Published August 11, 2021 | Version v1
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Variables and the Variable Cascade

  • 1. DDI Alliance

Description

Introduces one of the core features of DDI Lifecycle and DDI Cross Domain Integration, the nuanced model of variables as they perform different functions within data sets and between them: the “variable cascade”.

 Foundational DDI Metadata is split into five modules:

  • Introduction to Concepts in DDI, which should be used first
  • Concept Systems – classifications, thesauri and Ontologies
  • Unit, Unit Type, Universe, and Population
  • Variables and Variable Cascade
  • Representations – Codes and categories

There are 26 slides in this deck.

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