Jaleh Shoshtarian Malak - Department of computer Engineering, Islamic Azad University South Tehran Branch,Tehran,Iran
Mehran Mohsenzadeh - Department of computer Engineering, Islamic Azad University, Sciences&Research Branch,Tehran,Iran
Mir Ali Seyyedi - Department of computer Engineering, Islamic Azad University South Tehran Branch,Tehran,Iran

Due to the changing and dynamic environment of web services, Quality of Service (QoS) becomes a key factor to differentiate service providers. Since current web service standards and technologies suffer from the lack of QoS Management, having architectures capable of supporting QoS verification, selection, negotiation and monitoring is inevitable. Software agents have been recognized as a promising technology for managing web services. Using FIPA compliant Multi Agents we were able to propose a Multi Agents based web service QoS Management Architecture. We also introduced a QoS based web service clustering method which helps us to select the best service that suits user quality preferences.