> For the complete documentation index, see [llms.txt](https://virtualfactory.gitbook.io/vlft/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://virtualfactory.gitbook.io/vlft/tools/ontoguiweb/modules/system-control.md).

# System Control

**System Control** tool is an OntoGuiWeb module that supports the definition of a **Release Controller** to constrain the behavior of controlled machines in a production system. A release controller is associated with **CONWIP control policies** observing specific machines and buffers.

![](https://2247033703-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Lh1dC9-F-cM6usakky7%2Fuploads%2F3vIyKg8Pj30KWS73vhkz%2Fimmagine.png?alt=media\&token=8ef2645a-b23c-4beb-b91c-3534b6148d47)