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Although web services have been espoused due to their many benefits, it is known that overhead delay, particularly the communication delay, associated with invocation and execution of web services is high. Consequently, much research has been expended on minimizing those delays. In many situations an application invokes a web service repeatedly such that some or most of the data returned by the web...
The mobility/cloud ecosystem aims to deliver infrastructure, platforms, and software as a service, enabling more people to benefit from ubiquitous information access. The culmination of 10 years' research converges on-demand applications with the infrastructure-servers, storage, networks, and client devices-to support cloud computing.
In the paper we discuss how data matrices are being applied in an experimental way in the MenoMaps research project. One of the outcomes of the project is a map-based service prototype with multipublishing channels capable of delivering the same map data for the users via different media. We demonstrate how the data matrices could be displayed on paper maps as a link to location-specific information...
Dreamweaver has powerful database access functions, using windows operating without coding can operate database. Existing literatures only describe sequential steps, but, the network database connection mechanism and the steps corresponding to program code in WEB system are not further expounded. This paper analyzes database connection mechanism of WEB application system based on three-tier architecture,...
This paper presents an approach for enabling the commercial use of OGC Web Processing Services (WPS) in Spatial Data Infrastructures. In particular, it demonstrates how WPS can be enhanced for ad-hoc license agreements without any prior offline negotiation between geoprocess provider and geoprocess user. A security-enabled architecture including the components and their interactions is described....
The web is the most powerful paradigm on the Internet today. The widespread use of web services, almost universally in enterprise and Internet services, makes them very attractive for use in sensor networks as well. With the rapid expansion of IPv6 in sensor networks thanks to the 6LoWPAN standard, it is possible to implement web services suitable for very embedded nodes and networks. The SENSEI project...
Most organizations exchange, collect, store and process data over the Internet. Many hospital networks deploy Web services to send and receive patient information. SOAP (Simple Object Access Protocol) is the most usable communication protocol for Web services. XML is the standard encoding language of SOAP messages. However, the major drawback of XML messages is the high network traffic caused by large...
A grid environment is a collection of a large number of geographically distributed resources managed by various organizations. And it is considered as a powerful computing infrastructure to solve large and complex problems. To support the software development, until now, many grid programming languages have been investigated. Most of them use proprietary protocols or TCP-based protocols to communicate...
The Web service description language defines a service as a procedure whose inputs and outputs are arbitrarily structured XML data values, sometimes called documents. In this paper we argue that document-oriented interfaces can be viewed as batches of calls to finer-grained object-oriented interfaces. Turning this correspondence around, we show that flexible documents can be specified by converting...
Web service security is essential for SOA-based applications. Based on the analysis of the two existing authentications of REST-style Web services, Basic HTTP Authentication and HTTP Digest Authentication, we propose an extended UsernameToken-based approach for REST-style Web service. In this approach, the WS-Security UsernameToken and secondary password are added into the HTTP header. By this way,...
During the last decade several network management solutions have been proposed or extended to cope with the growing complexity of networks, systems and services. Architectures, protocols, and information models have been proposed as a way to better respond to the new and different demands of global networks. However this offer also leads to a growing complexity of management solutions and to an increase...
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