Glossary Updates12 new terms added to the glossaries · October 2, 2026, 22:44 CEST
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Glossary · Automation software engineering and architecture

Reference architecture

German: Referenzarchitektur

In systems and software engineering, a reference architecture is a generic, reusable architecture for a domain or product family that defines typical structures, components, interfaces and terminology from which concrete architectures are derived.

  • Software engineering
  • Standards

In one sentence

A reference architecture is a reusable template of structures, components and interfaces from which concrete architectures are derived.

Example

A machine builder's reference architecture defines the layers from I/O and control through the edge gateway to the cloud, and every new machine project starts from it.

How it applies

  • Engineering: Reference architectures such as ISA-95 for the enterprise-control hierarchy or RAMI 4.0 for Industry 4.0 give projects a common structure and vocabulary. Company reference architectures add approved components and interface standards.
  • Project management: Starting from a reference architecture shortens design and makes projects comparable. Deviations should be documented and justified.
  • Documentation: A reference architecture is a strong basis for reusable documentation: topics describing standard components and interfaces can be reused across projects, and system overviews can follow the same diagrams.

Reference architecture vs. architecture pattern

An Architecture pattern is a generic solution to a recurring design problem, such as layers. A reference architecture is a complete template for a domain and often combines several patterns.

By knowledge.aitechdoc.world · Published September 26, 2026 · Last reviewed

Source: AI TechDoc Blog editorial definition, based on systems and software architecture practice

Definitions follow the cited standards and specifications. Where a source is a copyrighted publication, such as an ISO, IEC or EN standard, the definition is a close paraphrase, not a verbatim quotation, so as not to infringe copyright. We recommend reading the original publication. The sections “How it applies” are editorial commentary by AI TechDoc Blog and are not part of any standard.

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