DTACT System Engine is the central operating system component of the DTACT platform, designed for defense, cyber, and national security organizations. It uses a microservices-based architecture called "Bricks" — modular building blocks that can be linked together to control the flow of information across platform applications. The platform operates on data mesh principles, enabling data fusion across disparate ontologies and infrastructures. It supports decentralized data architectures and allows organizations to aggregate, enrich, analyze, and act on data from over 10,000 connected data sources. The broader DTACT platform consists of four interconnected modules: - System Engine: The core operating system managing Bricks (microservices), with 5 brick categories and 200+ available smart bricks. - DTACT Fusion: Handles data aggregation, transformation, and loading across siloed systems. - DTACT Insight: Provides query and analysis capabilities using PostgreSQL, PRQL, or natural language prompts. - DTACT Action: Manages automated and human-in-the-loop (HITL) action flows, with 567 action flows available. The platform is available as SaaS or on-premise (including air-gapped deployments) and integrates with open source, proprietary, and third-party software. AI enrichment is applied where applicable, with human-in-the-loop controls where needed. It targets a selective customer base in defense, cyber, and national security sectors across at least 3 countries and 6 industries.