QoSS Policies within SOA

In this work, we present a metadata for Quality of Security Service (QoSS) for Service-Oriented Architecture, which supports the description of authentication, authorization and privacy features. The metadata is encapsulated by a QoSS service in order to assist the service consumer and provider to achieve a QoSS contract meeting both of their security requirements. This contract performs as an enforced policy for managing the interactions between the parties.