The same goes for most other popular object systems.

As of today he holds multiple patents in distributed object systems and image processing.

An object graph is a view of an object system at a particular point in time.

The first part of the work was devoted to developing a powerful, yet simple object system.

Examples of the former include many distributed object systems.

According to Leonard, the object system was a "general database for managing the individual objects in a simulation".

Today, the object system is a central part of Factor.

Which is to say, it is essentially built into the object system:

(Though both also offer many other features beyond just their respective object systems.)

It uses the actor model for concurrency in a manner that works alongside its object system.