> 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/kb/instantiation/assets/ontology.md).

# Assets in Ontology

Assets can be defined by instantiating the [Factory Data Model](/vlft/kb/fdm.md) as an ontology [Abox](https://en.wikipedia.org/wiki/Abox).

The VLF tool [OntoGuiWeb](/vlft/tools/ontoguiweb.md) can support the instantiation in the following ways:

* direct instantiation using [Asset Design](/vlft/tools/ontoguiweb/modules/asset-design.md) module
* instantiation of production systems using [System Design](/vlft/tools/ontoguiweb/modules/system-design.md) module
* import and parsing of JSON files using [Utilities](/vlft/tools/ontoguiweb/modules/utilities.md) module