Overview
ISO/IEC 40240:2011, titled Information Technology - W3C Web Services Addressing 1.0 - Core, is an international standard developed by ISO and IEC that defines key mechanisms for addressing Web services and messages in a transport-neutral manner. This standard specifies a set of abstract properties and an XML Infoset representation designed to uniquely reference Web services and enable end-to-end addressing of service endpoints within messages. It supports interoperability in complex messaging environments including networks with intermediary processing nodes such as firewalls, gateways, and endpoint managers.
By providing a standardized approach to Web Services Addressing, ISO/IEC 40240:2011 facilitates reliable communication in distributed systems regardless of the underlying transport protocols, strengthening the foundation for interoperable and scalable Web services.
Key Topics
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Web Services Addressing Concepts
Defines core concepts and abstract properties necessary to reference Web services.
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XML Infoset Representation
Provides an XML-based data model for addressing information, enabling consistent message annotation.
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Transport-Neutral Mechanisms
Supports the transmission of messages across different network transports without losing addressing context.
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Endpoint Identification
Allows precise reference to service endpoints, essential for message routing and processing.
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Intermediary Node Support
Addresses messaging through intermediaries such as firewalls, gateways, and endpoint managers, ensuring message delivery integrity.
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Standards Compliance
Aligns with W3C Web Services Addressing 1.0 Core specifications to ensure broad compatibility.
Applications
ISO/IEC 40240:2011 is applicable in scenarios that require robust, standardized addressing of Web services and messages, including:
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Enterprise Web Services Integration
Ensures that messages reach correct endpoints in complex service-oriented architectures.
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Distributed Systems Communication
Facilitates reliable message routing across heterogeneous networks and protocols.
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Secure Messaging
Supports intermediary nodes such as firewalls and gateways by maintaining addressing context for secure message transmission.
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Cloud and Hybrid Environments
Enables consistent addressing mechanisms in cloud-based or hybrid cloud deployments where transport protocols may vary.
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Middleware and Messaging Systems
Provides the foundation for middleware to route, transform, and process messages based on standardized addressing metadata.
Related Standards
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W3C Web Services Addressing 1.0 Core Specification
The foundational W3C standard upon which ISO/IEC 40240:2011 is based.
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ISO/IEC 19505-1 (UML)
For modeling Web service architectures that may use addressing.
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SOAP (Simple Object Access Protocol) Standards
As Web Services Addressing often complements SOAP-based messaging.
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WS-ReliableMessaging
For ensuring reliable message delivery leveraging addressing mechanisms.
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WS-Security
Enhances secure transmission where message addressing needs to be preserved.
By adopting ISO/IEC 40240:2011, organizations can ensure interoperability and robustness in Web service addressing, enabling seamless message exchange across diverse network environments and infrastructures. This supports scalable, secure, and maintainable service-oriented architectures critical for modern IT ecosystems.