Research And Implementation On Web Service Composition Base On BPEL

Currently Web Services technology has built from the foundation stage to the stage of rapid development of large-scale commercial applications. WSC (Web Services Composition) is to promote the continued development of technologies for Web Services technology and research. Web Services Composition based on the BPEL technology is an important way to achieve WSC. Web Services Compostion research in the existing mainly in the described and collaboration mechanisms, lack of storage means in BPEL itself. Existing BPEL document storage standards are adopted, namely, direct memory XML file. With the growing WSC performance requirements, file storage methods can not meet the needs of application development. Mainly in the storage structure is unreasonable, excessive file maintainability, and unable to provide structured query three functions.In tackling the issue raised by this Case-Base as a storage strategy work flow solution, mainly the Case-base design, modular design and core algorithms, research and give a Web Services Composition BPEL models WS-CCM. On this basis, against WS-CCM models in the original BPEL improvement from memory strategies, improve maintainability and structured query interfaces for the testing and analysis of three. Comfirm the amelioration in existing BPEL storage strategy, maintainability, providing structured query three improvements. A Ideally threshold point be chalked up between WS-CCM models and BPEL file storage strategy. WS-CCM models in BPEL document storage storage strategy over the threshold model. Finally, a demonstration system HHUChart articles, a certification WS-CCM model feasibility, and made further work prospects.