Final answer:
The data management function in the AIS focuses on master files, transaction files, and junction files.
Step-by-step explanation:
The generic element of the AIS that focuses on master files, transaction files, and junction files is the data management function.
Master files contain detailed information about entities such as customers, products, or employees. Transaction files record the specific information about each business transaction, while junction files help establish relationships between different data elements.
For example, in a retail business, the master file may contain customer names and contact information, the transaction file would have the details of each sale, and the junction file would link the customer information with their respective purchases.