Final answer:
An 'Assignment' is the term used to describe a work item that requires human attention in an application, indicating a task allocated to an individual or team.
Step-by-step explanation:
The term used to describe a work item that requires human attention in the application is an Assignment. In the context of computer systems and applications, an assignment could be a task or a work item allocated to a specific person or group to complete. When referring to workflow and task management applications, the term assignment is commonly used to signify that a particular work item has been allocated and requires action or input from a human operator.