ePIC provides Information Type Registries on the basis of the Cordra-software.
Information Types are a special class of additional metadata used for information about the data, which is usually necessary to know before the data is processed.
The access and integrity informations, the mime types, the formats of columns (or rows) in tabular data are examples for Information Types.
They are are supported by the Handle System and can be used for a wide range of higher-level services.
The Information Types are given in four different states: in preparation,
candidate, approved and deprecated. First types
are prepared in a special data type registry environment and are made stable
by the user. If they are stable
from a users perspective they are handed over to the registry of permanent types
and are classified as candidates. In this state they are open for a public
revision, and they are still due to possible changements as a result of
this discussion. After a period of three month after the last request for
change or revision they can be approved. An approved type will not be
changed any more. For each revision of an approved type a new type has to be
defined and needs to be approved again. This new type becomes then a newer
version of the original type, which is then classified as
deprecated.
http://dtr-test.pidconsortium.net/
http://dtr-pit.pidconsortium.net/