Based on BPEL,Web services can be composed into complex business process. However, BEPL does neither support to modify Web services during the execution of business process nor provide the mechanism of optimal service. In order to solve these problems, this paper gives a dynamic Web services optimal composition framework grounded on the BPEL and QoS. By using the dynamic binding function of QoS components and the dynamic UDDI discovery of Web service, the business process run-time dynamic selection of Web service will be realized. Web service optimal composition is implemented by Froyd’s shortest path algorithm. So the efficiency in execution of business process will be improved as well.

Based on the specification model of PIX (Patient Identifier Cross-reference) in the architecture of the IHE-ITI (Integrating the Healthcare Enterprise-IT Infrastructure), combining with SOA (Service-Oriented Architecture) architecture, the paper points out the method of patient information interoperability between heterogeneous systems. With standardized middleware as an information carrier of architecture platform of medical information, using SOA-based Web Service technology, the interoperability of patient information between medical institutions can be achieved.

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There are the similarities and the differences between wavelet transformation and traditional superposing and averaging method are discussed in de-noising ABR signal. Actually, it is easy to see that the advantage of wavelet transform, but it’s unbelievable to other people. In this paper, by spectral analysis, a quantity measurement estimate is given. So we can conclude that wavelet transform has better result than traditional superposing and averaging for noise removal.

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