Explore the OpenOpcUa Ecosystem

OpenOpcUa Ecosystem is the technical authority hub around an implementation-first OPC UA platform: OOUAMiddleware — an industrial-grade OPC UA implementation and middleware, covering the full stack and enabling dynamic, NodeSet-based information modeling.

Looking for industrial services, integration or support? Visit 4CE Industry.

The Ecosystem at a Glance

The OpenOpcUa ecosystem is structured to keep a clear separation between: (1) OpenOpcUa as a technical authority and open knowledge hub, and (2) 4CE Industry as the commercial vehicle for industrial services. This ensures long-term sustainability and technical consistency while enabling professional delivery.

OpenOpcUa

  • Technical authority & reference architecture
  • Implementation-first approach (real OPC UA stack, not a “sample SDK”)
  • Specifications, guidance, patterns, and best practices
  • Community & technical sponsorship

4CE Industry

  • Industrial services (integration, delivery, support)
  • Projects and customer deployments
  • Training, audits, architecture reviews
  • Commercial engagement & contracts

The Technology Core: OOUAMiddleware

OOUAMiddleware is a complete OPC UA implementation and middleware designed for industrial robustness: full stack coverage, dynamic modeling, and modular extension — enabling you to build, deploy and evolve OPC UA systems without being locked into a limited SDK abstraction.

Industrial Positioning

The OpenOpcUa Ecosystem is not a conceptual framework or a lightweight SDK wrapper. It is built around a real industrial OPC UA middleware platform designed to operate in demanding environments. Performance constraints, lifecycle management, model evolution and long-term maintainability are treated as first-class engineering concerns. This industrial positioning differentiates OOUAMiddleware from generic development toolkits and reinforces its role as a structured, production-ready foundation for OPC UA systems.

Full OPC UA Stack

End-to-end OPC UA implementation with industrial constraints in mind: performance, reliability, maintainability.

NodeSet-based Modeling

Information models are driven by NodeSets (including Companion Specifications), enabling dynamic, scalable modeling.

Modular Add-ins (VPI/VFI)

Extend runtime and connectivity with a modular add-in architecture for domain and protocol integrations.

Dive deeper on the concepts here: Understand the Architecture.

From Model to Runtime: the 5-Phase Toolchain

The ecosystem is designed around a complete engineering flow: from business/domain modeling to OPC UA NodeSet, then instantiation, configuration and execution. This approach preserves the separation between Model and Runtime while ensuring traceability and industrial scalability.

Execution Cycle with the OpenOpcUa Toolchain Phase 1 UML Modeling Capture of the business model, independent of the technology. Industrial knowledge formalized in UML. Phase 2 UML → NodeSet Conversion Automatic transformation into standard OPC UA NodeSet. Zero code, native compliance. Phase 3 Instantiation Deployment of real equipment through model instantiation of the OPC UA model. Phase 4 Configuration Server setup, security, endpoints, modules, archiving and runtime. Phase 5 Execution The runtime executes, collects and historizes and feeds the digital ecosystem. SCADA, MES, BI, Cloud: ready to use. OpenOpcUa transforms OPC UA from a technical project into an enterprise-grade industrial platform.

Why it matters

  • Models evolve without breaking deployments
  • Reuse across projects and domains
  • Consistent mapping to Companion Specifications
  • Faster implementation and safer changes

What you get

  • Engineering methodology aligned with OPC UA modeling practices
  • Automation between artifacts (UML → NodeSet → runtime instances)
  • Industrial deployment readiness
  • Extensibility through add-ins and controlled integration points

Model-Driven Engineering Vision

A core principle of the OpenOpcUa Ecosystem is model-driven engineering. Information models are not treated as static artifacts but as living assets that evolve with the business domain. By structuring the engineering workflow from UML modeling to NodeSet generation and runtime instantiation, the ecosystem ensures traceability, scalability and controlled evolution across the entire system lifecycle.

Funding, Community, and Long-Term Sustainability

OpenOpcUa is sustained through a long-running Core Funding model. Technical sponsors help maintain and evolve the platform, documentation, and interoperability roadmap.

Explore Core Funding Join the Ecosystem

If you want industrial delivery, support, or project engagement, consult 4CE Industry.