1. PREMIS What is PREMIS? – Preservation Metadata Implementation Strategies When is PREMIS use? – PREMIS is used for “repository design, evaluation, and archived information packaged among preservation repositories” How is PREMIS use? – PREMIS Data Dictionary provides guidelines regarding “the information a repository uses to support the digital preservation process” What is PREMIS? – Preservation Metadata Implementation Strategies When is PREMIS use? – PREMIS is used for “repository design, evaluation, and archived information packaged among preservation repositories” How is PREMIS use? – PREMIS Data Dictionary provides guidelines regarding “the information a repository uses to support the digital preservation process”

2. PREMIS What is “preservation metadata” referring to? – “It is information that supports and documents the digital preservation process”. Which includes information such as: Provenance – refers to who has ownership of the digital object Authenticity – refers to the claim of the digital object Preservation activity – refers to the activities that have been carried out to preserve the digital object Technical environment – refers to the tasks required to interpret and use the digital object Rights management – refers the intellectual property rights that must be declared What is “preservation metadata” referring to? – “It is information that supports and documents the digital preservation process”. Which includes information such as: Provenance – refers to who has ownership of the digital object Authenticity – refers to the claim of the digital object Preservation activity – refers to the activities that have been carried out to preserve the digital object Technical environment – refers to the tasks required to interpret and use the digital object Rights management – refers the intellectual property rights that must be declared

3. PREMIS Data Dictionary Conventions – Semantic units : refers to a piece of information or knowledge Example: objectIdentifer under the – Containers: refers to a xml tag that have no value rather serve to group related semantic units – Subunits: refers to the units held within a container – Extension containers: are containers that are designed to give a place for non-PREMIS metadata Conventions – Semantic units : refers to a piece of information or knowledge Example: objectIdentifer under the – Containers: refers to a xml tag that have no value rather serve to group related semantic units – Subunits: refers to the units held within a container – Extension containers: are containers that are designed to give a place for non-PREMIS metadata

4. PREMIS Data Model

5. Intellectual Entity – refer to content that can be describe as a unit (e.g. books, maps, articles)

6. PREMIS Data Model Objects – refer to units of information in digital form. PREMIS defines different kinds of objects it can an a file, bitstream or representation File – it is a computer file, such as a pdf, txt or JPEG Bitstream – refer to data bits within a file that contain common properties for preservation purposes Objects – refer to units of information in digital form. PREMIS defines different kinds of objects it can an a file, bitstream or representation File – it is a computer file, such as a pdf, txt or JPEG Bitstream – refer to data bits within a file that contain common properties for preservation purposes

7. PREMIS Data Model Representation – refer to a set of files, that includes structural metadata, required to be identified, stored and maintained in order to assemble a complete rendition of an Intellectual unit. – For example, text files and images files of a magazine are required to form a representation. Representation – refer to a set of files, that includes structural metadata, required to be identified, stored and maintained in order to assemble a complete rendition of an Intellectual unit. – For example, text files and images files of a magazine are required to form a representation.

8. PREMIS Data Model Sample syntax The units of information that can be recorded includes: – Type of object (file, bitstream, or representation) – A unique identifier for the object (type and value) For example, FDsys ACP R0b002ee180b003b0 This particular segment states that this object is a representation (that is a set of files, this representation has a unique identifier) Sample syntax The units of information that can be recorded includes: – Type of object (file, bitstream, or representation) – A unique identifier for the object (type and value) For example, FDsys ACP R0b002ee180b003b0 This particular segment states that this object is a representation (that is a set of files, this representation has a unique identifier)

9. PREMIS Object Example Other units of information that can be recorded includes: – “Information indicating the policy on the set of preservation functions to be applied to an object” FDsys ACP D09002ee180b003a9 full Other units of information that can be recorded includes: – “Information indicating the policy on the set of preservation functions to be applied to an object” FDsys ACP D09002ee180b003a9 full

10. PREMIS Object Example Other units of information that can be recorded includes: – Information indicating if the object is subject to one or more processes of decoding or unbundling – information used to verify if an object has been changed in an undocumented or unauthorized way – The size of the object – The format of the object For example Other units of information that can be recorded includes: – Information indicating if the object is subject to one or more processes of decoding or unbundling – information used to verify if an object has been changed in an undocumented or unauthorized way – The size of the object – The format of the object For example

11. PREMIS Object Example 0 SHA-256 4977070b92f0bb2642c6be368ad68a8d1d1c5dbbb3310544db781f56a860b0a1 FDsys 9326 text/plain PRONOM x-fmt/111 Plain Text File 0 SHA-256 4977070b92f0bb2642c6be368ad68a8d1d1c5dbbb3310544db781f56a860b0a1 FDsys 9326 text/plain PRONOM x-fmt/111 Plain Text File

