A N Ovel S Ervice O Riented a Rchitecture ( Soa ) to S Ecure S Ervices in E - C Ity

Many cities in the world have moved toward being e-city using IT and there are some who have implemented it and or seeking out to make it operational. However, experience shows that implementation of e-city faces Challenges which the effectiveness of e-city, improvement of provided services and security are the most important part of these challenges. Today, for realization of a perfect e-city, to overcome faced challenges Such as security issues is an urgent need. Considering that e-city consists of multiple information systems, it’s the most important challenge to create integration between these systems and provide its security which service oriented architecture as a computational model and an approach for data integration could largely overcome these problems. In this paper through studying challenges of information systems in e-city layers and with concentrating on advantages of service oriented architecture, a new architecture to improve the security of e-city’s systems and their provided services and also overcoming the challenges of information systems has been proposed.