Final answer:
An application server contains the business rules or procedures, playing a vital role in the decision-making processes supported by software systems in complex automated systems.
Step-by-step explanation:
The application server often contains the business rules or procedures that dictate how data can be created, stored, and changed. It is a crucial component in complex automated systems and facilitates the decision-making processes of workers by providing a software system that supports their operations. The application server typically interacts with the underlying database systems to manage query processing, transaction management, and application logic – all integral parts of human software interactions.