Radio Frequency Identification

A wireless method that operates without direct contact and transmits merchandise data over a specific distance using radio, inductive, or resonance coupling is referred to as an RFID (Radio Frequency Identification) system. It consists of a data carrier, also known as an RFID tag, an antenna, and an RFID reader. external-link


The term "rating" is used in telecommunications and refers to the determination of the price for a utilized service as part of the billing process. external-link

RDF Schema

A data-modeling vocabulary for RDF data that extends the basic RDF vocabulary. external-link

Real Data

Real data refers to information that exists in the physical world and can be found. This includes things like customer transactions, social media posts, and internet traffic. On the other hand, synthetic data is computer-generated data that aims to simulate what would exist in the real world. The advantage of synthetic data is that it is easier to control compared to using actual information from the real world. external-link

Real-time behavior

The term "real-time behavior" refers to the requirement that a system must be able to calculate a certain result within a predefined time interval. It is often also associated with an extremely short reaction or control time without delay. external-link

Real-time Intelligence

The term describes the continuous real-time animation or visual analysis of streaming data. Typically, a temporal window is extracted from the data stream and presented graphically. external-link

Real-time traffic information

Aggregated real-time data from diverse transportation modes, including public transport and private vehicles, is utilized to present travelers with comprehensive options encompassing travel times, expenses, and alternative routes. Simultaneously, freight coordinators receive valuable insights into transport duration and alternate corridors. This wealth of information forms the basis for a wide range of applications that foster the optimal and economical utilization of transportation infrastructure, enhance traffic flow, enable efficient logistics management, and facilitate streamlined travel planning. external-link


Adjustments or modifications may be made to the production system during production in response to new requirements.

Catena-X Automotive Network e.V.

Redundancy concept

Data redundancy is the practice of storing data in multiple locations within a database or data storage system. It ensures that an organization can maintain uninterrupted operations or services in case of data corruption or loss. This concept is relevant to databases, computer memory, and file storage systems. external-link

Reference Data

Reference data is a specific subset of master data that is used throughout the entire organization for classification purposes. In data management, it is used to define the properties of an identifier. external-link

Regional marketplace in the energy market

The regional energy marketplace provides a platform for all stakeholders and energy facilities. It enables efficient economic distribution of generation, consumption, storage and energy transport at the local level. external-link

Relational Database

A relational database (RDB) consists of a collection of multiple datasets organized into tables, records, and columns. It establishes a structured connection between these database tables. The tables collaborate and exchange information, enabling efficient data retrieval, organization, and reporting. RDBs utilize Structured Query Language (SQL), a widely adopted programming interface that simplifies database interaction for users. external-link

Relational Database Management System

The relational database management system (RDBMS) is the software utilized to store, manage, query, and retrieve data within a relational database. It serves as an intermediary between users, applications, and the database itself, offering administrative functionalities for data storage, access, and performance management. external-link

relational OLAP

There are different techniques available for storing multidimensional data structures based on the concept of the OLAP cube (Online Analytical Processing): Multidimensional OLAP (MOLAP), Desktop OLAP (DOLAP), Relational OLAP (ROLAP), and Hybrid OLAP (HOLAP). In the ROLAP approach, which is the relational OLAP, the data is stored completely on the database server. external-link

Replica Set

A Replica Set is responsible for ensuring that a specific number of replica Pods are always running in a Kubernetes cluster. Other workload objects, such as Deployments, utilize ReplicaSets to maintain the desired number of Pods according to the ReplicaSet's configuration specifications. external-link


A ReplicationController is a workload resource that oversees a replicated application and guarantees that a certain number of Pod instances are continuously running. The Kubernetes control plane monitors and manages the desired number of Pods, even in situations where some Pods fail, or when Pods are deleted manually or inadvertently started in excess. Note that ReplicationController is now considered deprecated and replaced by the Deployment object, which provides similar functionality. external-link


