How are Objects Used Collaboratively?
Some sort of activity involves interactions between objects and/or objects and individuals (which can be thought of as objects as well if you want)
Interaction can be synchronous as when individuals talk to each other; parallel program components exchange MPI messages
- Objects or object properties are shared at same time
Or asynchronous when sharing is done at different times
I post a web page and you look at it later is basic asynchronous sharing model while writing on a blackboard is hallowed synchronous model in teaching