The Client-server model is a fundamental principle of communication in computer networks and describes the interaction between programs or systems that exchange data and services. In this context, the Server the role of the central service provider, while one or more Clients access these services and initiate data exchange.
The server provides data, functions, or resources and waits for requests from clients. Clients send specific requests to the server, for example, to retrieve measurement values, configuration data, or system information. After processing the request, the server returns the requested information. Communication thus takes place in both directions but is controlled by the client.
A key advantage of the client-server model is that a single server can serve multiple clients simultaneously. This allows different users, applications, or systems to access the same data sets in parallel. While clients typically operate on a user-specific basis and have individual access rights, servers are administered and managed centrally.
In measurement and automation technology, the client-server model forms the basis for numerous communication and data acquisition solutions. Visualization software, analysis tools, databases, and control systems often function as clients and access measurement data provided by central servers. This enables process data to be collected, evaluated, and documented across multiple locations.
Modern Delphin measurement data acquisition systems also use the client-server principle to efficiently provide measurement values, process data, and system information. Multiple users can simultaneously access the same data, monitor measurements, or perform analyses without affecting the actual data acquisition process. This enables flexible integration into existing automation and IT infrastructures.
By clearly separating data provision from data usage, the client-server model offers high scalability, centralized management, and efficient use of resources. It is therefore one of the most important architectural concepts in modern measurement, automation, and information systems.