The goal of this work is to study the representation of variables in DDI Lifecycle, specifically in iterative contexts: panels, cohorts, repeated surveys, periodic administrative files, etc.
Beyond the representation of variables, the work will also cover their organization into schemes and resource packages, and their relationships with other objects such as study units, physical instances, code lists, managed representations, etc.
- CLOSER Profile for DDI Lifecycle
- A controlled vocabulary for a social science knowledge graph: better definition of relationships (presentation, vocabulary)
- DDI-Lifecycle Best Practice BasedOn Section 4.3 (Document)
- SciencesPo paper on the strategy to document and disseminate longitudinal surveys
- NACDA paper The NACDA Colectica Portal: DDI Lifecycle for Longitudinal Data on Aging