A process reference model of requirements engineering is established based on CMMI.
基于能力成熟度模型集成框架,建立了需求工程过程参考模型.
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In the stratified reference model , between the three levels is independent.
在分层的参考模型中, 层与层之间是独立的.
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WAN technologies function at the lower three layers of the OSI reference model.
广域网路技术功能在OSI参考模型最低的三层.
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