Catalogue Server

Overview

The Catalogue Server is a core component of the IUDX-Novo Central Directory Services. It implements the Discovery (D) interface and provides resource discovery and search capabilities for users of the IUDX platform.

The Catalogue Server acts as the metadata registry of the platform, enabling Data Providers to publish resource descriptions and Data Consumers to discover relevant data sources in a standardized and interoperable manner.

Metadata Management

The Catalogue Server stores resource metadata using linked data representations in the form of JSON-LD objects.

It exposes APIs that allow authorized users to:

• Create new metadata entries for resources

• Update existing resource metadata

• Delete or deprecate metadata entries

This linked-data-based approach enables semantic interoperability and supports integration with other standards-compliant data ecosystems.

Discovery and Search Capabilities

The Catalogue Server provides advanced discovery and search functionality to help users efficiently locate relevant data resources.

Supported search capabilities include:

• Geospatial search based on location and spatial boundaries

• Attribute-based filtering on metadata fields

• Text-based search using keywords and free-text queries

These capabilities enable both human users and automated systems to explore the available datasets and services across the IUDX platform.

Role in the Platform

• Serves as the primary entry point for data discovery

• Enables standards-aligned metadata publication

• Supports interoperable and scalable resource search

• Integrates seamlessly with authorization and consent workflows

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