tailieunhanh - Management and Services Part 10

Tham khảo tài liệu 'management and services part 10', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 56 Management and Services communications such as CGI Common Gateway Interface Server API Application Programming Interface Plug-in GIS Java Applet ActiveX and COM Component Object Model . The distributed geographic information sharing technology includes three models which are Microsoft s DCOM Distributed Component Object Model ActiveX Sun s Java RMI and OMG s object management group CORBA common object request broker architecture . The ActiveX DCOM model only runs on the Microsoft Windows platform and Java RMI technology localizes on the Java language. In despite of the independency of languages and Operate Systems CORBA adapts to construct the distributed systems of compact coupling. In a sense Web Services extend the distributed Objects Component technology. By contrast with the former Interoperable methods Web Services accomplish the accesses to objects in the loose coupling circumstances. Web components can implement and publish in any computer which provides corresponding functions and services and also integrate the heterogeneous applications. Therefore the technology of Web Services adapts to share the Geo-information of heterogeneous GISs. Fig. 1. Three roles in Web Service Web Services which are the product of the Internet publish the standard interfaces of functions or services. The protocols such as Simple Object Access Protocol SOAP Web Services Description Language WSDL and universal Description Discovery and Identification UDDI provide the architecture for simple yet effective GIS interoperability independent of concrete platforms and softwares. UDDI s aim is to develop a standard for an online registry and to enable the publishing and dynamic discovery of Web services offered by businesses. Web Service Architecture includes three roles as illustrated in Fig. 1. Service Provider Service Registry or Service Broker and Service Requester. Service Provider is the provider of the web service. The provider implements the service and makes it available on

TỪ KHÓA LIÊN QUAN
crossorigin="anonymous">
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.