Publishing and Replicating Resources¶
What resources can be published to the network?¶
Environments are the only type of resource that can be published and shared between EaaSI nodes. (Software can/must be shared in the form of Software Environments)
Also, this only applies to Base Environments: Object Environments can not be published. Digital Objects and associated Object Environments are assumed to be collection items, unique to each node/institution, and therefore potentially subject to different terms of access, licensing, etc. than the software we are preserving and sharing under the guidelines of fair use.
Each node is responsible for determining terms of access to their Objects and Object Environments, within the tools provided by EaaSI.
What resources should be published?¶
Once published to the network, removing or deleting an environment may have severe technical repercussions, since users at other nodes may have generated derivatives from that environment, which would break.
Nodes and users are advised to use the beta testing period to consider how to design and enforce local workflows for publishing resources, given these technical restrictions.
When selecting Base and Software Environments to share with the rest of the network, EaaSI users and admins can consider questions posed by the Code of Best Practices in Fair Use for Software Preservation:
- Did you lawfully acquire your copy of the software included in the environment?
- Is the software still reasonably available in the commercial marketplace?
- Are there any limitations present in donation or acquisition agreements that might preclude fair use?
- What license(s) was the software distributed under?
The resources and environments provided by Yale University Library will hopefully provide illustrative examples for the type of content that might be appropriate to share, but this will also be an ongoing, collaborative conversation within the network.
How to publish Base and Software Environments¶
To publish a Base Environment from your local node to the network, locate the selected environment in the Private sub-section of the “Base Environment” tab of the Environments overview page. In the “Actions” dropdown menu, select “Details”:
In the top right corner of the environment detail page, click the “Publish” button:
Once you click “Publish”, you will lose the “Delete” environment option in the Public tab. Publishing cannot be undone via the EaaSI interface, and it can not be easily undone (if it can at all) by systems administrators or the EaaSI development team.
When the environment has been successfully published, it will move to the Public sub-section of the environments overview. After their next sync to the network, other nodes will be able to see and replicate this environment via their Remote sub-section.
How to replicate published Base Environments to a local node¶
In the Remote sub-section of the environments overview, locate the selected environment from another node to replicate to your local node, and select “Details” from the Actions dropdown menu:
On the environment details page, click the “Replicate” button in the top right corner of the screen:
On successful replication, the environment should now be available in the Public sub-section of the environments overview, allowing the user to interact and create derivative environments the same as any locally-imported or created environment.
The list of environments in the Remote sub-section can be periodically refreshed by syncing to other nodes (see OAI-PMH Synchronization).