Tracing a semantic definition - Cloud

Talend Cloud Data Catalog User Guide

Version
Cloud
Language
English (United States)
Product
Talend Cloud
Module
Talend Data Catalog
Content
Data Governance

Trace the semantic definition of a field in a report to understand its meaning.

Three methods are used to provide an answer to a definition lookup and apply in the following order:
  • direct semantic link from a term in a business glossary
  • data flow lineage to the data warehouse or other data stores in the physical architecture and semantic up to a business glossary
  • name matching between business glossary term and field name

Before you begin

  • A business glossary has been created and populated.
  • Glossary terms are mapped semantically to the corresponding data in the technical architecture.

Procedure

  1. Open the details page of an object.
  2. Click the Semantic Flow tab.
  3. Select Definition from the Type list.
  4. Click the List tab to open the detailed column level lineage report.
    For example, you need to know the meaning of CustomerPaymentType in the Customer Payments report. CustomerPaymentType is defined by the Customer Payment Type glossary term.
  5. Click the Diagram tab to open a graphical view of the lineage.
    In this example, the blue dashed line represents the semantic link from the report field to the glossary term.