Catalog
Discover and navigate collections and data sources in RDS. The catalog provides information about the collections and views that are available in Rich Data Servicesand data sources overall, and can aid in helping users locate data of interest.
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Data
Rich Data Services offers SQL like functionality to query Select and tabulate data , combined with metadata search and retrievalin an efficient manner. Selecting data can be done with traditional parameters but also includes innovative features such as the ability to use regular expressions or keywords/concepts to select variables, the option of performing on the fly recodes or computing new values, and paging to control the data flow. RDS also exposes a tabulate operation, which provides Tabulation can be done through the use of specialized parameters to easily and rapidly produce aggregated data or tables.
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Metadata
Put the data in context by accessing the information surrounding the views, variables, and classificationsCapture extensive knowledge around the data, such as provenance, extended column/variable information (e.g. plain labels, definitions, questions, concepts), classifications (code/value labels), and other custom properties. This metadata is an essential part to the application and improves the querying, formatting, and packaging services of RDS. The metadata can be injected and returned alongside the data in JSON, or directly queried using dedicated metadata services. This section will cover the ability to query the metadata by itself.
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