Learn how digital preservation and digital access serve different purposes, how they work together, and where they fit within the wider digital collections ecosystem.

What is the difference between digital preservation and digital access? Digital preservation protects the authenticity, integrity and usability of digital material over time. Digital access makes that material searchable, discoverable and usable by people today.

The terms are sometimes used interchangeably, but the distinction matters when libraries, archives and cultural heritage organisations select systems, define workflows and plan sustainable digitisation programmes.

What is digital preservation?

Digital preservation is the process of protecting the authenticity, integrity and usability of digital material over time. The focus is longevity, with timelines often measured in decades.

Within the library and cultural heritage community, this work is commonly described using the Open Archival Information System (OAIS) model (also known as ISO 14721:2025), which outlines the functions needed to preserve digital materials over the long term.

Preservation activities typically include:

• Maintaining high-quality archival master files.

• Protecting against data loss, corruption, or bit-rot (the gradual decay of digital data).

• Tracking integrity and changes over time.

Some preservation platforms place significant emphasis on mitigating long-term file format changes and hypothetical future risks. While these considerations are valid, many organisations take a more pragmatic approach — focusing first on robust storage, fixity, redundancy, and documentation, while planning to address format migration if and when it becomes necessary.

What is digital access?

Digital access is the process of making digital material searchable, discoverable and usable by its intended audience. Timelines are more immediate, as it focuses on how people find, search, view, navigate and interact with collection content.

Access activities typically include:

• Full-text search and browsing.

• User-friendly interfaces.

• Mobile access

• Accessibility 

• Performance, uptime and scalability.

Do digital preservation and access require different systems?

Preservation and access place different demands on technology. Preservation systems favour controlled, stable environments designed to protect files and document their integrity. Access systems require regular indexing, interface updates and performance optimisation so users can search and interact with content efficiently.

When preservation and access goals become blurred, organisations can run into problems, such as:

• Fragmented workflows between preservation and access teams.

• Difficulty adapting systems as technologies and standards evolve.

• Reduced usability or performance for end users.

Fully implementing digital preservation typically requires a combination of dedicated systems, workflows, and organisational commitment.  While some platforms attempt to address both preservation and access, delivering both equally well (especially at scale) usually requires specialised systems working together.

How do digital preservation and digital access work together?

While they serve different purposes, preservation and access are closely connected.

Key elements that support both include:

• Well-structured metadata (e.g. descriptive, structural, and administrative metadata).

• Reliable identifiers that link access copies back to the original source material.

• Standardised file formats that remain readable over time.

• Well-defined relationships between the original source files, access versions, and metadata.

As digitised materials are accessed and used — often through access platforms tailored to specific content types — issues such as broken file relationships, metadata gaps, or inconsistencies can emerge. This helps strengthen preservation efforts by enabling these problems to be identified and corrected at the source over time.

What makes balancing preservation and access difficult?

Libraries and archives commonly face practical constraints when developing preservation and access environments::

• Budget constraints: preservation and access often require different infrastructure and expertise.

• Technological change: File formats, storage media, and software don’t stand still.

• Data integrity and authenticity: Ensuring files remain complete and well documented.

• Scalability: Collections grow over time through new content, rescans and richer metadata.

• Content diversity: Supporting many different material types (e.g. books, newspapers, audio, video, manuscripts) introduces additional complexity in how content is described, managed, and presented to users.

Is Veridian a digital access or preservation platform?

Veridian is primarily a digital access and discovery platform, not a complete OAIS-compliant digital preservation system. Some platforms support both preservation and access to varying degrees. In practice, however, systems optimised for long-term preservation are rarely also optimised for high-volume, high-performance public access, particularly for complex, large-scale collections such as digitised newspapers.

Veridian is therefore designed to complement an organisation’s preservation infrastructure by making digitised newspapers and other historical materials searchable, discoverable and accessible online. It also incorporates best-practice features that support preservation efforts. For example, as part of our backup and data-handling processes, we use BagIt for fixity verification to detect file corruption and confirm data integrity over time.

Our team has experience working with specialist preservation services such as MetaArchive and Amazon Web Services Glacier. This enables us to offer practical guidance to organisations considering how access and preservation systems can work together within a broader, standards-based framework.

Planning how preservation and access fit together
for your digital collections?