What is a core system?

In computer science, a core system refers to the central or foundational components of a larger system, application, or infrastructure. It encompasses the essential elements that provide the primary functionality, data processing, or decision-making capabilities.

The core system is typically responsible for executing the main business logic, managing critical resources, or controlling the data flow within the system. It might involve databases, algorithms, networks, or other vital components that enable the system to operate as intended.

In software development, the core system can be seen as the heart of the application, encompassing the key features, data models, and business rules that define the system's behavior.

For instance, in an e-commerce platform, the core system might include the inventory management, payment processing, and order fulfillment components. In a banking system, the core system would comprise the transaction processing, account management, and security modules.