specifies the content of each of the
|t||Release Format 2|
This table is followed by illustrations of each of the
using the small same pattern of content development over seven release cycles. These illustrations highlight the key differences and the
SNOMED CT Release Types
The files representing each type of component contain every version of every component ever released.
The files representing each type of component contain one version of every component released up to the time of the snapshot. The version of each component contained in a snapshot is the most recent version of that component at the time of the snapshot.
The files representing each type of component contain only component versions created since the previous release. Each component version in a
represents either a new component or a change to an existing component.
The seven columns in each of the following illustrations represent the content of seven releases (numbered 1-7). Each
is identified by a letters (A-K). A
version is represented by the identifying letter followed by a number (1-7) representing the release cycle in which that
version became effective.
shows the content of a series of
. The yellow background color highlights the set of
versions that are also present in the snapshot for the same
versions are shown in gray in releases versions after they have been superseded by a new
version. Newly added
versions, shown in red, are also present in the delta for the same
The content of the
in any chosen version is identical to the combined content of all the
up to and including that version. Thus adding a
to the previous version of the
for the new version. The
is derived from the
by removing all except the most recent version of each
Full release illustration
Delta release illustration
Snapshot release illustration
Note: In a real
each of the letters A-K would be replaced by a
) and each of the release cycle numbers 1-7 would be replaced by the