What is the primary function of AWS Step Functions?

The primary function of AWS Step Functions is to model workflows as state machines. This service enables users to coordinate multiple AWS services into serverless workflows, allowing for the construction of complex processes and sequences. By using state machines, developers can visualize and manage the flow of execution through a series of steps, handle branching logic, and incorporate error handling.

This functionality is particularly useful for orchestrating microservices, enabling tasks to run in parallel or in sequence based on defined states. It allows for greater control and visibility over process execution, ensuring that different components of an application can interact in a streamlined and organized manner. This orchestration of complex workflows is essential for building scalable and maintainable applications in the cloud.