Glossary · Engineering, integration and validation
Multiuser engineering
Also known as: Multi-user engineering, Concurrent engineering in one project
German: Multiuser-Engineering
In industrial automation, multiuser engineering is the ability of several engineers to work on the same automation project at the same time, with the engineering tool managing shared objects, check-in and check-out and conflicts. It is a feature of some integrated engineering tools.
- Validation
In one sentence
Multiuser engineering lets several engineers work on the same automation project at once, with the tool managing shared objects and conflicts.
Example
Two engineers edit different function blocks of the same PLC project while a third adjusts HMI screens; the tool merges their changes into the server project.
How it applies
- Engineering: Large projects split work by area, such as units, HMI and networks. Multiuser engineering reduces waiting times and avoids manually merging project copies.
- Commissioning: Commissioning teams on site can work in parallel, but must coordinate downloads to the controller so that one engineer's changes do not overwrite another's.
- Governance: Clear Responsibility assignment and naming rules are still needed; the tool manages conflicts technically, not organizationally. Multiuser engineering complements, but does not replace, Version control and Configuration management.
- Documentation: The documentation team needs to know when a common project state is frozen, so screenshots and parameter descriptions match a defined release.
Multiuser engineering vs. version control
Multiuser engineering coordinates simultaneous work in one live project. Version control records the history of project states and allows branches, comparisons and rollbacks.
The term is used as a feature name by several vendors; scope and behavior differ between tools, so check the vendor's documentation.