SAP GUI ALV Grid Component
A Global ABAP Class is a reusable object-oriented programming unit defined in the ABAP Development Tools (ADT) that is stored in the ABAP repository and can be accessed across multiple programs and packages. Developers use it to encapsulate methods, attributes, and logic that can be instantiated or called from anywhere within the system. It is created and maintained using the Class Builder or ADT, and serves as a foundational building block for modular, maintainable ABAP applications.