You are currently working on creating the activity list for an initiative in your organization. What characteristic must be assigned to each task in your task list?

Procurement needs are associated with specific deliverables or resource acquisitions, not a mandatory attribute assigned to every individual task in an activity list.

Roles and responsibilities are documented in a separate artifact such as a RACI matrix or responsibility assignment matrix, and are not a required characteristic of each activity entry.

In project management, every activity in the activity list is assigned a unique identifier - typically a numeric or alphanumeric code - so it can be unambiguously referenced in schedules, work breakdown structures, and status reports. This unique number is a foundational attribute required by standard project management practices to enable traceability and progress tracking. Without it, two tasks with similar names could be confused, leading to scheduling or reporting errors.

Risk level is captured in a risk register and linked to work packages or deliverables, but it is not a universally mandatory characteristic assigned to each task in the activity list.