Radio Access Network

Wireless access networks enable the wireless connection between mobile devices and the core network. A radio access network (RAN) consists of radio base stations that establish the wireless connections to the mobile devices, as well as radio network controllers (RNCs) that establish a connection to the mobile switching centers (MSCs) in the core network. external-link

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

Raspberry PI

A Raspberry Pi is a single-board computer that is roughly the size of a credit card and is designed as a do-it-yourself (DIY) computer platform for beginners and enthusiasts in the maker scene. The hardware is compatible with Linux operating systems and can be easily programmed using Python. Due to the sale of over 3 million Raspberry Pis, there is a large community of supporters who have developed countless examples of solutions and published them on the internet. 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

RBAC (Role-Based Access Control)

The authorization decisions are handled by a system that enables administrators to configure access policies in real-time via the Kubernetes API. This system uses Role-Based Access Control (RBAC), which consists of roles defining permission rules and role bindings that grant those permissions to specific users or groups. 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 SLA

Describes the ability to monitor and adjust Service Level Agreements (SLAs) in real-time. 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

Really Simple Syndication

The acronym RSS stands for "Really Simple Syndication." It provides a convenient method to disseminate a collection of headlines, update notifications, and occasionally content to a broad audience. Computer programs utilize RSS to organize and present these headlines and notifications in a user-friendly format for effortless reading. external-link

Recommendation Engine

A recommendation engine is a data filtering tool that employs machine learning algorithms to suggest the most suitable items to a specific user or customer. It functions by identifying patterns in consumer behavior data, which can be gathered either implicitly or explicitly. 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

Relationship Manager

A DSSC representative assigned as the primary contact for a specific data space initiative or community member. external-link

Remote Management Control Protocol

The Remote Management Control Protocol (RMCP) is used in the Intelligent Platform Management Interface (IPMI) for communication between two Baseboard Management Controllers (BMC) or over the buses and LANs. The data of RMCP is transmitted as datagrams using the User Datagram Protocol (UDP), which is also referred to as IPMI over LAN. The IP addresses are determined by IPMI. external-link

Remote monitoring

Remote wireless monitoring of objects or individuals is carried out through the use of advanced transmission technologies. external-link

Renewable energies

Alternative energy refers to forms of energy that are available to humans and originate from sources considered to be practically unlimited. These energy sources are harnessed by extracting usable forces from naturally occurring processes. external-link

Renewable Energy Sources Act

The Renewable Energy Sources Act (EEG) was implemented in 2000. The main objective of the EEG was to facilitate the market entry of emerging technologies such as wind and solar energy. This was achieved through fixed feed-in tariffs, guaranteed off-take, and preferential grid access for the generated electricity. In 2014, the law was revised to reduce the increase in energy costs. 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

Represental State Transfer

REST is an architectural style for web applications that is independent of specific data formats. REST is based on the four HTTP methods: GET, POST, UPDATE, and DELETE. In addition to using HTTP, REST can also be used with CoAP (Constraint Application Protocol), enabling the direct integration of embedded systems with limited resources into REST-based applications. In the realm of the Internet of Things, REST is used to implement platform-independent Application Programming Interfaces (APIs). external-link