# Sequence of Activities
**Entity class:** Causal And Behavioral-Modeling Layer concept
**Sequence of Activities** is a concept in the causal and behavioral-modeling of the counterterrorism predictive-graph ontology. Sequence of Activities belongs in the ontology because AI can compute over this structure while analysts retain responsibility for interpretation and authorized action.
## Counterterrorism predictive-graph role
The page records capability and analytic function. Any claim of a named operational deployment remains subject to the [[wiki/Counterterrorism Predictive Graph Evidence Ladder|evidence ladder]]. The analytic state should distinguish ground truth, observed evidence, inferred state, and predicted state.
## Relationships
- **domain router:** [[wiki/Causal Inference|Causal Inference]].
- **ontology neighbors:** [[wiki/Behavioral Anomaly|Behavioral Anomaly]] and [[wiki/Activity Pattern|Activity Pattern]].
- **synthesis:** [[wiki/Counterterrorism Predictive Graph|Counterterrorism Predictive Graph]] and [[wiki/Predictive Intelligence Loop|Predictive Intelligence Loop]].
## Sources
- [NIST/SEMATECH — e-Handbook of Statistical Methods (accessed September 23, 2026)](https://www.itl.nist.gov/div898/handbook/)
- [Oden Institute — Tan Bui-Thanh research profile (accessed September 23, 2026)](https://oden.utexas.edu/people/directory/Tan-Bui/)
**As of:** 2026-09-23