Saving that digital stuff digital curation and micro services
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Saving that Digital Stuff: Digital Curation and Micro-Services. Eric Weig Director, Digital Library Services. Kentuckiana Digital Library…. … establishes access to over 1 million digital images … is the state’s repository for historic digital newspapers.

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Saving that digital stuff digital curation and micro services

Saving that Digital Stuff: Digital Curation and Micro-Services

Eric Weig

Director, Digital Library Services


Kentuckiana digital library
Kentuckiana Digital Library…. Micro-Services

  • … establishes access to over 1 million digital images

  • … is the state’s repository for historic digital newspapers.

  • … allows one to search and listen to historic oral history interviews with legendary basketball coach Adolph Rupp.

  • … provides access to notable historic issues of the horse industry’s The Daily Racing Form.

  • … offers content regarding all 120 Kentucky counties.


1787 kentucke gazette
1787 Kentucke Gazette Micro-Services



Sabbatical project winter spring 2010
Sabbatical Project: Winter/Spring 2010 Micro-Services

Research and select an approach to establishing a Open Archival Information System (OAIS) digital repository to manage and preserve Kentuckiana Digital Library (KDL) digital assets into the future.

Research and select a replacement, new front end access system for the KDL.


Oais reference model
OAIS Reference Model Micro-Services


Basic ability for repository
Basic Ability for Repository Micro-Services

Put something into the repository one day and…

get that same thing out of the repository on another day with assurance that it is, in fact, the same thing.


Simple definition of digital preservation
Simple Definition of Digital Preservation Micro-Services

The long-term maintenance of a file sufficient to reproduce a facsimile of the original document and for the continued accessibility of the document through time and changing technology.


Digital stuff is temporary without the enactment of appropriate curatorial services
Digital Stuff is Temporary without the Enactment of Appropriate Curatorial Services

Digital files poorly managed or left alone die slow or fast.

Enact strategies and services that make the best and most intelligent effort to maintain validity of digital content over time.

Digital Curation is the process of establishing and developing long-term repositories of digital assets for current and future reference by researchers, scientists, and historians, and scholars generally.


Two approaches to digital curation and building repositories
Two Approaches to Digital Appropriate Curatorial ServicesCuration and Building Repositories

  • Digital Object Store (FEDORA/D-SPACE)

    • Monolithic single solution systems

    • All-or-nothing

    • Database-driven

  • Micro-Services

    • Modular

    • Functionally orthogonal

    • Build-as-you-go

    • File System-driven


Micro services
Micro-Services Appropriate Curatorial Services

Basing services around a basic, well-understood file system.

Each service is small and self-contained

collectively easier to develop, deploy, maintain, and enhance.

They are more easily replaced when they have outlived their usefulness.


Deciding factors for micro services
Deciding Factors For Micro-Services Appropriate Curatorial Services

  • Less

    • Susceptible to obsolescence

    • Complexity (no complicated databases)

    • Rigidity with modular approach

    • Technical investment (easier to develop/replace)

  • Allows for

    • Direct, unmediated access option

    • Scalability

    • Outlast lifespan of enterprise information systems


Digital curatorial services three examples
Digital Curatorial Services: Three Examples Appropriate Curatorial Services

Identitydistinguish one object from all others

Storagerobust, flexible, and easily deployed environment in which to manage the secure and persistent storage of files

Fixityverify the bit-level integrity of files managed by the Storage service


Kdl oais overview
KDL OAIS Overview Appropriate Curatorial Services