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| Criterion |  Agile Affinity Estimation |  Agile Bucket System |  Growth Hooked Model |  Growth North Star Metric |
|---|---|---|---|---|
Purposedifferent | When many tasks need to be classified quickly, it sorts them by perceived effort and similarity. It reduces the effort of fine-grained estimation for large volumes. | When a large batch of work needs a fast, rough estimate, it sorts items into predefined size buckets. It sorts work by value, risk, and delivery ability. The result is captured as a Bucketed Backlog, Relative Estimates, and Split Candidates. | The Hooked Model helps clarify engagement loops, user behavior, and experiments. It makes repeat behavior measurable and captures the result as a hooked loop, trigger map, and reward design. | When product teams track many metrics, the view of the actual customer outcome easily gets lost. A North Star Metric bundles growth, usage, and value contribution into one signal that makes the system's direction visible. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 30-90 min | 30-90 min | Multiple workshops over several weeks | 1-2 h |
Participantsdifferent | 3-12 | 3-12 | 2-8 | 3-8 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Affinity Size Map, Grouped Estimates, Unclear Items | Bucketed Backlog, Relative Estimates, Split Candidates | Hooked loop, Trigger map, Reward design, Ethics check | North Star metric, Input metric tree, Measurement cadence |
Tagsno overlap | EstimationBacklogRelative sizing | EstimationBacklogRelative sizing | GrowthBehaviorRetention | GrowthMetricsAlignmentRetention |