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Welcome to the ddf--gapminder--systema_globalis wiki!

Dataset Github ddf-- project within a valid dataset everything id defined without conflicts and accessible in a qnique way

Concepts any header in a table, anything that can be a header every concept belongs to a dataset. id's of concepts should be unique concepts are of concept types.

Concept types Known beforehand and are used in particular meaning

Data points

Entities If you want to enumerate all possible values of a concept you define an entity domain. Every single value is an entity. There are no gaps in entity domains. All possible values are enumerated. "Unstated" or "other" gender is also an entity. Entities are unique within their domains. Male is unique within "geo" and a differnet male is unique in domain "gender"

Entity sets Groupings of entities within domain. The key thing is multityping via is-- operator. Discussion about the opinionn of Chinese government. One entity can be a memeber of multiple sets.

Entity properties

Entity synonyms Example: geo ids can be different in datasets. Should be resolved when importing data from data provider. 20-Washington conflicts should be resolved too.

Drillups you can describe hierarchical relations between entity sets and thus between entities you do this by decorating the entities with entity properties like "country" and "region"