Which of the following best describes a 'Process Instance' in Appian?

A 'Process Instance' in Appian is defined as a single execution of a process model. When a process model is designed and activated, each time it is triggered, it produces a unique instance that carries out its predefined steps independently. This means that no matter how many times the same model is initiated, each instance will maintain its own state, data, and progress, allowing multiple instances of the same process to run concurrently without interference.

For example, if a process model is designed for handling a client onboarding workflow, each time a new client is onboarded, a separate process instance will be created for that specific client. This isolates their data and execution flow, making it easier to manage and track individual interactions with the process.

In contrast, the other options describe concepts that do not align with the definition of a Process Instance. All versions of a process model refer to the different iterations of the model itself, not individual executions. The final output of a process pertains to the results produced after a Process Instance completes, rather than the instance itself. Lastly, a type of user interaction with a process indicates how users might engage with a process, but it is separate from the execution of the process model itself.