Application Study Of Six-sigma Management In Quality Control Of Software Project

Six Sigma is the methodology of customer-focused, principled qualityeconomy and measurement, which pursues perfect management philosophy.Its core is based on system science and statistical sciences as a means ofmeasurement objectives, by identifying problems, root cause analysis,improvement and optimization and maintaining and other steps, identify thecorrect quality definition, to achieve the best enterprises in terms of opera-tional capabilities. With the success stories of adopting Six Sigma andachieving high ROI (Return On Investment) in manufacturing organizationslike Motorola, Allied Signal and General Electric, many softwareorganizations have tried to adopt Six Sigma and initiated Six Sigma projectsto improve their software development processes from requirements, todesign, implementation, and testing continuously with an ultimate goal ofhigh customer satisfaction with high quality products. However, Six Sigmaadoption in software industry is different from the ones in traditional manu-facturing industry because of the intangibility, complexity, and changeabilityof software products. Software Six Sigma was introduced to focus on theadoption of Six Sigma methodologies to improve software developmentprocesses. Software Six Sigma concerns all aspects of software developmentlife cycle and targets low cost improvements to the organizations withimmediate returns so that highest benefits can be achieved in short period oftime. It also requires the integration with other software process improvementapproaches.Two important tools for Six Sigma management: QFD (QualityFunction Deploy) and FMEA (failure mode and effect analysis) as animportant tool of quality management in the quality management process isapplied to software products. QFD obtains market critical requirements on product quality as the core of quality management. FMEA to be guided in theprocess of product development at all stages of product life possible failuremodes, and possible risks of serious prediction, so as to ensure the quality ofsoftware products. In addition, combined with Six Sigma two of the mostcommon model DMAIC (Define, Measure, Analyze and Control) and thetheory of DFSS (Design for six sigma), to study the common model ofsoftware development process and integration, so as to improve the scienceof software development processes.This paper does a deep systemic research in this area, which mainlyincludes the following contents:(1). Describe the basic theories of most typical Six Sigma models:DMAIC (Define, Measure, Analyze and Control) and DFSS(Design for SixSigma). Analyze the existing software development models, which areadopted frequently by software organizations. After studying SDLC(software development life cycle) software development models, the softwaredevelopment process improvement is conducted in accordance with the SixSigma concept.(2). Study in-depth the theory of QFD principles, combined with theprinter software developing functional requirements, to result the importanceof functional requirements and software subsystems.(3). A detailed study on FMEA of theoretical principles and the instance,failure mode on the printer software in software development, carried out afeasibility study.