Chapter 4. Data Management, Data Engineering, and Data Science Overview
Data Management
Data management refers to the process by which data is effectively acquired, stored, processed, and applied, aiming to bring the role of data into full play. In terms of business, data management includes metadata management, data quality management, and data security management.
Metadata Management
Metadata can help us to find and use data, and it constitutes the basis of data management.
Normally, metadata is divided into the following three types:
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Technical metadata refers to a description of a dataset from a technical perspective, mainly form and structure, including data type (such as text, JSON, and Avro) and data structure (such as field and field type).
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Operational metadata refers to a description of a dataset from the operation perspective, mainly data lineage and data summaries, including data sources, number of data records, and statistical distribution of numerical values for each field.
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Business metadata refers to a description of a dataset from the business point of view, mainly the significance of a dataset for business users, including business names, business descriptions, business labels, data-masking strategies.
Metadata management, as a whole, refers to the generation, monitoring, enrichment, deletion, and query of metadata.
Data Quality Management
Data quality is a description of whether the dataset is good or bad. Generally, data quality should be assessed ...
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