Digital Heritage · Polder Knowledge

Digital heritage platforms that connect collections, knowledge and stories.

Heritage lives in collections, stories and the people who pass it on. We help museums and heritage organisations connect these worlds digitally and make them accessible. Through intuitive public platforms, smart integrations and interactive experiences, we bring heritage closer to people.

From source
to experience.
  1. SourcesObjects, stories, archives and living traditions
  2. StructureMetadata, collection management, taxonomy and validation
  3. EnrichmentContext, integrations, Linked Open Data and NDE principles
  4. PlatformWebsites, maps, trails and interactive applications
  5. ExperienceDiscover, understand, experience and share

Projects in practice

Connecting heritage. Bringing it to life.

From museum collections and local stories to public platforms, interactive trails and AI museum guides. A selection of our work.

Project image of the interactive Huis van Verhalen for ROSE Stories

Interactive storytelling

ROSE Stories, Huis van Verhalen

For ROSE Stories, we are developing a playful world of stories in which visitors explore objects from cellar to attic, each with its own story. We are creating an imaginative, exploratory user experience in collaboration with the designers at ROSE Stories.

Discuss interactive storytelling
Het Weeshuis van de Kunst route planner with personalised walking route, map and GPX export

Interactive routes

Het Weeshuis van de Kunst

For Het Weeshuis van de Kunst, we are developing a platform that lets visitors create their own walking or cycling routes past art, places and stories. It includes an interactive map, an adjustable stop order and GPX downloads.

Discuss a route platform
Netwerk Levend Erfgoed website listing intangible heritage initiatives with filters

Registration & validation

Netwerk Levend Erfgoed

A registration and validation application for living heritage initiatives. Its user experience and technical design support recording, structuring and sharing heritage information.

Explore the network
Vincent. Eén en al oor. mobile app with chat, Van Gogh artworks and locations

AI & historical sources

Vincent. Eén en al oor.

A conversation with Vincent van Gogh grounded in his letters. The digital conversational companion can reference original letters and show artworks. The experience has been tested at the Van Gogh Village Museum and Museum Dordrecht.

Meet Vincent
AI museum guide concept for Thyssen-Bornemisza with chat and personalised art route on two smartphones

AI & museum experiences

Museo Nacional Thyssen-Bornemisza

A chatbot proof of concept centred on Giovanna degli Albizzi Tornabuoni. Visitors describe how they feel and receive a suggested museum route featuring artworks that match that emotion.

Discuss an AI museum guide
Brabant Herinnert digital project presentation with personal wartime stories and an interactive map

Digital heritage stories

Brabant Herinnert

Brabant Herinnert shares 75 personal, life-changing wartime stories from Brabant in a creative and compelling way. Its digital storytelling environment brings history closer to the public.

Explore Brabant Herinnert

From fragmentation to connection

Connecting heritage takes more than digitisation.

A collection management system, a digital archive, a website full of stories: each often contains just one part of the bigger picture. But how do you connect objects, people and places? How do you make information accessible to visitors and researchers, even beyond your own organisation?

This calls for intuitive design, smart integrations and a future-proof technical foundation. Systems that work together, open standards and room for new ways to explore.

This is where our creative and technical expertise comes together.

From disconnected systems to new possibilities Information becomes more valuable when you can connect it.
CollectionMetadataStoriesExperience

Our solutions

From technical infrastructure to public engagement.

We can help with the entire challenge or tackle one specific technical issue.

01 / PLATFORMS

Digital public platforms

From collections to discovery. We design and build websites and platforms where visitors explore heritage through objects, themes, interactive maps and stories. From concept and UX design to development and ongoing improvement.

Explore applications
02 / INTEGRATIONS

Collection access & API integrations

We connect collection management systems, metadata and external sources through custom API integrations. This makes information useful for websites, search experiences and other digital services instead of leaving it locked in separate systems.

Discuss an integration
03 / OPEN STANDARDS

NDE & Linked Open Data

Making heritage findable, connected and reusable in line with the principles of the Dutch Digital Heritage Network (NDE). We advise on and implement information models, persistent identifiers, controlled vocabularies, JSON-LD and Linked Open Data.

Explore NDE compatibility
04 / EXPERIENCE

AI & interactive storytelling

New ways to experience heritage, from conversations with historical figures to discovering stories on location. Always with attention to sources, factual reliability and user experience. We use AI where it genuinely adds value.

Discover Vincent

Our approach

From collection management and living heritage to public experiences.

For museums, digitisation is about more than objects and metadata. It is also about the stories behind them and, in living heritage, the people and communities who pass on traditions and knowledge. Together with collection managers, heritage professionals and volunteers, we explore the sources, systems and audiences. Only then do we choose a suitable digital approach.

01 / Explore

Understanding collections and stories

Together with collection managers, heritage practitioners and other stakeholders, we investigate sources, metadata, existing systems and the needs of visitors and researchers.

02 / Design

Discovering and experiencing

We design ways for people to discover objects, places, practices and stories. Where useful, we test a prototype with the people the platform is meant for.

03 / Connect

Opening up and developing

We build the public platform and connect existing collection and registration systems wherever possible. We consider accessibility, NDE principles and Linked Open Data where relevant.

04 / Sustain

Maintaining and evolving

We make sure editors and heritage organisations can continue to add and manage content and that the digital experience remains useful in the long term.

Why Polder Knowledge?

Technically strong. Creative in our solutions. Personal in our approach.

We combine experience in complex software and integrations with expertise in digital heritage and open standards. You work directly with senior specialists who challenge assumptions, respond quickly and genuinely care about the work. No more technology than necessary, but a solution that can grow.

Experience in NDE, Linked Open Data and collection access
From concept and UX to architecture and development
Direct contact with the experts doing the work
Pragmatic, sceptical of AI hype and committed to long-term collaboration

Knowledge & insights

More on connected heritage.

Open standards and semantic data exchange are not ends in themselves. They make information more useful, now and in the future.

Working in line with NDE principles

How can you make collection information part of the national digital heritage infrastructure? From standards and identifiers to practical implementation steps.

Explore NDE

Linked Open Data

How can you make heritage information machine-readable and connect it to other knowledge sources? An introduction to JSON-LD, semantic relationships and choosing a publishing strategy.

Explore Linked Open Data

Frequently asked questions

Practical questions. Clear answers.

Do we need to replace our collection management system?

Usually not. We first examine what the system can already do, what information is available and how it can be made accessible through APIs or standardised exports. Sometimes an integration or an additional public platform is enough.

Can you help us specifically with NDE or Linked Open Data?

Yes. Alongside complete public platforms, we provide advice, architecture and technical implementation around NDE principles, metadata, identifiers, controlled vocabularies and Linked Open Data.

Can we start with a focused exploration or prototype?

Absolutely. A focused technical exploration or proof of concept helps test assumptions, identify risks and make an informed decision about further development.

Can you bring together collection data from multiple systems?

Yes. We examine which data sources are available and how they can be accessed through existing APIs, exports or custom integrations. We also look at metadata quality, identifiers and how objects, people, places and stories relate to one another.

Let's connect

What could you make possible with your heritage?

Make a collection easier to access, connect systems or create a new digital visitor experience? We would be glad to explore the possibilities with you, from initial discovery to technical development and ongoing improvement.