Service-Oriented Computing (SOC) promotes the assembly of application components into a network of loosely coupled services, enabling flexible, dynamic business processes and agile applications across organizations and platforms. The SOC paradigm supports rapid, low-cost, interoperable, evolvable, and massively distributed applications through autonomous, platform-independent services. Web services are the most promising SOC technology, using standards like SOAP, WSDL, and BPEL4WS for communication and orchestration. The SOC research road map, illustrated in Figure 1, outlines four key research themes: service foundations, service composition, service management and monitoring, and service-oriented engineering. These themes are logically separated into three planes: service foundations, service composition, and service management and monitoring. The road map also defines roles such as service requester, provider, aggregator, and operator, emphasizing the importance of service modeling and engineering. **Service Foundations** involve a middleware infrastructure that connects heterogeneous systems and provides multiple-channel access to services. Key challenges include dynamically reconfigurable runtime architectures, end-to-end security solutions, infrastructure support for data and process integration, and semantically enhanced service discovery. **Service Composition** focuses on aggregating multiple services into composite services. Notable challenges include composability analysis, dynamic and adaptive processes, QoS-aware service compositions, and business-driven automated compositions. **Service Management and Monitoring** involve assessing the health of systems implementing Web services and monitoring service behavior. Key challenges include self-configuring, self-adapting, self-healing, self-optimizing, and self-protecting management services. **Service Design and Development** require an evolutionary software engineering approach, including service-oriented engineering methodologies, flexible gap-analysis techniques, service versioning and adaptivity, and service governance. Overall, SOC is a complex field that integrates many technologies and disciplines. By focusing on these related themes, researchers can align ongoing and future projects, leading to more interoperable SOC solutions.Service-Oriented Computing (SOC) promotes the assembly of application components into a network of loosely coupled services, enabling flexible, dynamic business processes and agile applications across organizations and platforms. The SOC paradigm supports rapid, low-cost, interoperable, evolvable, and massively distributed applications through autonomous, platform-independent services. Web services are the most promising SOC technology, using standards like SOAP, WSDL, and BPEL4WS for communication and orchestration. The SOC research road map, illustrated in Figure 1, outlines four key research themes: service foundations, service composition, service management and monitoring, and service-oriented engineering. These themes are logically separated into three planes: service foundations, service composition, and service management and monitoring. The road map also defines roles such as service requester, provider, aggregator, and operator, emphasizing the importance of service modeling and engineering. **Service Foundations** involve a middleware infrastructure that connects heterogeneous systems and provides multiple-channel access to services. Key challenges include dynamically reconfigurable runtime architectures, end-to-end security solutions, infrastructure support for data and process integration, and semantically enhanced service discovery. **Service Composition** focuses on aggregating multiple services into composite services. Notable challenges include composability analysis, dynamic and adaptive processes, QoS-aware service compositions, and business-driven automated compositions. **Service Management and Monitoring** involve assessing the health of systems implementing Web services and monitoring service behavior. Key challenges include self-configuring, self-adapting, self-healing, self-optimizing, and self-protecting management services. **Service Design and Development** require an evolutionary software engineering approach, including service-oriented engineering methodologies, flexible gap-analysis techniques, service versioning and adaptivity, and service governance. Overall, SOC is a complex field that integrates many technologies and disciplines. By focusing on these related themes, researchers can align ongoing and future projects, leading to more interoperable SOC solutions.