INTERNATIONAL JOURNAL OF RESEARCH IN COMPUTER APPLICATIONS AND ROBOTICS www.ijrcar.com Vol.3 Issue.3, Pg.: 195-204 March 2015 V.Devi & R.Kanagaselvi Page 195 INTERNATIONAL JOURNAL OF RESEARCH IN COMPUTER APPLICATIONS AND ROBOTICS ISSN 2320-7345 ENDORSE THE TRUSTFUL QoS TO CRAFT MASHUP/BUSINESS ORIENTED WEB SERVICES AND RECTIFY MALICIOUS ATTACKS 1 V.Devi, 2 R.Kanagaselvi 1 Student, Department of computer science and engineering, Sree Sowdambika College of engineering, TamilNadu, India 2 Assistant Professor, Department of computer science and engineering, Sree Sowdambika College of engineering, TamilNadu, India devi17lakshmi@gmail.com, rkanagaselvi@gmail.com Abstract: - Web services are standardized way of integrating web based applications. In the recent days, the web domain is augmented with new types of services. Due to the growing number of web services available in online that makes difficulty for user to select an appropriate web services among a large number of services for their business interest. In this paper, we propose a web service recommender system that fit user’s interest based on the quality-of-service properties such as response time, throughput, availability and develop a fault based testing method to improve the robustness of the web service when there is a need for the users to rectify the bugs without finding no risk in web services while accessing the service. A malicious attack is also important to get trustworthy QoS properties from the users and it is used to filter the malicious information about the web services. Index Terms—Web Service, Qos, Fault based testing, Robustness, Malicious Attack, Throughput, Response Time, Availability. 1. INTRODUCTION Web services is a method of communication between devices over a network; it integrates the web based applications because of each web application provide a specific service so all of the services are integrated within