Reference

Libraries

Four libraries hold data that is not an object and is shared by many objects:

LibraryContentField type that refers to it
Address book Institutions and their contacts: lenders, insurers, shipping agentsAddress
Authority data Terms and people with identifiers from GND, Wikidata and other sourcesAuthority record
Locations Locations with coordinates and addressGeolocation
Events Object history: exhibition, loan, acquisition, conservationnone. A link instead of a field

Literature is not a library in the menu but a project of its own, of the object type Literatur (literature), which the process template Literatur creates. Objects refer to it through the Object field type or a link, and Moliri outputs the references as citations.

Library entries are connected to an object in two ways: through a field of the matching field type, or through a link area in the layout, which takes any number of targets with a link type such as “Herausgeber” (publisher) or “dokumentiert in” (documented in).

The Libraries menu (status 9) also contains the file library and the plan library of the wall planner (Plans).

What all four have in common

They apply to the whole instance. There is no address book per project. A lender who appears in two exhibitions is one entry.

A change takes effect everywhere. If a lender moves, the address changes in every object and in every new contract. That is why the interface warns you before you edit shared entries and tells you how many objects are affected.

Entries are created as you work. The usual route is to search in the field and accept a hit. The library itself is used more for tidying up.

Check the usage before deleting. Every library shows where an entry is used. Authority data, locations and events can be sorted by name or usage, and Unused only shows what can be removed without consequences.

How they differ

Address bookAuthority dataLocationsEvents
External sourcenoneGND, Wikidata, the vocabularies of the Getty Research Institute, IconclassOpenStreetMap (Nominatim)none
Sync with the sourcenowith Wikidata and GNDnono
Two levelsInstitution and personnonoType and event
Creatingfrom status 6when assigning in the fieldwhen assigning in the fielddepending on access to the type
Details on the linkin the link areain the link areanoyes

The last row is the essential difference. An event link carries its own details, such as the catalogue number or a shorter loan period, which apply only to this object in this event. An address or authority data field is a plain reference; in the link area, by contrast, every link carries the additional fields of its type, such as the form of the name as printed. Locations only exist as a field.