An ontology is a structured compilation of features and the relationships among them, often referred to as a taxonomy. These ontologies possess the valuable characteristic of being reusable across diverse projects, making them highly versatile. They play a pivotal role in critical processes such as data labeling, model training, and evaluation. When you engage in the tasks of labeling or reviewing a data asset, the ontology will be conveniently accessible within the Tools panel, serving as an essential guide for your work.