Reports are structured (detailed) reports that provide an analytical presentation, typically in the form of tables and a combination of tabular and graphical elements with text blocks. In traditional usage, these are often printed or distributed internally via email attachments. Structured data is typically used as the data source, which is summarized and can be visualized, for example, as a dashboard. Reports are used on an ad hoc or regular basis, either periodically or based on specific requirements. This category is not new and has effectively established the market for business intelligence. external-link


A repository is a central storage location where software products (e.g., learning software objects) and their conception and development are managed. It allows multiple authors and users to contribute and collaborate on their content. Repositories are used for various purposes, including version control, such as in CVS. The content is labeled using metadata. external-link

Request for Information

An inquiry to obtain basic information about a product. Primarily serves the purpose of market exploration. The received offers are non-binding. external-link

Request for Proposal

A form of procurement invitation where a company or organization publicly declares the availability of funds for a specific project or program, and companies can submit bids to undertake the project. The Request for Proposal (RFP) delineates the bidding procedure, contractual conditions, and instructions on the bid's structure and presentation. An RFP generally welcomes bids from a diverse pool of participants, fostering open competition among companies seeking opportunities. external-link

Réseaux IP Européens Network Coordination Centre

Ripe NCC is one of the five Regional Internet Registries (RIR) and is responsible as an organization for the allocation of IP addresses in Europe, the Middle East, and Central Asia. external-link


The concept of data resilience encompasses various aspects, including ensuring the continuous availability of production data hosted on data infrastructure, mitigating unexpected disruptions, and implementing effective governance, operational, and technical measures to safeguard data integrity. external-link

Resilient Distributed Dataset

An abstract distributed memory model that enables programmers to perform in-memory computations on extensive clusters while maintaining fault tolerance. RDDs address the inefficiencies of current computing frameworks when dealing with iterative algorithms and interactive data mining tools. By keeping data in memory, RDDs significantly enhance performance. To ensure efficient fault tolerance, RDDs utilize a restricted form of shared memory that relies on coarse-grained transformations rather than fine-grained updates to shared state. external-link


A Resource is an internal component that cannot be directly ordered, but is used to construct Service Offerings. Unlike an Asset, it has endpoints. Key attributes of a Resource include its physical location, Autonomous System Number, network segment, and jurisdiction affiliations. external-link

Resource Description Framework (RDF)

RDF, which stands for Resource Description Framework, is a widely used standard model for data exchange on the Web. One of the key features of RDF is its ability to merge data from different sources, even when the underlying schemas differ. Additionally, RDF is designed to allow for the evolution of schemas over time without requiring updates to all data consumers. external-link


In general, this term refers to the goods and objects within the Gaia-X Ecosystem. See also the term "Resource". external-link


A Representational State Transfer (REST) or RESTful API is an Application Programming Interface (API) that enables web-based applications to communicate with each other. Although this API is theoretically compatible with various protocols and data formats, REST often relies on the HTTP protocol and transfers data using JSON (JavaScript Object Notation). The REST API is highly favored due to its versatility, swiftness, and user-friendly nature, establishing it as one of the most sought-after approaches for data retrieval from the internet. external-link

Return of Investment

A business metric that represents the relationship between profit and invested capital. external-link


A code reviewer is an individual who examines a specific portion of a project's codebase for accuracy and quality. Reviewers possess expertise in both the software engineering principles and the codebase itself. The reviewer status is typically limited to a particular segment of the codebase. external-link

Rule Management

Business rules management (BRM) refers to the management and automation of business rules with the aim of enhancing organizational agility and responsiveness. BRM achieves this goal by automating decision-making processes, thus increasing the efficiency of business operations. By doing so, it reduces the reliance on IT departments to make changes to business logic. BRM also accelerates business process management (BPM) and service-oriented architecture (SOA) initiatives, while simultaneously improving decision management and dynamic case management efforts. external-link