Dewey Classifications
The Dewey Classification is displayed in Analytics in the Dewey Classifications shared dimension, available in several subject areas. Dewey classification information is derived from the bibliographic record in most subject areas, except for the Physical Items subject area, where it can be derived from either the holdings record or the bibliographic record.
- For MARC21
Taken from field 082$$a
https://www.loc.gov/marc/bibliographic/bd082.html - For UNIMARC
Taken from field 676$$
There are three levels of the Dewey Classification stored in Alma Analytics. Each level is referred to by a numbered group (Group1, Group2, and Group3).
The group fields display the names as follows:
Using the hierarchy option in this dimension, the user can drill down from Group1 to Group3. In each level, the user can see measures accumulated to the relevant group.
For example:
-
000 Computer science, information & general works
o 010 Bibliography
o 000 Computer science, information & systems
-
005 Computer programming, programs & data
-
000 Computer science
-
004 Data processing & computer sciences
-
This is presented in Alma Analytics as follows:
If there is more than one classification code, the last one appears.
| Field | Description | Data Type | Size |
|---|---|---|---|
| Dewey Number |
The Dewey Number is a unique classification code assigned to a specific subject or topic category. The first 3 digits of the Dewey Classification. |
VARCHAR | 15 |
| Group1 | The name (label) of the first Dewey classification level. | VARCHAR | 500 |
| Group2 | The name (label) of the second Dewey classification level. | VARCHAR | 500 |
| Group3 | The name (label) of the third Dewey classification level. | VARCHAR | 500 |
| Dewey Classifications | The hierarchy column that allows the user to drill down from the first level of the Dewey Classification to the third level. |