1746-IC16/1746-IC16 AB样品压力： zui大75磅
湿表面材料： 蓝宝石，PFA，KEL-F的Kalrez
通讯协议： RS-485的4-20mA，MODBUS，以太网TCP
功率： 24VDC
1746-IC16/1746-IC16 AB
1746-IC16/1746-IC16 AB
测量与分析更加详细地规定了对于能够证明过程的文档的采集和存储方法，而且需要对采集数据汇总后进行统计分析，将分析结果，如偏差、趋势、错误数目等展示给项目组成员和高层，由他们进行项目开发的决策。
项目监控是手段，测量与分析为辅助，需求管理则是zui终目的。结合图1，需求在整个软件研制周期内不可能是一成不变的，是逐步细化的。用户需求是*步，随后软件研制任务书将用户需求工程化，需求规格说明对任务书的需求细化，设计说明对需求规格说明的需求细化，软件源代码将设计说明对应到代码。单元测试、集成测试、系统测试是对细化后的需求进行回归。根据GJB438B-2009中的《软件需求规格说明》模板，需求包括10类技术需求和4类非技术需求。非技术类需求一般可以得到客观保证，因此不会出现大的变动，可以暂不纳入需求跟踪矩阵。技术需求由于项目研制情况会出现变化，需要纳入需求跟踪矩阵进行管理，确保软件工作产品巾需求能够进行双向追溯。一旦需求变更状况时，及时记录并且上报整个项目组，获得项目组的*认可。
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