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OAIS STANDARD MODEL FOR DIGITAL PRESERVATION
OAIS (Open Archival Information System) is a reference
model for creation of a digital repository. ISO 14721:2012.
Piql Preservation Services has been designed to match
the OAIS entities.
INFORMATION PACKAGE - PIQL
Our main differentiator is the self-contained informa-
tion package piqlFilm: File(s) + (Source code, semantic
document, file format(s) specification) + Metadata (PDI
1
)
Piql writes the Archival Information Package (AIP) onto
the film and preserves the information ensuring its un-
derstanding and accessibility any time in the future, re-
gardless of the evolving technologies.
We can also provide Comprehensive Preservation
2
, if
the data owner wants to preserve proprietary or unsus-
tainable file formats. To ensure maximum understand-
ability and integrity, Piql can also preserve a visual repre-
sentation of the file content.
INGEST
Piql receives information from the data owners and pre-
pares it for storage. Part of the preparations is to per-
form a file format normalization process:
• Virus checking
• File format identification
• Validation
• Metadata extraction or automatic metadata
population.
We then add all representation information and PDI
metadata to be written on film along with the data con-
tent.
ARCHIVAL STORAGE
The Piql Preservation System accepts AIPs, writes them
to film for long term storage, checks for errors, and pro-
vides requested AIPs to the Access entity.
Piql and OAIS
-
reference model
1
PDI: Preservation Description
2
Comprehensive Preservation: Includes Bit Preservation
3
plus meta-
data ensuring accessibility to the data in the future. Functionality of
the data might not be preserved due to proprietary formats.
3
The process of preserving a file as it was submitted.
PRESERVATION PLANNING
ADMINISTRATION
PRODUCER
INGEST
ACCESS
DATA MANAGEMENT
ARCHIVAL STORAGE
AIP
SIP
DESCRIPTIVE
INFORMATION
CONSUMER
MANAGEMENT
QUERIES
QUERY RESPONSES
ORDERS
SIP: Submission Information Package
|
AIP: Archival Information Package
|
DIP: Dissemination Information Package
AIP
DESCRIPTIVE
INFORMATION
DIP