How are "Global Variables" used in AVEVA Application Server?

Global Variables in AVEVA Application Server serve the primary function of allowing access to shared values across multiple components within the application. This capability is essential when different parts of a system need to interact or share data seamlessly. For instance, if several components require the same configuration or state information, Global Variables provide a centralized means to access this data, ensuring consistency and reducing redundancy.

By using Global Variables, changes to a value can be reflected instantaneously across all components that reference it. This is crucial for maintaining synchronized states, particularly in complex applications where multiple elements may depend on a single piece of data. It simplifies data management and helps maintain the integrity and performance of the application since there's no need for each component to manage its own separate instance of shared data.

In contrast, storing application backups, tracking data integrity issues, or designing user interfaces do not align with the purpose of Global Variables, which specifically cater to shared data access and manipulation between different parts of the application.