Google Data Analytic Certificate 课1June 19, 2026
The Wonderful World of Data
数据分析流程概述
数据分析过程包括六个阶段:
- 提问(ask)Define the problem and confirm stakeholder expectations
- 准备(prepare)Collect and store data for analysis
- 处理(process)Clean and transform data to ensure integrity
- 分析(analyze)Use data analysis tools to draw conclusions
- 分享(share)Interpret and communicate results to others to make data-driven decisions
- 行动(act)Put your insights to work in order to solve the original problem
数据生命周期与工具
- 数据虽然不是生命体,但有其生命周期,数据分析师通过合适的工具让数据“活起来”。
- 常用的数据分析工具包括电子表格、数据库、查询语言和可视化软件。
规划阶段
- 在分析项目开始前确定所需的数据类型,管理方式和预期结果。
- 多种来源,公开或内部数据。
- 数据库要确保数据完整性,可信度,和隐私。还有数据清洗保证后续分析。
- 利用数据解决问题,支持决策和实现目标。
数据归档 VS. 销毁
- 归档阶段将不常用但仍需保存的数据存储起来,避免干扰分析。
- 销毁阶段安全删除数据,保护公司及客户隐私,如使用数据擦除软件和碎纸处理。
Plan:
Decide what kind of data is needed, how it will be managed, and who will be responsible for it.
Capture:
Collect or bring in data from a variety of different sources.
Manage:
Care for and maintain the data. This includes determining how and where it is stored and the tools used to do so.
Analyze:
Use the data to solve problems, make decisions, and support business goals.
Archive:
Keep relevant data stored for long-term and future reference.
Destroy:
Remove data from storage and delete any shared copies of the data.