Objectives:
This study proposes, specifies, and evaluates a five-layer data-centre architecture integrated with an Electronic Warfare Network Operations Center (EWNOC) for real-time C5I operations in contested, Denied, Disconnected, Intermittent, and Limited (D-DIL) environments. The contribution is a design artefact accompanied by a reproducible model-based evaluation.

Methods:
Following Design Science Research (DSR), the study outlines three research questions, six design objectives, and six testable propositions. It specifies system boundaries, data flows, interfaces, and Zero Trust enforcement points. Evaluation against a centralized baseline and edge configuration employs: (i) a parameterized decision-cycle latency model with Monte Carlo and Sobol’ sensitivity analysis; (ii) an alternating-renewal availability model across four stress scenarios (EMS denial, thermal, physical attrition); and (iii) a model-based fault-injection campaign across eleven fault classes.

Results:
The architecture achieves a modelled machine-side decision-cycle latency of 0.96 ms at idle and 4.60 ms at peak load, outperforming the edge configuration (8.21 ms) and centralized baseline (64.8 ms). Under mid-range planning assumptions, mission availability reaches 99.907% with a 14.2-min MTTR (baseline: 99.40%, 89 min). Target goals (99.985% availability, 12-min MTTR) are achieved (99.993%, 2.2 min) only within an explicit envelope of failover coverage, common-cause separation, and logistics. Sensitivity is dominated by repair time, failover coverage, and common-cause fractions.

Conclusions:
The artefact offers transparent, falsifiable performance claims. High availability and fast recovery are conditional design requirements rather than intrinsic properties, requiring physical prototyping and expert evaluation prior to operational deployment.