The implementation of national research data repository in South - - PowerPoint PPT Presentation

The implementation of national research data repository in South Africa.

Mr Mbuyiselo Mqondisi Ndlovu Software Engineer OPEN REPOSITORIES 2019, June 10-13, 2019 | Hamburg, Germany

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Content

• Introduction
• Issues to address
• Current view of SA institutional data repositories
• Provisioning of a national data repository – Architecture
• Interaction with the storage
• Metadata
• Persistent Identifier
• DOI – Data Deposit Tool Interaction
• Integrated National Research Data Infrastructure

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Introduction

• Not all institutions have IT capability to provide digital storage for

their research data.

• Need to look at how all institutions can be supported by offering

them a central repository system.

• Provide competent and user friendly systems to help researchers

interact with centralized data repository is essential.

• This presentation covers applications and a storage facility

implemented by DIRISA.

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Issues to address

Committed to address research data challenges:

• Storage and back up
• Sharing data
• Preserving data
• Discovering data
• Data transfer
• Re-usability

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Current view of SA institutional data repositories

• South Africa has 26 institutions
• Own repositories and varied infrastructures
• Digital content generated by faculty, staff and students
• Currently not centralized

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Provisioning of a national data repository – Architecture

40 PB

Passive data: archival data & staging: VM access

8 PB

Active data: near real time interactive access Openstack Storage Virtualisation Cluster

iRODS

DIRISA cloud portal

Allocation of quotas per researcher. Reliable and persistent.

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Interaction with the storage

• Metalnx, iCommands (optional)
• Designed to work alongside iRODS
• Metalnx key features:

– Collection management – Metadata extraction – Metadata management – Metadata templates

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Metadata

• Dublin core elements - 15 metadata fields:

– Title – Subject – Description – Creator – Publisher – Contributor – Date – Type – Format – Identifier – Source – Language – Relation – Coverage – Rights

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Persistent Identifier

• Reference to a document, file, web page, or other object
• Globally unique
• Forms part of metadata fields
• Invoked by metalnx through API call during upload process
• The Anatomy of a Digital Object Identifier (DOI)

Source: http://www.ands.org.au/online-services/doi-service/doi-policy-statement

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DOI – Data Deposit Tool Interaction

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Integrated National Research Data Infrastructure

• One central application
• All nodes connected (Tier 1, Tier 2, and Tier 3)
• Retrieve data from all institutional repositories via one central UI
• Interoperability
• Improved collaboration and sharing

Tier 3 (Inst) Tier 2 (Regional) Tier 1 (National)

DIRISA Region 1 Institution 1 Institution 2 Region 2 Region 3

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Thank you