Archiving Policy

1. Purpose of Digital Preservation

Digital scholarly publishing depends on the continuing availability of electronic infrastructure. Websites, servers, software platforms, file formats, and organizations may change over time.

ETII therefore maintains a preservation strategy designed to ensure that published scholarly content can remain available and recoverable even if the journal's primary website becomes temporarily or permanently unavailable.

The journal's preservation objectives include:

• protecting the scholarly record against accidental data loss;
• reducing dependence on a single publishing server or platform;
• preserving published articles and associated metadata;
• supporting recovery following technical or organizational failure;
• maintaining the authenticity and integrity of published content;
• supporting long-term accessibility of scholarly publications; and
• ensuring continuity of access if publication activities cease.

2. Multi-Layer Preservation Model

ETII does not rely solely on the operational copy of the journal hosted on its website. Published content is supported by multiple preservation layers.

The use of more than one preservation mechanism provides additional resilience against technical failure, data loss, organizational change, or interruption of the journal's primary publishing infrastructure.

3. PKP Preservation Network (PKP PN)

ETII participates in the PKP Preservation Network (PKP PN), a digital preservation service developed for journals using Open Journal Systems.

Through the PKP PN preservation infrastructure, eligible published journal content can be deposited and preserved independently from the journal's primary web server.

The PKP PN mechanism is designed to identify new and modified published content and support continuing preservation through the network.

ETII uses this service as one component of its long-term digital preservation strategy.

4. Portico Digital Preservation

ETII also preserves its scholarly content through Portico, an independent digital preservation archive for scholarly electronic resources.

Portico provides preservation infrastructure designed to maintain electronic scholarly content over the long term and to protect it against technological and organizational change.

ETII's participation in Portico provides a preservation mechanism independent from both the journal's operational website and the OJS platform itself.

Preserved content is managed in accordance with Portico's preservation, integrity, format-management, and access policies.

Further information about Portico is available at:

https://www.portico.org/

5. Content Covered by Preservation

The preservation program is intended to protect the scholarly content constituting the journal's published record.

Depending on the preservation service and deposited package, preserved materials may include:

• published journal articles;
• article PDF files;
• article-level publication metadata;
• issue-level metadata;
• article titles and abstracts;
• author and affiliation metadata;
• references;
• DOI and identifier information;
• license metadata;
• supplementary materials where supported and deposited;
• corrections;
• retractions and related notices; and
• other files forming part of the published scholarly record.

6. Preservation of the Version of Record

ETII regards the formally published article on the journal platform as the Version of Record.

Preservation arrangements are intended to maintain an authentic and recoverable record of published scholarly content rather than merely storing temporary author-submission files.

Where a correction, retraction, or other formal update is issued, the publication record should remain transparent and the relevant notice should be associated with the original article.

7. Metadata Preservation

Preservation of the scholarly record includes maintaining bibliographic and technical metadata necessary to identify and manage published content.

Relevant metadata may include:

• article title;
• author information;
• institutional affiliations;
• abstract;
• keywords;
• journal title;
• volume and issue;
• publication date;
• DOI;
• license information;
• references; and
• other structural publication metadata.

8. Persistent Identifiers

Where a DOI has been assigned, the DOI forms part of the article's persistent scholarly identity and is maintained together with relevant publication metadata.

Persistent identifiers support reliable citation, discovery, linking, metadata exchange, and long-term identification of the Version of Record.

Persistent identifiers complement, but do not replace, independent digital preservation.

9. Corrections, Retractions, and Post-Publication Notices

ETII seeks to preserve the history of the scholarly record rather than silently replacing or deleting published material.

When a formal correction, retraction, Expression of Concern, or other post-publication notice is issued, the journal seeks to:

• retain the bibliographic record of the original publication;
• clearly identify the status of the article;
• link relevant notices to the original publication;
• update publication metadata where appropriate; and
• support preservation of the updated scholarly record.

10. File Formats and Technological Change

Digital preservation must account for the possibility that software and file formats may become obsolete.

ETII therefore relies on preservation services that are designed to manage preserved digital objects over time rather than relying solely on the continued readability of files stored on the live publishing server.

Preservation services may undertake format monitoring, migration, normalization, or other preservation actions in accordance with their technical policies when necessary to maintain usability and integrity.

11. Preservation Redundancy

ETII's use of both PKP PN and Portico reflects a principle of preservation redundancy.

Multiple independent preservation mechanisms reduce the risk that failure of any single server, software platform, service, institution, or technical environment will result in permanent loss of the scholarly record.

12. Operational Backups and Digital Preservation

Routine operational backups and long-term digital preservation serve different purposes.

