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第145行： − 数据是从各种来源收集的。需求可以由分析人员传达给数据保管人，例如组织内的信息技术人员。这些数据也可以从环境中的传感器，如交通摄像机、卫星、记录设备等接收。它也可以通过访谈，从网上资源下载，或阅读文档而获得。+ − −
→Data collection 数据收集
Data are collected from a variety of sources. The requirements may be communicated by analysts to custodians of the data, such as information technology personnel within an organization. The data may also be collected from sensors in the environment, such as traffic cameras, satellites, recording devices, etc. It may also be obtained through interviews, downloads from online sources, or reading documentation.
Data are collected from a variety of sources. The requirements may be communicated by analysts to custodians of the data, such as information technology personnel within an organization. The data may also be collected from sensors in the environment, such as traffic cameras, satellites, recording devices, etc. It may also be obtained through interviews, downloads from online sources, or reading documentation.
数据是从各种来源收集的。需求可以由分析人员传达给数据保管人，例如组织内的信息技术人员。这些数据可以从环境中的传感器，如交通摄像机、卫星、记录设备等接收，也可以通过访谈、从网上资源下载或阅读文档而获得。
===Data processing 数据处理===
===Data processing 数据处理===