The expansion directions in the AKF expansion cube and their corresponding focus points are: X- axis expansion focuses on the division of responsibilities in the application, such as data types and…

The expansion directions in the AKF expansion cube and their corresponding focus points are: X- axis expansion focuses on the division of responsibilities in the application, such as data types and transaction execution types; Y-axis expansion focuses on vertical data and service cloning, that is, "adding machines to solve problems"; Z-axis expansion focuses on the priority division of services and data, such as regional division.