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Preservation Events Controlled Vocabulary

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on October 28, 2015 at 6:02:24 pm
 

Feedback should be given through the table below. There is a sample entry that shows the form we would prefer.

 

We will accept private comments. In this case, a copy of the table should be made and sent to Peter McKinney (Peter.McKinney[@]dia.govt.nz).

 

Discussion on the notion of core (as opposed to what should be core) should take place in the space below the table.

 

 

Questions for Consideration

  1. What are your thoughts on the terms introduced?
    1. Are they consistent with your organisation’s view of digital preservation? If not, what is wrong?
    2. What is missing?
    3. What should not be included?
  2. What are your thoughts on the notion of “core” preservation events?
  3. If you utilise a different controlled list, can this be mapped consistently to it?
  4. The current controlled vocabulary uses the term “Validation”. The draft contains the term “Format Validation”, which is more specific. What are the ramifications for you if the new term is kept in the final version changed?
  5. Is there anything else that should be supplied with the final version to make it more useable?

 

Timescale for Comment

This review process is now open and will close on 29th February 2016

For more information or Peter McKinney (Peter.McKinney[@]dia.govt.nz).

 

 

 

# Term Core Event? Definition/description Link Comment
1 accession   The process of adding an object to the inventory of a repository. This provides a clear delineation point for the assumption of responsibility for the digital content’s preservation.    Peter McKinney [Institution]: Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. 
2 adding emulation information    Adding to an object's metadata, information necessary in order to emulate that object (such as the application used to create the object). This is a special case of "Information package modification".     
3 appraisal   The process of assessing whether a package of digital material should be included in the repository. It is recorded when an organisation accepts or rejects curatorial responsibility for a package, usually due to verification failure or a failure to meet expected standards. [eventOutcome being accepted or rejected]    
4 capture core The process whereby a repository actively obtains an object. Includes the notion of "receipt" http://id.loc.gov/vocabulary/preservation/eventType/cap  
5 compression   The process of coding data to save storage space or transmission time. http://id.loc.gov/vocabulary/preservation/eventType/com  
6 creation   The act of creating a new object. http://id.loc.gov/vocabulary/preservation/eventType/cre  
7 data carrier migration   A transformation of an object resulting from the creation of a copy on a more contemporary data carrier.    
8 deaccession   The formal process of removing an object from the inventory of a repository. This may be by transfer to another repository, return to the depositor or by permanent deletion.  http://id.loc.gov/vocabulary/preservation/eventType/dea  
9 decompression   The process of reversing the effects of compression. http://id.loc.gov/vocabulary/preservation/eventType/dec  
10 decryption core The process of converting encrypted data to plain text. http://id.loc.gov/vocabulary/preservation/eventType/der  
11 deletion core The process of permanently destroying an object in a repository. http://id.loc.gov/vocabulary/preservation/eventType/del  
12 deselection   A file or representation which is described and defined in the packaging information but is NOT ingested on purpose. This might happened if e.g. a file is migrated prior to ingest and only the migrated copy is kept. To provide a complete audit trail the original file has to be defined and has its own PREMIS record.    
13 digital signature validation   The process of determining that a decrypted digital signature matches an expected value. http://id.loc.gov/vocabulary/preservation/eventType/dig  
14 dissemination   The process of transforming one or more archival information packages (AIP) into a dissemination information package (DIP) for use outside of the preservation repository    
15 file extension change   Assignment of a new filetype extension to a file object; typically done only if the existing extension was found to be incorrect.    
16 file system analysis   The process of analysing one or more filesystems from raw or forensically packaged images  
 
17 file system extraction   The process of extracting one or more filesystems from raw or forensically packaged images    
18 filename change   Removal of prohibited characters from file and directory names    
19 fixity check core The process of verifying that an object has not been changed in a given period. http://id.loc.gov/vocabulary/preservation/eventType/fix  
20 forensic feature analysis   The process of forensically analysing raw bitstreams    
21 format identification core Identification of the object's file format and version (note: this event is different from 'validation' which compares the object to known format specifications)    
22 format validation   The process of comparing an object with a standard and noting compliance or exceptions. http://id.loc.gov/vocabulary/preservation/eventType/val  
23 identifier assignment core Assignment of an identifier – a special case of information package modification    
24 imaging   The process of extracting a disk image from physical media    
25 Information Package merging    Recorded when Information Packages (SIP, AIP, DIP) are merged together.    
26 Information Package splitting    Recorded when Information Packages (SIP, AIP, DIP) are split  apart.    
27 ingest end core Completion of the total ingest process.     
28 ingest start core An event will be generated when the ingest process is started and the ingest process will be completed when an approval/acceptance event is recorded.)    
29 ingestion core The process of adding objects to a preservation repository. More detail can be gained by utilising "Ingest Start" and "Ingest End" rather than this one event.     
30 message digest calculation core The process by which a message digest ("hash") is created. http://id.loc.gov/vocabulary/preservation/eventType/mes  
31 metadata extraction (propertyExtraction) core Extraction of technical (or non-technical) metadata like the resolution, colordepth etc. from a file using tools such as JHOVE.    
32 metadata modification   Changes to the metadata about an object. Recorded when a package or file has been modified, added or deleted    
33 migration core A transformation of an object creating a representation in a more contemporary format. http://id.loc.gov/vocabulary/preservation/eventType/mig  
34 normalization core A transformation of an object creating a representation in a supported preservation format. http://id.loc.gov/vocabulary/preservation/eventType/nor  
35 object modification   The act of changing a file or bitstream after receipt of the object, but before the object is ingested into the repository.    
36 object validation core  Structure and compliance validation of the Object (e.g. an AIP)    
37 quality review   recorded when quality review is performed and noted as passed or failed    
38 quarantine   Segregate objects for designated period of time (e.g. before running a virus check)    
39 recovery   The act of regaining one or more files after a disaster. Usually occurs as part of a disaster recovery process.     
40 redaction   The process of modifying the content of a digital object to remove or mask information considered to be sensitive in nature (that is, the information cannot be viewed by non-authorized users of the repository).

The process of eliminating potentially private and sensitive data from a disk image or copy thereof.
   
41 replication    The process of creating a copy of an object that is, bit-wise, identical to the original. http://id.loc.gov/vocabulary/preservation/eventType/rep  
42 SIP creation  core Creation of the SIP    
43 storage migration   A change to an object’s storage location    
44 unpacking   Extracting objects from packages (e.g. .zip, .tar)    
45 unquarantine   Release of a file from quarantine    
46 virus check core The process of scanning a file for malicious programs. http://id.loc.gov/vocabulary/preservation/eventType/vir  
47 wellformedness check   Checking if a file is wellformed. Often validation checks already include wellformedness checks. In any case the result of those combined checks is recorded in two separate events.    

 

 

CoreEventsDiscussion

The Committee has introduced the notion of core preservation events. These are events that may be deemed to be central to any organisation wanting to preserve digital objects in the long-term. The concept is one that is perhaps problematic and will generate discussion; for example, if an event is core, does the organisationhave to run on every object, or are they rather only an indication of should be available to be run? 

 

Comments

Peter McKinney [Institution]:  Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. 

 

 

 

 

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