??????????????????????

????????????????????????У?????????????????????????????????????????????????????????????????????????????У?????????????????????????????????????????????????????μ???????????μ?????????????????????????????????????????????Σ?????????????ε??????????????н?????????????????????????????????????????????????????????

?????????????????????????

????????????????Agile Software Development????????????????????????????????????????????waterfall model??????????????????????????????????Lightweight methods??????????????17 λ?÷???????????????????????Agile Alliance?????????????????????????????????????????

???????????????????????????????????????

????1. ???????????????????Individuals and interactions over processes and tools??

????2. ?????????????????Working software over comprehensive documentation??

????3. ???Э??????????У?Customer collaboration over contract negotiation??

????4. ????????????浸???Responding to change over following a plan??

????????????????????????????????????????????μ?? 1????

                                     ? 1. ??????????????

?????????????м?????????????????????????????????????????????????Extreme Programming??1996????Scrum??1986??????????????????Feature Driven Development??????????????????Test Driven Development???????Щ??????????????????????????ζ??г??????????á?

???????磬Scrum ?????????????????????е?????????Scrum master??????????????????????????? Sprint ?????????????? Sprint ????????????????м???????????????????μ? Sprint??