Problem-linked duration
Each duration indication attaches to one identified problem. The tool should not record duration without a focal problem.
Duration Index for PIE Case Formulation
The Duration Index is a practitioner-only PIE case formulation tool. Practitioners use it to represent the duration of an identified client problem in a standardized temporal form for assessment, planning, and later review.
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Tool guide
Learn more about this tool
Use this background section to understand when the tool fits, how practitioners use it, and what to consider before sharing it with clients.
Unknown and incomplete states
When duration is uncertain, the practitioner can leave it unknown or incomplete rather than forcing a value.
History without overreach
Prior duration indicators can remain visible for review, but the system does not infer prognosis or recurrence rules.
Does the Duration Index predict whether a problem will persist?
No. It represents temporal status and does not infer prognosis.
Can the tool classify a problem as acute, chronic, or recurring?
Only if those categories are supplied by the underlying index. The demo must not invent categories or thresholds.
Can duration be recorded without a focal problem?
No. The duration indicator must attach to an identified problem.
What happens if duration is unknown?
The practitioner can mark duration as unknown or incomplete so the case formulation does not imply a value.