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The MediationLayer provides community-agnostic functionality for creating high-quality data products. It includes tools for managing metadata, transforming data from a technical data model into a semantic model, and improving data quality.

Zooming into the Mediation Layer

Semantic Web

Our goal is to build services based on well-established, internationally agreed semantic standards spaning both data and metadata. More and more metadata standards are being offered in a Semantic Web compliant format as ontologies. We identified an initial subset of semantic core models, namely: Schema.org and ABCD3. We stored and published their corresponding ontologies on BiodivPortal, our terminology repository and service. Additional standards for data are being collected and similarly stored, like for instance the Ecological Trait-data Standard (ETS).

(Meta)data Transformation

The mediation layer provides a set of transformation services and tools for data and metada. In order to meet wider user needs, we developed the data collection service, that supports the conversion and storage of datasets into JSON, an easy-to-consume format. We are developing a tranformation pipeline for source metadata schemas and data formats into a semantic format based on the identified core models and data standards.

Our Goals

• • Translation of the physical data model into domain models and vice versa
  • Support of common metadata standards

Example Components

Perspectives

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Data Integration

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Curation and Harmonisation

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