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Software development process is the most important part of software project management, and the detailed design model is an important mean of implementing the software process in any software development process. Different to other software process, the optical seam tracking system based on CCD for root pass pipe welding of gas metal arc welding has its special characteristics. We need a system which perhaps can not attain accurate measurement, but must concludes correct calculation, then drive the torch to the center of the groove. Our research proposes some quality improvements in existing software engineering process models through the application of trusted transitive chain. Divide the system into several modules and create the trusted transitive chain, design a kind of integrity measurement of each module, only if the pre-condition is trustworthy, the module has a chance to do next action. The experimental results show the better tracking results.
Date of Conference: 4-6 Dec. 2010