Once the GIS web services are construed, they can be used
by a number of ITS application systems which include the
intelligent transportation control systems, the video
supervisory systems, the electronic police systems, the 110/122
alarm systems, vehicle movement management systems, the
street intersection control systems and the mass transportation
systems. A customized ITS application system, which need the
geo-reference data and information, can be viewed directly in a
graphical web browser or other pictorial software. The ITS
application system can integrated the GIS client and web map
service by Hypertext Transfer Protocol. The GIS-T web
service architecture includes the web service engine, ITS
application clients and web service interface and data storages.
GIS-T Web Services have many advantages. GIS-T Web
Services are discoverable, self-describing software components.
UDDI is an open standard with broad industry support standard.
When an implemented GIS Web Service exposed in any Web
Services portal, it can be discovered in any Web Services
portal. Once a GIS Web Service is discovered, the developer
can begin using it immediately. All they need is the full URL
path to the services WSDL. Each method, parameter, property,
and return value of the service is described in a standard way,
allowing modem development tools to access to the exposed
functionality.
GIS-T Web Services are easily implemented compare to the
traditional GIS system. GIS-T Web Services conceal
complexity. Web Services embed its complex data processing
within itself in server side. Client side application developer
make use of Web Services through standard interface which
described in Web Services WSDL, therefore the application
developer don't need dealing with Web Services internal
process.
The following basic GIS-T Web Service should be
considered in the design for the service oriented distributed
GIS-T platform. They provide a variety of interfaces for
integration and interoperability with customized ITS
application system.
GIS-T Web services. Web GIS-T platform should support
the standard enterprise application server technologies to build
web services with embedded d spatial services, software
components and APIs to easily embed spatial capabilities in
customized ITS application system built using standard
technologies and architectures.
Web Mapping Services (WMS). WMS can display map
layers for all the customized ITS application system and allow
all the customized ITS application system to display map
layers from Web GIS platform
OpenGIS Consortium Interoperability Services and
Standards. The Web GIS platform is implemented with the
OpenGIS interoperability standards:
Geography Markup Language (GML). GML is a common
XML-based file format for exchanging spatial information and
attributes. The Web GIS platform should support the GML
standards.
Once the GIS web services are construed, they can be usedby a number of ITS application systems which include theintelligent transportation control systems, the videosupervisory systems, the electronic police systems, the 110/122alarm systems, vehicle movement management systems, thestreet intersection control systems and the mass transportationsystems. A customized ITS application system, which need thegeo-reference data and information, can be viewed directly in agraphical web browser or other pictorial software. The ITSapplication system can integrated the GIS client and web mapservice by Hypertext Transfer Protocol. The GIS-T webservice architecture includes the web service engine, ITSapplication clients and web service interface and data storages.GIS-T Web Services have many advantages. GIS-T WebServices are discoverable, self-describing software components.UDDI is an open standard with broad industry support standard.When an implemented GIS Web Service exposed in any WebServices portal, it can be discovered in any Web Servicesportal. Once a GIS Web Service is discovered, the developercan begin using it immediately. All they need is the full URLpath to the services WSDL. Each method, parameter, property,and return value of the service is described in a standard way,allowing modem development tools to access to the exposedfunctionality.GIS-T Web Services are easily implemented compare to thetraditional GIS system. GIS-T Web Services conceal
complexity. Web Services embed its complex data processing
within itself in server side. Client side application developer
make use of Web Services through standard interface which
described in Web Services WSDL, therefore the application
developer don't need dealing with Web Services internal
process.
The following basic GIS-T Web Service should be
considered in the design for the service oriented distributed
GIS-T platform. They provide a variety of interfaces for
integration and interoperability with customized ITS
application system.
GIS-T Web services. Web GIS-T platform should support
the standard enterprise application server technologies to build
web services with embedded d spatial services, software
components and APIs to easily embed spatial capabilities in
customized ITS application system built using standard
technologies and architectures.
Web Mapping Services (WMS). WMS can display map
layers for all the customized ITS application system and allow
all the customized ITS application system to display map
layers from Web GIS platform
OpenGIS Consortium Interoperability Services and
Standards. The Web GIS platform is implemented with the
OpenGIS interoperability standards:
Geography Markup Language (GML). GML is a common
XML-based file format for exchanging spatial information and
attributes. The Web GIS platform should support the GML
standards.
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