-
Notifications
You must be signed in to change notification settings - Fork 0
Metadata
Jérôme Beau edited this page Mar 4, 2018
·
1 revision
Strictly speaking, meta-data is data about data. That is, a way to describe data (specify its semantics, relationships with other data, and so on).
Archipelago uses 3 types of metadata :
- the database schema, that describes the structure of some existing database and the way it can be accessed.
- that meta model, that describes the structure of the data the user wants to handle. That is, the structure of the view through which concrete data are to be viewed.
- the database mapping, that describes the rules to link/match/convert between the 2.
The reference implementation of the Archipelago project will provide :
- databases schemas for several known databases
- A sample meta-model
- mappings from those known databases to this meta model