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Event Type | Vocabulary | Internal/ External | Description |
---|---|---|---|
capture | PREMIS | external | The process whereby a repository actively obtains an object. |
compression | PREMIS | external | The process of coding data to save storage space or transmission time. |
creation | PREMIS | internal | The act of creating a new object. |
deaccession | PREMIS | external | The process of removing an object from the inventory of a repository. |
decompression | PREMIS | external | The process of reversing the effects of compression. |
decryption | PREMIS | external | The process of converting encrypted data to plain text. |
deletion | PREMIS | internal | The process of removing an object from repository storage. |
digital signature validation | PREMIS | external | The process of determining that a decrypted digital signature matches an expected value. |
fixity check | PREMIS | both | The process of verifying that an object has not been changed in a given period. |
ingestion | PREMIS | internal | The process of adding objects to a preservation repository. |
message digest calculation | PREMIS | external | The process by which a message digest ("hash") is created
|
migration | PREMIS | external | A transformation of an object creating a version in a more contemporary format. |
normalization | PREMIS | external | A transformation of an object creating a version more conducive to preservation. |
replication | PREMIS | external | The process of creating a copy of an object that is, bit-wise, identical to the original. |
validation | PREMIS | external | The process of comparing an object with a standard and noting compliance or exceptions. |
virus check | PREMIS | external | The process of scanning a file for malicious programs. |
metadata modification | UCSD | internal | Modifying an RDF source by posting RDF, using SPARQL Update, etc. |
content modification | UCSD | internal | Modifying a non-RDF source by uploading updated content. |
content removal | UCSD | internal | Removing a non-RDF source from the repository. |
New Types
We are proposing four event types not in PREMIS, and also a distinction between internal and external events. The event types are defined as skos:Concept instances in the PREMIS eventType scheme following the requirements of the PREMIS ontology. Below are the URIs and types for these new concepts:
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