# eXpeditionary Live-Virtual-Constructive Command Center **Entity class:** Exercise-control and common-operating-picture system **Aliases:** XLCC ## Definition The **eXpeditionary Live-Virtual-Constructive Command Center (XLCC)** provides exercise control and a common operating picture for a distributed [[wiki/Multi-Domain Operational Environment|Multi-Domain Operational Environment]]. It integrates simulation, instrumentation, tactical systems, observations, and real-time data for planning, execution, assessment, and post-test analysis. ## Ground Truth and Perceived Truth CPE ST3 documentation says XLCC can visualize both **ground truth** and **perceived truth** for friendly and threat sensors. That is a direct engineering counterpart to dramaturgical front-stage/back-stage separation: controllers can maintain the underlying state while regulating what a participant or sensor is permitted to perceive. ## Relationships - **part of:** [[wiki/Multi-Domain Operational Environment|MDOE]]. - **federates:** Threat Battle Command Force and [[wiki/Intelligence Electronic Warfare Tactical Proficiency Trainer|IEWTPT]]. - **perception model:** [[wiki/Ground Truth and Perceived Truth|Ground Truth and Perceived Truth]]. - **exercise role:** [[wiki/Exercise Control|Exercise Control]] and [[wiki/White Cell|White Cell]] at systems scale. ## Sources / Provenance - [CPE ST3 — XLCC](https://cpest3.army.mil/Project-Offices/PL-TSMO/IMO/XLCC/)