# Network Compartmentation
**Entity class:** Operational Graph Concepts concept
**Network Compartmentation** is a relational system whose structure, membership, and behavior can change over time. Within a predictive graph, Network Compartmentation helps separate recorded evidence from the hidden state inferred from that evidence.
## Counterterrorism predictive-graph role
A relationship or identity match is an evidence-bearing hypothesis with source, time, and confidence. It is not guilt by association. The analytic state should distinguish ground truth, observed evidence, inferred state, and predicted state.
## Relationships
- **domain router:** [[wiki/Intelligence Tradecraft|Intelligence Tradecraft]].
- **ontology neighbors:** [[wiki/Cell Structure|Cell Structure]] and [[wiki/Operational Security|Operational Security]].
- **synthesis:** [[wiki/Counterterrorism Predictive Graph|Counterterrorism Predictive Graph]] and [[wiki/Predictive Intelligence Loop|Predictive Intelligence Loop]].
## Sources
- [NCTC — Guidelines for Access, Retention, Use, and Dissemination of United States Person Information (accessed September 23, 2026)](https://www.odni.gov/files/NCTC/documents/RelatedContent_documents/NCTCGuidelines.pdf)
- [ODNI — Data Mining Report CY2021–2023](https://www.odni.gov/files/documents/CLPO/CY2021-2023_Data_Mining_Report_FINAL.pdf)
**As of:** 2026-09-23