Discovering Resources Across Archives
The resource discovery system of NESSTAR is metadata-driven.
The detailed structure of the DDI-DTD allows users to search for data with a very high precision.
Researchers interested in particular subjects can move beyond keywords and abstracts (normally included in OPACs) and search directly on variable descriptions, question texts, etc.
Searches can also be conducted on concepts such as method of data collection (e.g. telephone interviews, face-to-face interview or self-completion questionnaires) or sampling strategy (e.g. random, stratified, etc).