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On the Performance of Web Services - download pdf or read online

By Zahir Tari, Ann Khoi Anh Phan, Malith Jayasinghe, Vidura Gamini Abhaya

ISBN-10: 1461419298

ISBN-13: 9781461419297

Functionality of net providers offers leading edge ideas to enhance the functionality of internet companies, in addition to QoS (Quality of carrier) specifications. This comprises Qos functionality, reliability and defense. the writer offers degrees of internet prone: the “kernel” (ithe cleaning soap engine which supplies messages from one aspect to a different via numerous networks), and the “server aspect” (which techniques heavy load / requests). the first aim of this booklet is execution of functions introduced briskly. Case experiences and examples are supplied all through this ebook.

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Functionality of internet prone presents cutting edge concepts to enhance the functionality of net providers, in addition to QoS (Quality of carrier) necessities. This contains Qos functionality, reliability and safety. the writer offers degrees of internet providers: the “kernel” (ithe cleaning soap engine which supplies messages from one element to a different via quite a few networks), and the “server part” (which approaches heavy load / requests).

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SOAP-over-SMTP In addition to the HTTP binding, a SOAP-over-email binding is also present in the W3C specification (85). However, unlike the HTTP binding, which forms part of the SOAP standard, the SOAP-over-email binding is only presented in the specification as an example to demonstrate the realisation of the SOAP 40 3 Benchmarking SOAP Binding Fig. 1 A TCP packet binding framework. In the SOAP-over-email binding, SOAP messages are piggybacked on SMTP packets. 3 Related Work on SOAP Performance Existing studies on improving SOAP performance in wired and wireless environments are discussed in this section.

Mobile devices are often dependent on wireless communication protocols for connectivity. 11 or Bluetooth are short in range. The users of mobile devices may also experience frequent disconnections due to being out of range of a network access point — services that are offered on mobile devices should be tolerant to such network failures because the services may not be accessible all the time. In addition, mobile devices’ constrained energy supply places a restriction on the design of mobile Web services that services should not consume too much device energy.

UDP packets are smaller than TCP packets. The UDP header is only eight bytes in length, in comparison to the TCP header which is at least 20 bytes in length. For wireless environments where bandwidth availability is low and users are charged by the amount of data they transmit and receive, UDP provides a cheaper alternative to TCP. • UDP supports multicasting. This opens up the opportunity to create push-based and publish/subscribe Web services, where SOAP messages or notifications are sent to multiple clients periodically or triggered by an event.

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On the Performance of Web Services by Zahir Tari, Ann Khoi Anh Phan, Malith Jayasinghe, Vidura Gamini Abhaya

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