The role of standards for interoperating information systems
Information technology standards and standardization
Establishing standards for business components
Information technology standards and standardization
Communications of the ACM - E-services: a cornucopia of digital offerings ushers in the next Net-based evolution
Service -Oriented Computing: Concepts, Characteristics and Directions
WISE '03 Proceedings of the Fourth International Conference on Web Information Systems Engineering
USE: A UML-based specification environment for validating UML and OCL
Science of Computer Programming
Techniques for service level enforcement in web-services based systems
Proceedings of the 10th International Conference on Information Integration and Web-based Applications & Services
Service-level enforcement in web-services-based systems
International Journal of Web and Grid Services
Layered Government and E-Citizenship: Objectives and Technical Challenges in the EU
ICIW '09 Proceedings of the 2009 Fourth International Conference on Internet and Web Applications and Services
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Service-based systems are becoming the dominating technology for providing and combining functionality in distributed systems. They also can be a viable solution to address E-Government aspects. A typical citizen engages with governmental agencies at several hierarchical levels - local, regional and national. Federal and international organizations come atop. We denote this as the concept of layered government. The citizen expects to find similar procedures at every level. Such commonly designed single points of contact are emerging as real challenges and are often mandated by legal regulations. We use the examples of the German E-Government Initiative "Germany Online" and the EU Services Directive to propose areas where service orientation can be beneficial.