Operational backups support recovery from short-term server or system failures. Independent preservation services are intended to protect the scholarly record over substantially longer periods and across changes in technology or organizational circumstances.

ETII therefore does not treat ordinary web-server backups as a substitute for formal preservation arrangements.

13. Temporary Website or Server Failure

Temporary unavailability of the ETII website does not eliminate the independent preserved copies maintained through the journal's preservation arrangements.

The journal's operational systems and preservation services provide separate layers of resilience designed to support recovery and continuity.

14. Journal Cessation or Publisher Discontinuation

Preservation arrangements are intended to protect access to scholarly content even if ETII later ceases publication or the original publisher or publishing platform is no longer able to make the content available.

In such circumstances, preserved content remains subject to the policies, technical mechanisms, and access arrangements of the relevant preservation service.

15. Access through Portico

Portico is designed to preserve electronic scholarly resources independently from the publisher's primary delivery platform.

Access to content preserved in Portico is governed by Portico's preservation and access arrangements, including circumstances in which preserved material may need to provide continuing access when original content is no longer available through normal publisher channels.

16. Access through PKP PN

PKP PN preservation is intended to protect journal content independently of the primary OJS installation.

Preservation and any subsequent availability of deposited content are governed by the PKP Preservation Network's technical infrastructure and applicable participation terms.

17. Author Self-Archiving

Independent journal preservation is complemented by ETII's open-access and author self-archiving policies.

Authors may deposit permitted versions of their work in institutional repositories, disciplinary repositories, personal academic webpages, and other legitimate scholarly repositories in accordance with the journal's Open Access & Copyright Policy.

Distributed author and institutional deposits provide an additional layer of scholarly accessibility but are not treated as a substitute for journal-level preservation.

18. Open Access and Preservation

ETII publishes articles on an open-access basis under the journal's applicable licensing arrangements.

Open access provides immediate reader access, while digital preservation addresses the separate question of whether the scholarly object can remain accessible and authentic over the long term.

ETII therefore treats open access and long-term preservation as complementary but distinct responsibilities.

19. Monitoring Preservation Status

The journal and publisher may periodically monitor the operation and status of preservation arrangements to identify deposit failures, incomplete records, configuration problems, or other issues that could affect long-term preservation.

Where a technical problem is identified, reasonable efforts should be made to restore successful deposit or preservation processing.

20. Updates to Preserved Content

When published content or metadata is formally updated, ETII seeks to ensure that the preservation record reflects relevant changes where supported by the applicable preservation service.

Such updates may include corrected metadata, revised publication files, corrections, retraction notices, or other formal changes to the scholarly record.

21. Authenticity and Integrity

Preservation is intended not merely to retain files but to maintain confidence that preserved scholarly objects correspond to authentic publication records.

ETII therefore seeks preservation mechanisms that maintain relevant content, metadata, identifiers, and publication relationships in a manner suitable for future retrieval and verification.

22. Removal of Published Content

ETII normally preserves the scholarly record even when an article is subsequently corrected or retracted.

Complete removal of published content is expected to be exceptional and may be considered only where compelling legal, privacy, security, safety, or other serious circumstances require removal.

Preservation-system records may remain subject to the policies and technical requirements of the relevant preservation service.

23. Responsibilities of the Journal and Publisher

ETII and its publisher are responsible for maintaining reasonable procedures to support ongoing preservation of published content.

Relevant responsibilities include:

• maintaining appropriate preservation-service participation;
• supporting correct OJS preservation configuration;
• maintaining accurate journal and publication metadata;
• monitoring preservation deposits where appropriate;
• responding to technical preservation failures;
• maintaining valid publication identifiers;
• providing updated files or metadata where required; and
• reviewing preservation arrangements as technologies and publishing practices evolve.

24. Preservation and Indexing Are Distinct

Digital preservation should not be confused with journal indexing.

Indexing services primarily support discovery, bibliographic searching, citation analysis, or research evaluation. Preservation services are designed to maintain scholarly content for long-term continuity and recovery.

Inclusion in an indexing database is therefore not treated by ETII as a substitute for formal digital preservation.

25. Review of Preservation Arrangements

ETII may periodically review its preservation arrangements in response to:

• changes in OJS;
• changes in PKP PN;
• changes in Portico services;
• new digital preservation standards;
• changes in file formats or publishing technology;
• publisher infrastructure changes; or
• new requirements from libraries, funders, or scholarly infrastructure.

Additional preservation mechanisms may be adopted in the future where they provide meaningful additional protection for the scholarly record.

Digital Preservation at a Glance