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Web services which allow the interoperability and communication of heterogeneous systems in the Web through Internet protocols, are also subject to attacks a well as destructive as sophisticated. Contrariwise, very few solutions exist to ensure the availability of Web services in the presence of these attacks. In order to tackle these issues, we propose a comprehensive and complete attack-tolerance...
The use of SOAP based communication protocol in complex Service-Oriented Architecture (SOA) environments can cause a significant strain on network resources thereby degrading application level performance. In this paper, we present software and hardware approaches for transparent line-rate encoding and decoding of SOAP traffic for alleviating network bandwidth bottlenecks. The proposed approaches...
This article tackles the problem of supplying the low level commanders with information from information sources located on higher command levels, distributed using web services, the most commonly used technology in modern command and control systems. There has been proposed the Adaptation Framework For Web Services Provision (AFRO) that defines a mechanism for effective web services invocation in...
NATO has identified Web services as a key enabler for its network enabled capability. Web services facilitate interoperability, easy integration and use of commercial off-the-shelf components, and while request/response-based schemes have hitherto been predominant, publish/subscribe-based services are gaining ground. SOAP-based Web services, however, introduce considerable communication overhead,...
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...
SOAP has been widely adopted as a simple, robust and extensible XML-based protocol for the exchange of messages among web services. Unfortunately, SOAP communications have two major performance-related drawbacks: i) verbosity, related to XML, that leads to increased network traffic, and ii) high computational burden of XML parsing and processing, that leads to high latency. In this paper, we address...
The W3C recommendation MTOM is the defac to standard for transferring binary data in SOAP protocol elements as attachments. The distinguished feature provided by MTOM is-compared to other SOAP attachment specifications-the efficient transfer of binary data without breaking the XML info set. This property allows e.g. the application of XML Security mechanisms to the SOAP message including the attachment...
The diffusion of RFID technology continues using the Electronic Product Code (EPC) as unique identifier for physical objects. The EPC Network enables companies to share information about read events by defining EPC Information Services (EPCIS). The communication protocols in the EPC Network are defined to be XML and SOAP. We claim that a binary encoded communication protocol is more appropriate given...
SAP Netweaver Application Server (AS) provides two communication protocols to connect SAP ABAP (Advanced Business Application Programming) systems with external systems: Simple Object Access Protocol (SOAP) and Remote Function Call (RFC). RFC is the standard SAP interface for communication between SAP systems. SOAP is widely used in web service solutions for its nature cross-platform characteristic...
SOAP Web services create high network traffic because of its generated large XML messages resulting in poor network performance. Therefore, enhancing the performance of Web services by compressing SOAP messages is considered to be an important issue. Compression ratios achieved by most of the existing techniques and tools are not high enough, and even a tiny improvement could save tremendous amount...
One of the critical challenges in embedded sensor actor networks is the communication between the diversity of widespread nodes. XML-based message formats are already widely adopted in other IT domains such as the Web and would be perfectly suited for data exchange in heterogeneous environments. Despite all its strengths, the common markup language cannot be adopted on small embedded devices with...
Most solutions for Wireless Sensor Networks (WSN) come equipped with their own architectural concepts which raise the problem of possible incompatibility of computer networks and the WSN. Often gateway concepts are used to overcome this problem. But this is not the best solution on the long term. Other research fields and industrial domains are heading for universal cross domain architecture concepts...
Current efforts in real world deployment of wireless sensor networks end up in the development of the 6LoWPAN protocols. While big industrial consortia develop new technologies, architectures, and concepts, 6LoWPAN is heading towards improvements and adaptations of existing and matured network protocols like IP, TCP, and UDP. Because 6LoWPAN uses the low power WPAN standard IEEE 802.15.4 in lower...
Many organizations such as hospitals have adopted Cloud Web services in applying their network services to avoid investing heavily computing infrastructure. SOAP (Simple Object Access Protocol) is the basic communication protocol of Cloud Web services that is XML based protocol. Generally,Web services often suffer congestions and bottlenecks as a result of the high network traffic that is caused by...
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...
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...
Network configuration (NETCONF) is a widely used protocol to deploy configuration of network devices. NETCONF uses different transport layer protocols like secure shell (SSH), simple object access protocol (SOAP), or blocks extensible exchange protocol (BEEP) (IETF RFCs 4742 through 4744), and assumes availability of a high bandwidth network for successful configuration deployment. In a dynamic MANET...
Distributed SOA computing environments usually use SOAP intermediaries that sit between senders and receivers to mediate SOAP messages. The intermediaries may add support services to the SOAP message exchange, such as routing, logging, and security. The typical processing by a SOAP intermediary is parsing the incoming SOAP messages, checking the data in each message, and then serializing the messages...
The increasing ubiquity of mobile embedded systems has been matched by the evolution of a variety of wireless network standards and technologies. The major constraints of wireless embedded systems are limitations of communication bandwidth, processing capabilities, and battery power. Remote wireless embedded systems often act as sensors, which provide data to a certain community. The exchange of data...
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