Conclusion

Quality of services is an important requirement of business-to-business transactions and thus a necessary element in Web services. The various QoS properties such as availability, accessibility, integrity, performance, reliability, regulatory, and security, need to be addressed in the implementation of Web service applications. The properties become even more complex when you add the need for transactional features to Web services. Some of the limitations of protocols such as HTTP and SOAP may hinder QoS implementation, but there are a number of ways to provide proactive QoS in Web services.