使用数据目录掌握元数据.pptx

1、Mastering Metadata With a Data Catalog,Richard HuffineFDICHolly MaykowEnterprise KnowledgeMadeleine AdamecEnterprise Knowledge,Introduction to Metadata&Data Catalogs,Metadata in Actionat the FDIC,Whats Next?,Agenda,Metadata&Data Catalogs Introduction,What is Metadata?,Metadata refers to specific cha

2、racteristics of a piece of content that provides detailed information about that content.It is also referred as to“metadata fields”or“tags”.,There are generally three types of Metadata:,Structural Metadata provides context about what type of thing it is to enable machine processing,such as a file fo

3、rmat.,Administrative Metadata provides context about how the object should be managed or governed,such as stewardship.,Descriptive Metadata provides context related to the content of the information or data object it is attached to,such as definitions or alternative names.,About Metadata Modeling,A

4、metadata model contains classes with a generic set of fields that define and provide relevant details about assets in the catalog.,Assets may have a standardized metadata profile,or set of metadata fields.,Once classes are determined,relationships between them can be developed to provide more contex

5、t.,Standardizes data schemas across sources for consistent and reusable structures.Supports the maintenance and referenceability of data lineage with a clear view of where data is sourced and how it has been used or changed over time.Facilitates access management and permissioning to ensure robust d

6、ata security.,What is a Data Catalog?,A data catalog is a data governance tool that allows you to collect,aggregate,and present logical and physical metadata to end users.,What Does It Do?Contextualizes and enriches information with meaning of data based on business or data domains.Establishes relat