Security is a very important aspect for web service technology. Many people find the idea of creating security metrics to be a daunting task. Secure web service discovery aims at finding the best component services that satisfy the end-to-end security requirements between service consumer and service provider. The term "metrics or criteria" refers to specific objectives that have defined security measurement. It helps to select the most suitable security configuration according to a consumer business process and different levels of trust. In this paper, we presents a new pattern methodology for web service to address the security issues and propose a scalable security computation based on a heuristic approach which decomposes the complex problem into smaller sub problems that can be solved more efficient than the original problem. We define quality of service (QoS) in security as a set of security requirements a service provider guarantees. We identified several security parameters classified under different criteria to evaluate web services vulnerabilities. Metrics evaluation can be done through heuristic approach where in the security parameters are assigned prioritized weights which meliorates rank of web services.

Security Patterns Secure Service Discovery Trust Security Ranking