grained level to the fine-grained level of the tree as per requirement.