Difference between revisions of "Entity types"
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| − | An [[Entity|entity]] is an object about which an information system collects data. ICA-AtoM's architecture | + | An [[Glossary#Entity|entity]] is an object about which an information system collects data. ICA-AtoM's architecture includes a number of [[Glossary#Entity|entity]] types, but from a user's point of view there are four main types with which they will interact: |
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| + | * [[Glossary#Archival description|Archival descriptions]] | ||
| + | * [[Glossary#Authority record|Authority records (actors)]] | ||
| + | * [[Glossary#Archival institution|Archival institutions]] | ||
| + | * [[Glossary#Term|Terms]] | ||
[[Image:um1-3Entities2.png|442px|right|thumb|Core entities and their relationships]] | [[Image:um1-3Entities2.png|442px|right|thumb|Core entities and their relationships]] | ||
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| − | + | == Archival descriptions == | |
| + | * Provide contextual information about archival materials | ||
| + | * Are arranged into hierarchical levels ([[Glossary#Fonds|fonds]], series, files, items) | ||
| + | * Include [[Glossary#Data element|data elements]] based on the ICA's General International Standard Archival Description ([[RS-1|ISAD(G)]]) | ||
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| − | + | == Authority records (actors) == | |
| − | *Include [[Data element|data elements]] based on the ICA's | + | * Provide descriptions of the actors (corporate bodies, persons, and families) that interact with archival materials as [[Glossary#Creator|creators]], custodians, [[Glossary#Subject|subject]] [[Glossary#Access point|access points]], etc. |
| + | * Include [[Glossary#Data element|data elements]] based on the ICA's International Standard Archival Authority Records (Corporate bodies, Persons, Families) ([[RS-2|ISAAR(CPF)]]) | ||
| + | * Are linked to [[Glossary#Archival description|archival descriptions]] in ICA-AtoM by [[Glossary#Event|events]] delimited by start/end dates. Through events, one actor can have zero, one, or many relationships to zero, one, or many [[Glossary#Archival unit|archival units]]; and one [[Glossary#Archival unit|archival unit]] can have zero, one, or many relationships to zero, one, or many actors. Event relationships link ISAAR authority files (descriptions of actors) and ISAD records (descriptions of archival materials). | ||
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| + | == Archival institutions == | ||
| − | ' | + | * Provide descriptions of repositories that preserve and provide access to archival materials. |
| + | * Include [[Glossary#Data element|data elements]] based on the ICA's International Standard for Describing Institutions with Archival Holdings ([[RS-3|ISDIAH]]) | ||
| + | * Are actors that hold archival materials. Like all actors, an [[Glossary#Archival institution|archival institution]] has its own ISAAR [[Glossary#Authority record|authority record]]. But its characteristics as a repository (e.g. its opening hours, research services, contact information) are described separately in an ISDIAH institution record. The ISDIAH elements that are inherited from its ISAAR authority record are: authorized form of name, other forms of name, parallel forms of name, history, mandates/sources of authority, and administrative structure. | ||
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| − | + | == Terms == | |
| − | *Include minimal [[Data element|data elements]]; a future iteration of ICA-AtoM will extend one such [[Taxonomy|taxonomy]] ( | + | * Provide [[Glossary#Controlled vocabulary|controlled vocabularies]] used throughout the system (e.g. as [[Glossary#Access point|access points]] or in drop down [[Glossary#Value list|value lists]]) |
| + | * Are organized into separate [[Glossary#Taxonomy|taxonomies]] | ||
| + | * Include minimal [[Glossary#Data element|data elements]]; a future iteration of ICA-AtoM will extend one such [[Glossary#Taxonomy|taxonomy]] (function description) to include the elements found in the ICA's International Standard For Describing Functions ([[RS-4|ISDF]]) | ||
Revision as of 00:58, 6 March 2010
Please note that ICA-AtoM is no longer actively supported by Artefactual Systems.
Visit https://www.accesstomemory.org for information about AtoM, the currently supported version.
Entity types
Main Page > User manual > UM-1 System overview > UM-1.3 Entity types
An entity is an object about which an information system collects data. ICA-AtoM's architecture includes a number of entity types, but from a user's point of view there are four main types with which they will interact:
Archival descriptions
- Provide contextual information about archival materials
- Are arranged into hierarchical levels (fonds, series, files, items)
- Include data elements based on the ICA's General International Standard Archival Description (ISAD(G))
Authority records (actors)
- Provide descriptions of the actors (corporate bodies, persons, and families) that interact with archival materials as creators, custodians, subject access points, etc.
- Include data elements based on the ICA's International Standard Archival Authority Records (Corporate bodies, Persons, Families) (ISAAR(CPF))
- Are linked to archival descriptions in ICA-AtoM by events delimited by start/end dates. Through events, one actor can have zero, one, or many relationships to zero, one, or many archival units; and one archival unit can have zero, one, or many relationships to zero, one, or many actors. Event relationships link ISAAR authority files (descriptions of actors) and ISAD records (descriptions of archival materials).
Archival institutions
- Provide descriptions of repositories that preserve and provide access to archival materials.
- Include data elements based on the ICA's International Standard for Describing Institutions with Archival Holdings (ISDIAH)
- Are actors that hold archival materials. Like all actors, an archival institution has its own ISAAR authority record. But its characteristics as a repository (e.g. its opening hours, research services, contact information) are described separately in an ISDIAH institution record. The ISDIAH elements that are inherited from its ISAAR authority record are: authorized form of name, other forms of name, parallel forms of name, history, mandates/sources of authority, and administrative structure.
Terms
- Provide controlled vocabularies used throughout the system (e.g. as access points or in drop down value lists)
- Are organized into separate taxonomies
- Include minimal data elements; a future iteration of ICA-AtoM will extend one such taxonomy (function description) to include the elements found in the ICA's International Standard For Describing Functions (ISDF)