Welcome to virtual earth GmbH - your partner for integrated knowledge management

In today's fast-paced business world, managing knowledge is not just a matter of storing information, but a strategic necessity that determines the success of your business. Virtual earth GmbH is at the forefront of this development, offering holistic solutions that seamlessly integrate your organizational and technical knowledge management.

Complex relations in RDF

The simple subject-predicate-object data model of RDF tempts us to treat relationships and verbs as simple predicates or properties/properties.

However, this often does not do justice to reality.

For example, if we are collecting data on employment relationships or project contractors, a first approach might be:

My modeling guidelines

A customer's question gave me the idea of writing down the influences on my modeling strategies and my own attitudes and guidelines.

These are my rules based on my current experience at the end of 2023. They are not universally valid but document the status of my development.

Explaining OWL: use 'set' for 'class', it's more precise and less likely to be confused with OO classes

Today I listened to the workshop "Democratize the Knowledge Graph and Concrete Tooling Requirements" by Adam Keresztes at the 2023 Knowledge Graph Conference in NYC.

Different people there emphasized the difficulty of explaining the difference between classes and instances to non-ontologists.

Which had me reflecting on how I work with this terminology, and I found that I tend to use 'set' instead of 'class'.

Investment protection: an important advantage of RDF and SPARQL

A current customer project has once again shown me two important advantages of the W3C standards around semantic technologies and graph data:

  • Stability, in the sense of portability of data and queries
  • Choice of products between which I can exchange my data and queries
  • And thus an investment protection that proprietary graph databases do not offer

tl;dr

Why RDF? Because it protects your investment!

Partner

Our company is proud to have a diverse and talented team of partners, each with their own areas of expertise and specialization.

Axel Timo Purr is team lead, project manager, writer, journalist, and film critic with a specialization in African culture and politics, as well as children's and youth cinema.

Markus Graf is a security specialist and software developer with a focus on the HR field. He is knowledgeable in HR processes, graph databases, and Clojure, and has a strong understanding of internet security.

Dennis Wehrmann is a designer with expertise in visual communication and branding.

Markus Anderwald is also a designer with a focus on user experience and interface design.

Together, our partners bring a wealth of knowledge and experience to our company, and we are grateful to have them as part of our team.
 

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