12. PREMIS Object Example Other units of information that can be recorded includes: – The original name of the object (prior to being named by the repository) – Information about where and how a files are stored in the repository – A categorization of the nature of the relationship (for instance, “structural” is a relationship between parts of an object) Other units of information that can be recorded includes: – The original name of the object (prior to being named by the repository) – Information about where and how a files are stored in the repository – A categorization of the nature of the relationship (for instance, “structural” is a relationship between parts of an object)

13. PREMIS Object Example S3880IS.txt URI file:/u02/app/emc/documentum/data/fdsysprod1/fdsysprod1/content_storage_0 1/00002ee1/80/55/b0/48.txt hard disk structural is part of FDsys ACP R0b002ee180b003b0 S3880IS.txt URI file:/u02/app/emc/documentum/data/fdsysprod1/fdsysprod1/content_storage_0 1/00002ee1/80/55/b0/48.txt hard disk structural is part of FDsys ACP R0b002ee180b003b0

14. PREMIS Data Model Events – refers to actions that involve an object and an agent known to the system – Events are critical for maintaining the digital provenance of an object (helps demonstrates the authenticity of the object) Examples of Events: – modifying an document – actions that create new relationships Object could be related to another object as a result of a particular event, for instance if a program takes file 1 and generates a different version known as file 2 – Actions that check the validity and integrity of the objects (i.e. virus scan) Events – refers to actions that involve an object and an agent known to the system – Events are critical for maintaining the digital provenance of an object (helps demonstrates the authenticity of the object) Examples of Events: – modifying an document – actions that create new relationships Object could be related to another object as a result of a particular event, for instance if a program takes file 1 and generates a different version known as file 2 – Actions that check the validity and integrity of the objects (i.e. virus scan)

15. PREMIS Data Model Sample syntax The information that can be recorded under event includes: – A unique identifier for the event – Date, time and type of event – Detail description of the event – The outcome of the event – Objects and agents involved in the event and their specific roles Agents role are defined here because agents can perform different roles in different events Sample syntax The information that can be recorded under event includes: – A unique identifier for the event – Date, time and type of event – Detail description of the event – The outcome of the event – Objects and agents involved in the event and their specific roles Agents role are defined here because agents can perform different roles in different events

16. PREMIS Event Example FDsys:event 1cdd2b6c-5a2d-449b-b386-ebb15eb4af11 Rendition Submitted 2010-10-06T19:38:47-04:00 Rendition R0b002ee180b003b0, uploaded by hotfolderadmin, was submitted in the Submission Information package P0b002ee180b003af Success FDsys:agent hotfolderadmin implementer FDsys R0b002ee180b003b0 outcome FDsys:event 1cdd2b6c-5a2d-449b-b386-ebb15eb4af11 Rendition Submitted 2010-10-06T19:38:47-04:00 Rendition R0b002ee180b003b0, uploaded by hotfolderadmin, was submitted in the Submission Information package P0b002ee180b003af Success FDsys:agent hotfolderadmin implementer FDsys R0b002ee180b003b0 outcome

17. PREMIS Data Model Agents – refer to people, organizations, or software associated with events, more specifically preservation events, of an object – In the data model diagram, there is no arrow from Agent entity to the Object entity, that is because Agents influence Objects indirectly through Events. Agents – refer to people, organizations, or software associated with events, more specifically preservation events, of an object – In the data model diagram, there is no arrow from Agent entity to the Object entity, that is because Agents influence Objects indirectly through Events.

18. PREMIS Data Model Sample syntax The information that can be recorded under agent includes: – A unique identifier for the agent – The agent’s name – The type of agent (people, organization or software) Sample syntax The information that can be recorded under agent includes: – A unique identifier for the agent – The agent’s name – The type of agent (people, organization or software)

19. PREMIS Agent Example FDsys:agent hotfolderadmin hotfolderadmin Person FDsys:agent hotfolderadmin hotfolderadmin Person

20. PREMIS Data Model Rights – refers to the rights and permission that are directly relevant to preserving objects Sample syntax The information that can be recorded under right includes: – A unique identifier for the rights statement – The action(s) that the rights statement allows – The object(s) to which the statement applies – The agents involved in the rights statements and their roles Rights – refers to the rights and permission that are directly relevant to preserving objects Sample syntax The information that can be recorded under right includes: – A unique identifier for the rights statement – The action(s) that the rights statement allows – The object(s) to which the statement applies – The agents involved in the rights statements and their roles

21. References http://www.loc.gov/standards/premis/understanding-premis.pdf http://www.oclc.org/research/activities/past/orprojects/pmwg/pre mis-final.pdf http://www.oclc.org/research/activities/past/orprojects/pmwg/pre mis-final.pdf http://www.loc.gov/standards/premis/understanding-premis.pdf http://www.oclc.org/research/activities/past/orprojects/pmwg/pre mis-final.pdf http://www.oclc.org/research/activities/past/orprojects/pmwg/pre mis-final.pdf