API (Application Programming Interface)
A standarised set of rules and protocols that enable communication between different software systems, allowing secure and interoperable data exchange.

Building Block
Reusable modular component that is part of a larger architectural system, allowing the development and interoperability across different ecosystems.

Catalog
Repository where resources, such as data and services, are published and described, allowing other participants to discover and use them.

Consent
A valid and explicit authorization granted by the owner to use their data under specific conditions.

Consent Service
A system component in charge of managing, registering and verifying consents granted by users for data processing activities.

Contract
Formal agreement that defines the terms, conditions, and obligations between the involved parties in data or service exchange.

Contract Service
Service that creates, manages and validates agreements, defining data usage conditions and services.

Control Plane
Part of the dataspace architecture responsible for system management, configuration and coordination, without handling direct data processing.

Credentials
Information or certifications used to authenticate and authorize an entity or participant within a dataspace.

Data Consumer
Entity that accesses and uses data provided by others within an ecosystem.

Data Ecosystem
Set of actors, technologies and processes that interact to share, process and manage data.Data PlanePart of the ecosystem where the real exchange takes place.

Data Provider
Entity that makes data available to others inside the ecosystem.

Data Space
Federated environment where multiple organizations exchange data under sharedgovernance, security and sovereignty frameworks.

Data Sovereignty
Capacity of a data owner to control how the data is used, shared and governed.

Prometheus X-Dataspace Connector
Technical component that enables organizations to connect to a data space, managing data, policies and security.

DCAT (Data Catalog Vocabulary) v3
World Wide Web Consortium standard used to describe datasets in web catalogs, facilitating their discovery, interoperability and reuse of metadata.

Decentralization
Model in which decision-making and control are distributed among multiple entities, instead of relying on a single central authority.

EDGE-Skills
Concept related to skills’ acquisition in decentralized or edge-computing environments, where data is processed close to its source.

Federated Architecture
Model in which multiple independent systems cooperate and share data under common rules but maintaining their autonomy

General Data Protection
Regulation (GDPR)European Union regulation that protects privacy and personal data of EuropeanUnion citizens.

Identity
Set of attributes and credentials that describe an individual, organisation or system in a digital environment.

Interoperability
Ability of different ecosystems or platforms to exchange information and use it effectively.

Multipurpose Internet Mail Extensions (MIME)Types
Standard format that indicates a file’s content type (e.g application/json, text/html)allowing systems to process it correctly.

Open Digital Rights Language (ODRL)
World Wide Web Consortium standard language used to express usage policies, permissions and restrictions for digital resources.

Open Digital Rights Language (ODRL) Manager
Component or system that manages, interprets and applies ODRL policies.

Personal Data Intermediary
Entity or platform that manages the personal data exchange between users and organizations, ensuring control, consent and regulatory compliance.

Policy Enforcement Point (PEP)
Component that applies access decisions or data usage policies based on predefined rules.

Protocol
Set of rules that define how systems or devices communicate within a network.

Resource
Any digitally accessible entity (data, services, files, APIs, etc..)

Resource Representation
Format in which a resource is presented or encoded (e.g. JSON, XML, PDF)

Service Provider
Entity that offers digital services, such as storage, processing or data access

Service Chain
Sequence of interconnected services that work together to perform a function or complete a process.

Smart Contract
Self-executing program (typically on a blockchain) that enforces agreements automatically when predefined conditions are met.

Trust Platform
Infrastructure that ensures security, identity, compliance and reliability in digital interactions.

Use Case Contract
Formal definition of rules, conditions and expectations for a specific use case withina system or ecosystem.

Data Value Chain Tracker (DVCT)
Mechanism that tracks and represents value or transactions within a data value chain.

PTX Token
Digital token used in a specific ecosystem (often blockchain-based) to represent value, access or incentives.

Transparency
Principle that guarantees process, decisions and use cases that are visible, auditable and understandable.