Unified Namespace
What is a Unified Namespace?
A Unified Namespace (UNS) is a central real-time data architecture where all production and enterprise data is published into a single structured MQTT-based data space. Instead of point-to-point integrations, all OT and IT systems publish and consume from one shared namespace.
It becomes the operational “single source of truth” for connected manufacturing.
Why it matters
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Real-time visibility across plants, lines and machines
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Reduced integration complexity through publish/subscribe architecture
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Cleaner OT/IT convergence with a shared data model
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Stronger analytics for OEE, quality and energy
Practical examples
1. Cross-plant OEE reporting
Standardized machine events feed a central dashboard with comparable KPIs.
2. Process & quality analytics
Process parameters and QC data share the same namespace → faster root-cause analysis.
3. Digital transformation alignment
UNS acts as the reference model for all new OT/IT projects.
Common mistakes
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Treating UNS as a product instead of an architectural pattern
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Missing contextual data (orders, quality states)
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No governed topic model
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Seeing MES only as a consumer instead of a data provider
Unified Namespace & Cloud MES (SYMESTIC)
A Cloud MES leverages the UNS by:
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Consuming machine and process data
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Publishing context (orders, shifts, quality states)
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Calculating KPIs
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Enabling scalable integrations without custom connectors

