Item: An item can be thought of as a kind of "package" that contains all the data relevant to the component.

Item Revision: The item contains various development stages of a component, known as revisions. The item revision is a subset of the item; there may be multiple revisions .

Revisions are appended to the item ID with their name (A, B, C, D, ...) (e.g., 000514/A).

Dataset: Within each item revision, so-called datasets are stored.

A dataset usually contains several files (CAD part, preview, attribute forms ...). A dataset is therefore a container for files (ImanFiles).