BS ISO 24097-1:2017

Describes a Service Oriented Architecture (SOA) for the realization of interoperable web services for Intelligent Transport Systems (ITS).

This document establishes a Service Oriented Architecture (SOA) for the realization of interoperable web services for Intelligent Transport Systems (ITS). Web service behaviour is described at the metadata level, i.e. a higher level of abstraction, to enable auto-generation of both a ‘service requester’ program as well as a ‘service provider’ program. Figure1 presents the principal entities involved in a web service scenario. They are service provider, service requester, and \'registry\'. The registry includes business information and technical information such as interface and policy. Figure1 also depicts the actions of the service provider and the service requester. A service provider interacts with the registry to enable it to \'publish\' the provided service. The service is characterized in the form of a web service interface describer in the form of a standardized web service description language (WSDL) and policy (WS-Policy). A service requester interacts with the registry to \'discover\' a provider for the service he is seeking. That interaction takes place through \'Universal Description Discovery, and Integration\' (UDDI) dialogue and endpoint reference (EPR). Once the service requester identifies a service provider, he \'binds\' to the service provider via an SOA protocol. This document is applicable to inter-ITS sector web services as well as ITS web services for non-ITS users. Figure1 Web service entities and their relationships